MSK Flashcards
What is ankylosing spondylitis?
a chronic progressive inflammatory arthropathy associated with HLA-B27 gene which ultimately may lead to radiographical changes in the spine and sacroiliac joints.
what percentage of patents with ankylosing spondylitis have HLA-B27 gene? what chromosome is it found on?
90%
autosomal dominant on chromosome 6
what are 3 risk factors for ankylosing spondylitis?
HLA-B27
FHx
male
what are 5 presentations of ankylosing spondylitis?
Severe inflammatory (improved by NSAIDs) back/ butt pain and stiffness
worse in morning (>30 mins) improves with activity
Systemic symptoms
Ethesitis - inflammation of where tendons or ligaments insert into bone
Dactylitis
what are 5 associated conditions with ankylosing spondylitis?
5As
Anterior uveitis
Aortic regurgitation
AV block
Apical lung fibrosis
Anaemia of chronic disease
what age group most commonly presents with ankylosing spondylitis?
late teens to 20s
what test can be done o/e for ankylosing spondylitis?
Schober’s test - assesses spinal mobility
may also have reduced lateral flexion and chest expansion
what are 4 investigations for ankylosing spondylitis?
spine and sacral Xray
HLA-B27 gene testing
Inflammatory markers
MRI spine - bone marrow oedema
what are 7 radiological signs of ankylosing spondylitis?
bamboo spine
squaring of vertebral bodies
subchondral sclerosis
subchondral erosions
Syndesmophtes - areas of bone growth where ligaments insert into bone
Ossifications
Fusions - facet, sacroiliac and costovertebral joints
what is the treatment for ankylosing spondylitis?
1 - NSAIDs
2- anti-TNF - infliximab, etancercept, adalimumab
3 - IL-17 MAB - secukinumab, ixekizumab
OR
JAK inhibitor - Upadacitinib
what are 5 complications of ankylosing spondylitis?
osteoporosis
vertebral fractures
anaemia
cauda equina
apical fibrosis and pulmonary involvement
what are the 5 seronegative spondyloarthropathies?
Psoriatic arthritis
ankylosing spondylitis
reactive arthitis
IBD associated arthritis
juvenile idiopathic arthritis
what are the 8 common symptoms of the seronegative spodyloarthropathies?
SPINE ACHE
sausage digits - dactylitis
Psoriasis
inflammatory back pain
NSAID responsive
Enthesitis - inflammation at point tendon attaches to bone
Arthritis
Crohn’s/Colitis/CRP elevated
HLA-B27
eyes - uveitis
what is fibromyalgia?
a chronic pain syndrome diagnosed by the presence of widespread body pain and tender points at specific anatomical locations
does fibromyalgia affect more men or women?
women
what are the overlapping pain conditions with fibromyalgia?
IBS
TMJD
interstitial cystitis
vulvodynia
tension headaches
what are 3 risk factors for fibromyalgia?
FHx
rheumatic conditions
age 30-60
what are 5 clinical manifestations of fibromyalgia?
chronic pain
diffuse tenderness on examination
fatigue unrelieved by rest/sleep disturbance
morning stiffness
headaches
what are 3 differentials for fibromyalgia?
rheumatoid arthritis
vitamin D deficiency
chronic fatigue syndrome
what is the treatment for fibromyalgia?
Education
exercise
CBT
Pregabalin
Duloxetine
Amitriptyline
what is the criteria for a fibromyalgia diagnosis?
American college of rheumatology 31 point questionnaire including widespread pain score and symptom severity score
Widespread pain index >7 and symptom severity scale score >5
OR
WPI 3-6 and SS scale score >9
Symptoms present for at least 3 months
No other explanation
where are the 9 tender sites in fibromyalgia?
Occiput
Lower cervical region
Trapezius
Supraspinatus
Second rib
Lateral epicondyle
Gluteal region
Greater trochanter
Knees
What is giant cell arteritis?
a granulomatous vasculitis of large and medium-sized arteries. It primarily affects branches of the external carotid artery, and it is the most common form of systemic vasculitis in adults
What is gout?
an inflammatory arthritis caused by deposition of monosodium urate crystals within joints
what are grout crystals like?
monosodium urate - negatively bifringent
needle shaped
what joints is most commonly associated with gout?
big toe - MTP (metatarsophalangeal)
what is gout most commonly caused by?
renal under excretion of urate - 90%
what are 3 risk factors for gout?
Diet of red meat, seafood and alcohol
Diuretics + low dose aspirin
Metabolic syndrome
impaired renal function
what is the pathophysiology of gout?
High urate levels result in super saturation and crystal formation => monosodium urate crystals in joint interact with undifferentiated phagocytes and trigger acute inflammation by inducing TNF-alpha and activating signalling pathways
what are 4 clinical manifestations of gout?
rapid onset of severe joint pain in few joints
joint stiff, red, hot
tophi
what renal disease can gout lead to?
Interstitial nephritis and eventually CKD due to urate crystal deposit
what are 3 investigations for gout?
joint aspiration - gold
serum uric acid levels - 4-6 weeks after attack
joint X-ray
what may be seen on x-ray in gout?
Usually normal
chronic -
Joint effusion but space maintained
Punched out erosions
Lytic lesions
Sclerotic margins
Outlines of tophi
what are 3 bloods needed in a gout work up?
U+E - assess renal function for appropriate dose orf allopurinol
FBC - WCC may be raised Fasting glucose and lipid profile
what are 3 differentials for gout?
pseudo gout
septic arthritis
rheumatoid arthritis
what is the management of an acute gout attack?
1 - NSAID - Naproxen 750mg one off then 250mg every 8 hours
OR
1 - Colchicine - 500 micrograms 2-4x a day - 3-6 days
2 - corticosteroids - 15mg Pred OD PO
continue allopurinol if already on it
what is an adverse effect of colchicine?
diarrhoea
who should colchicine be used with caution in?
renal impairment
dose reduction if eGFR 10-50
Avoid if eGFR <10
what is the management of gout chronically?
lifestyle advise
Uric acid lowering therapy - 1 - allopurinol - 100mg OD PO
2 - Febuxostat
Uricosuric agent - sulfinpyrazone
what is the serum urate target in gout?
<360 micromol/L
<300 micromol/L with tophi, arthritis or ongoing flares
what class of medication is allopurinol?
xanthine oxidase inhibitor
How long should you wait to start urate lowering therapy after an acute attack?
2 weeks - not lots of evidence but may precipitate further attack
what is the criteria for starting urate lowering therapy?
Can start after 1st attack
Definitely if:
2+ attacks
Tophi
Renal disease
uric acid renal stones
prophylaxis if on cytotoxics or diuretics
what are 3 complications of gout?
joint destruction + tophi
kidney disease - acute uric acid nephropathy
urate nephrolithiasis + CKD
what is osteoarthritis?
a non-inflammatory degenerative arthritis characterised by progressive synovial joint damage
what are 7 risk factors for osteoarthritis?
Older age - 50+
Obesity
Occupation
Physically demanding job/sport
Trauma
Family history
Female
what are the 5 X-ray manifestations of osteoarthritis?
JOSSA
joint space narrowing
osteophyte formation
subchondral sclerosis
subchondral cysts
abnormalities of bone contour
what is the pathophysiology of osteoarthritis?
there is a failure in maintaining the homeostatic balance of the cartilage matrix synthesis and degradation, resulting from reduced formation or increased catabolism
what are 5 presentations of osteoarthritis?
Pain
Functional difficulty and reduced ROM
Crepitus
Bony deformaities and joint enlargement
Effusions
what joints does osteoarthritis usually affect?
weight bearing joints asymmetrically
Hips, knees, DIPJ, CMC joint at base of thumb, Lumbar spine, cervical spine
What are 5 hand signs of OA?
Heberdens nodes - DIP joints
Bouchards nodes - PIP joints
Squaring of base of thumb - CMC joint
Weak grip
Reduced ROM
What is the criteria for OA diagnosis?
> 45 years old, typical pain, no /<30 mins of morning stiffness
what is the management for osteoarthritis?
Non pharma - therapeutic exercise, weight loss, occupational therapy
Pharma -
1 - Topical NSAIDs
2 - oral NSAIDs + PPI
3 - intra-articular steroid injections - 2-10 weeks relief
Surgical
- joint replacement
Weak opiates and paracetamol for short infrequent use
what are 5 side effects of NSAIDs?
Gastritis and peptic ulcers - GI bleeds
Renal - AKI (acute tubular necrosis), CKD
Cardio - HTN, heart failure, MI, stroke
Exacerbating asthma
what are heberden’s node?
osteoarthritic nodes of the DIP joints
what are Bouchard’s nodes?
osteoarthritic nodes of the PIP joints
what kind of appearance does erosive OA have on Xray?
gulls wing
What is osteomyelitis?
an inflammatory condition of bone caused by an infecting organism
what is the most common cause of osteomyelitis?
S. Aureus
what is the most common bacterial cause of Osteomyelitis in sickle cell?
Salmonella
what are the 3 paths of infection in osteomyelitis?
Direct inoculation
Contiguous spread from adjacent tissues
Haematogenous spread
what are 7 risk factors for Osteomyelitis?
Open fracture
orthopaedic operations - esp prosthetics
diabetes - esp with ulcers
peripheral arterial disease
IVDU
Immunosuppression
Sickle cell disease
what organisms mainly cause osteomyelitis in infants?
S. Aureus
group B strep
aerobic gram -ve bacili
candida albicans
what organisms mainly causes osteomyelitis in children?
1 - S. Aureus
2 - Strep pneumoniae
Haemophilus influenzae in unvaccinated children
what organisms mainly cause osteomyelitis in adults?
1 - S. Aureus
coagulase negative staph
aerobic gram negatives
anaerobic gram +ve peptostreptococci
what organisms mainly cause osteomyelitis in the elderly?
gram negative bacili
what organisms usually cause osteomyelitis in IVDU?
S. Aureus
Can also get pseudomonas in pelvis
what are 3 risk factors for osteomyelitis?
pHx of osteomyelitis
penetrating injury
IVDU
what is the presentation of acute osteomyelitis?
Symptoms over a few days
Pain, erythema, swelling, warmth
Fever
malaise
what are 3 presentations of chronic osteomyelitis?
Local symptoms - swelling, erythema, pain - no systemic symptoms
Draining sinus tract
Non-healing fractures
Diabetes ulcers >2cm
where is the most common location of osteomyelitis?
lower limb
what are 3 investigations for osteomyelitis?
Bloods - FBC, CRP, Cultures
X-ray - may be negative for first 2 weeks
MRI/CT
what are 3 signs of osteomyelitis on x-ray?
periosteal reaction - change in surface of bone
Localised osteopenia
Destruction of areas of bone architecture
what is the gold standard for osteomyelitis?
bone biopsy, cultures and histopathology
what is the treatment of osteomyelitis?
6 weeks IV Abx
- IV Flucloxacillin 8g /day
- Pen allergy - Clarithromycin
Debridement - surgery to remove necrotic bone
what is required for management of osteomyelitis with prosthetic joint involvement?
may require complete revision surgery
what are 3 complications of osteomyelitis?
drug reactions
amputation
recurrence
what is osteoporosis?
Systemic skeletal disease characterised by low bone mass and microarchitectural deterioration of bone tissue with consequent increase in bone fracture and fragility
how do bisphosphonates work?
slow down osteoclast activity => reduce bone breakdown
how does Denosumab work?
anti-resorbative - inhibits osteoclast activity
how does teriparatide work?
anabolic - synthetic parathyroid hormone, increases osteoblastic activity
what are the T score ranges?
> -1 = normal
-1 - -2.5 = osteopenia
< -2.5 = osteoporosis
< -2.5 + a fracture = severe osteoporosis
What is pseudogout?
an acute inflammatory arthritis of one or more joints due to calcium pyrophosphate deposition on joint surfaces
what are 7 risk factors for pseudogout?
advanced age >65
injury/trauma
hyperparathyroidism
haemochromatosis
wilsons disese
acromegaly
low magnesium and phosphate
what kind of crystals are deposited in psudogout?
calcium pyrophosphate crystals
positively bifringent rhomboid shaped crystals
what are 3 manifestations of pseudogout?
Most commonly knee, wrist and shoulders
red painful and tender joints
sudden worsening of osteoarthritis
joint effusion
what can be see on xray in pseudogout?
chondrocalcinosis - calcification in the hyaline and/or fibrocartilage - white line in joint space
can also have oesteoarthritis type changes
what are 3 investigations for pseudogout?
synovial fluid aspirate analysis - gold
joint X ray - chondrocalcinosis
serum calcium + PTH
what are 3 differentials for pseudogout?
gout
septic arthritis
osteoarthritis
what is the management for pseudogout?
1 - NSAIDs or Colchicine
corticosteroid intra-articular
Intra-articular steroids
Oral steroids
what is the general order of affected joints in pseudogout?
Knee > wrist > shoulders > ankles >elbows
What is psoriatic arthritis?
a seronegative chronic inflammatory joint disease associated with psoriasis
what are 5 different types of psoriatic arthritis?
Asymmetrical oligoarthritis - affecting 1-4 joints at a time
Symmetrical polyarthritis >4 joints
Distal interphalangeal predominant pattern
Spondylitis
Arthritis mutilans
what is arthritis mutilans?
most severe form form of psoriatic arthritis - causes osteolysis of bones around joints leading to progressive shortening of digits - telescoping digits
what are 3 risk factors for psoriatic arthritis?
psoriasis
FHx
Hx of joint/tendon trauma
what is one features of psoriatic arthritis that distinguishes it from RhA?
DIP joint involvement
what are 5 hand signs of psoriatic arthritis?
Psoriasis plaques
Nail pitting
onycholysis
Dactylitis
Enthesitis
what are 5 manifestations of psoriatic arthritis?
Painful stiff joints - DIP involvement
Symmetrical or asymmetrical
psoriatic skin lesions - though often precedes plaques
Nail changes
what screening tool can be used for psoriatic arthritis?
psoriasis epidemiological screening tool
What are 4 X-ray features of psoriatic arthritis?
Pencil in cup deformity
periostitis - inflammation of periosteum
ankylosis
osteolysis
dactylitis
what is the mangement for psoriatic arthritis?
NSAIDs - mild
DMARDs - methotrexate, sulfasalazine
anti0TNF-alpha inhibitors - infliximab
MAB - Ustekinumab
what are 3 complications of psoriatic arthritis?
Joint deformity
cardiovascular risks
malignancy- skin cancer
What is reactive arthritis?
A sterile inflammatory arthritis that occurs after exposure to certain gastrointestinal and genitourinary infections.
what is the classic triad of reactive arthritis? what is the way to remember it?
Arthritis
Urethritis + balantitis
Conjunctivitis/anterior uveitis
Can’t see, can’t wee, can’t climb a tree
is reactive arthritis usually asymmetrical?
YES - also usually only affects one joint - mono arthritis
who is reactive arthritis most common in?
Men with HLA-B27
what is one condition that is often associated with reactive arthritis?
HIV - should exclude in presenting patients
what are 5 causative organisms for reactive arthritis?
GU - chlamydia trachomatis, gonorrhoea
GI - salmonella, shingella, campylobacter
what are 4 risk factors for reactive arthritis?
HLA-B27
male
chlamydial/GI infection
HIV
what are 3 investigations for reactive arthritis?
ESR/CRP - elevated
joint aspiration
infectious serology/urine/stool
what are 3 differentials for reactive arthritis?
gout
pseudogout
septic arthritis
what is the management of reactive arthritis?
PRESUME SEPTIC UNTIL PROVEN OTHERWISE
NSAIDs - naproxen/ibruprofen
corticosteroids injections
Tx triggering infection
usually gone in 6 months
DMARDs - in recurrent cases
what are 3 complications of reactive arthritis?
circinate balanitis
uveitis
keratoderma blennorhagicum
What is rheumatoid arthritis?
An autoimmune chronic inflammatory condition of the synovial lining of joints, tendon sheaths and bursa
what are 4 risk factors for Rheumatoid arthritis ?
Female
Smoking
Obesity
Fhx - HLA DR4
what are 6 manifestations of RhA?
Symmetrical polyarthritis > 6 weeks
Morning stiffness lasting >30 mins
Joint deformities
Rheumatoid nodules
Systemic symptoms - fatigue, wt loss, flu like illness, muscle aches
what joints are usually spared in rheumatoid arthritis?
DIP
Lumbar spine
what is felt on palpating rheumatoid arthritis joint?
feel boggy
what are the 4 deformities associated with Rheumatoid arthritis?
Swan’s neck
Boutonniere - pip always bent
Ulnar deviation
Z-thumb deformity - hyperextension of thumb IPJ and flexed MCP joint
what are 12 extra-articular manifestations of rheumatoid arthritis?
Pulmonary fibrosis
Felty’s syndrome
Sjogrens syndrome
Anaemia of chronci disease
CVD
eye manifestations
rheumatoid nodules
Lymphadenopathy
Carpel tunnel
Amyloidosis
Bronchiolitis obliterans
Caplan syndrome
what are 6 ocular manifestations of rheumatoid arthritis?
Dry eye syndrome - keratoconjunctivitis sicca - most common
episcleritis
scleritis
keratitis
cataracts - secondary to steroids
retinopathy - secondary to hydroxychloroquine
what is Felty’s syndrome?
Triad
rheumatoid arthritis
Neutropenia
Splenomegaly
what is bronchiolitis obliterans?
small airway destruction and airflow obstruction in lungs
associated with rheumatoid arthritis
what is caplan syndrome?
pulmonary nodules in rheumatoid arthritis patient exposed to coal, silica, asbestos or dust
what are 2 autoantibodies present in Rheumatoid arthritis?
Rheumatoid factor
anti-CCP
what are 6 conditions associated with positive rheumatoid factor?
Felty’s syndrome
Sjorgren’s syndrome
infective endocarditis
SLE
Systemic sclerosis
General population
what is the most sensitive and specific autoantibody in Rheumatoid arthritis?
Anti-CCP (cyclic citrullinated peptide)
what is one serious cervical spine complication in rheumatoid arthritis?
Atlantoaxial subluxation - damage to ligaments around odontoid peg of axis allows for it to shift within atlas which can lead to subluxation and spinal cord compression
Need to be considered in general anaesthetic - visualise with MRI
what are 5 x-ray findings in rheumatoid arthritis?
Soft tissue swelling
periarticular osteopenia/porosis
joint space narrowing
Periarticular erosions
subluxation
what questionnaire can be used to assess functional ability and response to treatment in rheumatoid arthritis?
Health assessment questionnaire
What questionnaire can be used to monitor disease activity in rheumatoid arthritis?
Disease activity score 28 joints - DAS28
What is the management of 1st presentation of rheumatoid arthritis in GP?
NSAID cover
Urgent referral to Rheumatology
Physio and OT
what is the initial specialist therapy for rheumatoid arthritis?
DMARD monotherapy - methotrexate, sulfasalazine, leflunomide, hydroxychloroquine
+/- Prednisolone bridging
when are patients with rheumatoid arthritis trialled on a TNF-inhibitor?
Inadequate response to 2 DMARDs
Etanercept
Infliximab
Adalimumab
what are 2 rheumatoid arthritis medications that are safe in pregnancy?
Sulfasalazine
Hydroxychloroquine
after what gestation should NSAIDs not be used?
32 weeks - risks early closure of ductus arteriosus
what is the MOA of methotrexate?
inhibits dihydrofolate reductase - enzyme for synthesis of purines and pyrimidines
what are 5 adverse effects of methotrexate?
Mucositis
Myelosuppression
Pneumonitis
Pulmonary fibrosis
Liver fibrosis
How long before conception does methotrexate need to be stopped in both men and women?
6 months
How often is methotrexate taken?
ONCE A WEEK
how often should people on methotrexate be monitored?
FBC, U+E, LFT every 2-3 months
what should be prescribed with methotrexate?
5mg folic acid once a week
take >24h after methotrexate
what are 3 medications that CANNOT be prescribed with methotrexate?
Trimethoprim
Co-trimoxazole
High dose aspirin
what is the treatment of methotrexate toxicity?
Folinic acid
What is septic arthritis?
the acute infection of 1 or more joints caused by pathogenic inoculation of microbes. It occurs either by direct inoculation or via haematogenous spread and can destroy a joint in under 24 hours.
what is the most common joint to be infected with septic arthritis?
knee
what is the most common causative organism for septic arthritis?
S. Aureus
who 2 gram negative bacteria cause septic arthritis? what patients in?
E. COLI and PSEUDOMONAS AERUGINOSA
IVDU
immunosuppressed
neonates
elderly
what are 2 gram positive causative bacteria of septic arthritis? what patients affected?
Strep group A (pyogenes) - <5yrs
Staph epidermis - prosthetic joints
who gets neisseria gonorrhoea septic arthritis?
sexually active people
what are 6 risk factors for septic arthritis?
underlying joint disease/prosthetic joint
IVDU, indwelling catheters
immunosuppression
Skin infections
Extremes of age
what are 5 manifestations of septic arthritis?
hot, swollen, painful, red
restricted ROM
fever
affecting single joint (90%)
what are 3 investigations for septic arthritis?
joint aspiration - gold
FBC - leukocytosis
CRP and ESR - high
blood cultures
what are 3 differentials for septic arthritis?
osteoarthritis
pseudogout
Gout
what is the management of septic arthritis?
IV antibiotics - 4-6 weeks
- Fluclox, Clindamycin, Vancomycin
Surgical drainage either needle aspiration or arthroscopy
STOP methotrexate and anti-TNF alpha
double steroids (if on)
rest and splint
what is the aspirate WCC in septic arthritis usually?
> 50 000
what are 3 complications of septic arthritis?
sepsis
osteomyelitis
joint destruction
What is systemic lupus erythramatosus?
a chronic systemic autoimmune condition caused by a type 3 hypersensitivity reaction leading to immune complex deposition in many organs
what is the typical demographic for SLE
Female
Afro-Caribbean
20-40 years
what are 10 manifestations of SLE?
Malar (butterfly)/ photosensitive /discoid rash
Non-specific - fatigue, wt loss, arthralgia, myalgia, fever
lupus nephritis - oedema
Arthritis
Raynaud’s phenomenon
SOB, pleuritic chest pain
Splenomegaly
mouth ulcers
hair loss
lymohadenopathy
what are 3 antibody tests for SLE?
ANA (anti-nuclear antibodies) - most sensitive
Anti-dsDNA - most specific
Anti-smith antibodies - very specific, not sensitive
Anti-Ro, Anti-La
Anti-Scle-70
Anti-Jo-1
are complement levels high or low in SLE?
low in active disease as formation of immune complexes leads to consumption of complement
what blood clotting disorder can occur secondary to SLE?
Antiphospholipid syndrome
what are 3 differentials for SLE?
Rheumatoid Arthritis- SLE less symmetrical
antiphospholipid syndrome
mixed connective tissue disease
what is the management of SLE?
1 - hydroxychloroquine
NSAIDs
corticosteroids - prednisolone
2 - DMARDs - methotrexate, biologics - rituximab, belumumab
what are 9 complications of SLE?
Cardiovascular disease - due to chronic inflammation
Anaemia
Pericarditis
Pleuritis
interstitial lung disease
Lupus nephritis
Neuropsychiatric SLE
Recurrent miscarriage, IUGR, Pre-eclampsia, pre-term labour
VTE - anti-phospholipid syndrome
what antibodies are found in drug induced lupus?
anti-histone antibodies
ANA usually positive
dsDNA usually negative
what are 5 medications that can cause drug induced lupus?
Procainamide
hydralazine
isoniazid
minocycline
phenytoin
what is the most common form of lupus nephritis?
Diffuse proliferative glomerulonephritis
presents with haematuria, proteinuria, hypertension, oedema
most severe!
what can be seen on renal biopsy in SLE sclerosing glomreulonephritis?
Hypercellular glomerulus
Thickened basement membrane
Wire-loop appearance of endothelial and mesangial proliferation
what is the management of lupus nephritis?
lifestyle - stop smoking, exercise, diet
Corticosteroids
immunosuppression
Hydroxychloroquine
Dialysis
ACEi for renoprotection and HTN
how long does morning stiffness in OA last?
<30 mins
what is FRAX?
predicts risk of fragility fracture over the next 10 years
age, BMI, smoking, alcohol
what group of people does N. Gonorrhoea cause septic arthritis in?
sexually active young adults
what antibiotics are used in septic arthritis?
IV flucoxacillin - gram pos
(clindamycin in allergy)
IV cefotaxime - gram neg
what are 4 risk factors for SLE?
female
FHx
middle aged
what is the gold standard investigation of osteomalacia?
iliac bone biopsy with double tetracycline labelling
rare as invasive
what is osteomalacia?
a metabolic bone disease characterised by incomplete mineralisation of the underlying mature organic bone matrix (osteoid) following growth plate closure in adults
caused by vitamin D deficiency
rickets in children
what causes osteomalacia?
vitamin D deficiency
calcium or phosphate deficiency
what is the presentation for osteomalacia and vitamin D deficiency?
Fatigue
Bone pain
Muscle weakness
muscle aches
pathological or abnormal fractures
what are 3 skeletal changes that can be seen in osteomalacia?
Pseudofractures - Looser’s zones - radiolucent bands traversing part way though bones due to demineralisation
Bowing deformities
Vertebral fractures
what are 4 risk factors for osteomalacia?
risks for low vitamin D
Darker skin
low sunlight exposure
living in cold climates
spending most of time indoors
what is normal serum vitamin D?
50-75 nmol/L
what are 5 investigations for osteomalacia?
serum calcium and phosphate
serum 25-hydroxyvitamin D
PTH level - may be high
Alk phos - might be high
what is the treatment of osteomalacia?
Colecalciferol - 50 000 IU weekly for 6 weeks or 4000IU OD for 10 weeks
IM calcitrol - if suspected absorption issue
should check calcium in first month as low vitamin d may mask hypercalcaemia in primary hyperparathyroidism
How much vitamin d should everyone be taking?
400IU (10 micrograms)
which discs are most commonly affected in vertebral disc degeneration?
lower lumbar spine - L5/S1 then L4/L5
what are 5 risk factors for disc prolapse?
Increasing age
Smoking
genetics
High BMI
Occupation - heavy lifting, bending, operating machinery
what is the pathophysiology of disc prolapse?
Over time nucleus pulposus loses mechanical ability to withstand pressure
There is also weakening of posterior longitudinal ligament
prolapsed disc causes compression of nearby nerve roots and/or cauda equina
what are 5 manifestations of vertebral disc prolapse?
Lower back pain
Radiculopathy
Neurological weakness
Paraesthesia
Cauda equina
what is the presentation of a L3 nerve root compression?
Sensory - loss over anterior thigh
Motor - weak hip flexion, knee extension and hip adduction
Reflex - Knee reduced
Positive femoral stretch test
what is the presentation of L4 nerve root compression?
Sensory - loss of anterior aspect of knee and medial malleolus
Motor - weak knee extension and hip adduction
Reflex - reduced knee
Positive femoral stretch test
what is the presentation of L5 nerve root compression?
Sensory - loss to dorsum of foot
Motor - weakness in dorsiflexion
Reflexes - intact
Positive sciatic nerve stretch test
what is the presentation of S1 nerve root compression?
Sensory - loss of posterolateral leg and lateral foot
Motor - weak plantarflexion
Reflex - reduced ankle reflex
Positive sciatic nerve stretch test
what imaging is done for disc prolapse?
MRI spine
what is the conservative management of disc prolapse?
Continue with life but restrict painful activity
Physio
Analgesia - 1 - NSAIDs
1 - amitriptyline for radiculopathy
what are 3 indications for surgery in disc prolapse?
Cauda equina syndrome
Progressive neurological weakness
Pain >6 weeks not responding to conservative tx
what surgery can be done for disc prolapse?
Laminectomy and microdiscectomy
Spinal fusion if unstable
what are 5 complications of spinal surgery for disc prolapse?
Re-herniation
Infection - discitis, meningitis, abscess
Injury to adjacent structures
haematoma and spinal compression
Spondylolisthesis
what is Paget’s disease of the bone?
A disease of increased uncontrolled bone turnover thought to be due to excessive osteoclastic resorption followed by increased osteoblastic activity
what are 3 risk factors for Paget’s disease?
FHx
50+
infection
what are the 3 stages of Paget’s disease?
lytic phase - excessive osteoclast activity
mixed osteoclastic and osteoblastic phase - excessive resorption and disorganised bone formation
Sclerotic phase – osteoblast lay down excessive disorganised bone with osteoclasts being less active
what are 5 manifestations of Paget’s disease?
bone pain
growth of bones in face - leontiasis, hearing loss, vision loss
kyphosis
pathological fractures
what disease can cause cotton wool appearance of skull on x-ray?
Paget’s disease - due to osteoclastic activity and sclerotic lesions
what are 3 investigations for Paget’s disease of the bone?
X-ray - osteolytic lesions, fractures, slerotic changes, bone enlargement and deformity
Radionucleotide bone scan
LFTs - raised alk phos
what is the management of Paget’s disease of the bone?
1 - Bisphosphonates - alendronic or zolendronic acid
calcitonin
analgesia
calcium + vitamin D
surgery for severe deformity
what are 4 complications of Paget’s disease of the bone?
Hearing loss - if affecting ossicles/vestibulocochlear nerve
Heart failure - high output due to vascular new bone
osteosarcoma
spinal stenosis and cord compression
what chromosome is the mutation that causes Marfan’s on?
chromosome 15
Affects gene responsible for creating fibrillin - protein fibrillin-1
what is the inheritance pattern of marfans?
autosomal dominant
what are 10 symptoms of Marfan’s?
Tall, long arms, long legs, long nek
long fingers and toes
Pectus carinatum or excavatum
Hypermobility
downward slanting palpebral fissures
crowded teeth
stretch marks
High arched palate
Flat feet
what are 2 ways to test for arachnodactyly?
long fingers
Cross thumb cross palm - thumb crosses opposite edge
Wrap hand around wrist - fingers and thumb overlap
what are 3 cardiac conditions associated with Marfans?
Mitral valve prolapse and regurgitation
Aortic valve prolapse and regurgitations
Aortic aneurysm
what are 5 non-cardiac conditions associated with marfans?
Lens dislocation in eye
joint dislocation
scoliosis
Pneumothorax
GORD
How are people with marfans monitored?
Yearly echo
yearly ophthalmology review
where is type 1 collagen found?
skin, tendons, organs, bones
where is type 2 collagen found?
cartilage
where is type 3 collagen found?
supporting mesh of soft organs
where is type 4 collagen found?
basal lamina (basement membranes)
where is type 5 collagen found?
cells surfaces, hair, placenta
what are the 4 different types of Elhers-Danlos syndrome?
Hypermobile EDS
Classical EDS
Vascular EDS
Kyphoscoliotic EDS
what type of collagen is most affected in EDS?
type III
what is the inheritance pattern for all bar kyphoscoliotc EDS?
Autosomal dominant
what is the inheritance pattern for kyphosoliotic EDS?
autosomal recessive
what is the presentation of hypermobile EDS?
joint pain and hypermobility
Joint dislocation
soft and stretchy skin with stretch marks and easy bruising
Poor wound healing and bleeding
Chronic pain and fatigue
Autonomic dysfunction - POTS
GORD, abdo pain and IBS
Menorrhagia, dysmenorrhoea, PROM, pelvic organ prolapse
TMJ dysfunction
what scoring system is used to assess hypermobility in EDS?
Beighton score
what can be seen in classical EDS?
Stretchy, smooth, velvety skin
Joint hypermobility
joint pain
abnormal wound healing
Prone to hernia, prolapses, mitral regurg, aortic root dilation
what can be seen in kyphoscoliotic EDS?
hypotonia as a neonate
kyphoscoliosis as they grow
Joint hypermobility
joint dislocation
what is antiphospholipid syndrome?
antiphospholipid antibodies which cause clinical features characterised by thromboses and pregnancy related morbidity
what other condition is antiphospholipid syndome associated with?
SLE in 20-30% of cases
what sex is antiphospholipid syndrome more common in?
females
what are 4 signs of antiphospholipid syndrome?
CLOTs
Coagulation defects
Livedo reticularis - lace lie purple discolouration of skin
Obstetric issues - miscarriage
Thrombocytopenia
what are 3 investigations of antiphospholipid syndrome?
anticardiolipin test - IgG or IgM antibodies
lupus anticoagulant test
Anti-B2-glycoprotein test
what is the management of antiphospholipid syndrome?
warfarin
pregnancy - aspirin and SC heparin
what is the Z score?
bone density compared to average for their age and gender
what drug class is allopurinol and what is its MOA?
Xanthine oxidase inhibitor
Xanthine oxidase metabolises xanthine into uric acid => inhibits metabolism so therefore lowers plasma uric acid
where is hidden psoriasis found?
genitals
soles
scalp
ears
what is the name of 1 bisphosphonate?
Alendronate
how do you take bisphosphonates?
take on empty stomach once a week and remain upright for at least half an hour afterwards
What are the bloods like in Paget’s disease?
ALP - high
Calcium - normal
Phosphate - normal
what is the 1st line treatment of Paget’s disease?
bisphosphonates - alendronate
what are 3 complications of Paget’s disease?
osteosarcoma
leontiasis
fractures
what are 5 of the diagnostic criteria for giant cell arteritis?
50+
temporal artery abnormality
abnormal temoral artery biopsy
elevated ESR
what is the name of the blotchy skin pattern in antiphospholipid syndrome?
Livedo reticularis
what disease can antiphospholipid syndrome be mistaken for due to positive antibody test?
Syphilis
what reflex comes from S1?
Ankle jerk
what is Sjogren’s syndrome?
autoimmune disorder of diminished lacrimal and slivery gland secretions
presents with fatigue, dry eyes, dry mouth, dry vagina
what antibodies are in sjogren’s syndrome?
anti-Ro (SS-A) - more sensitive
anti-La (SS-B) - more specific
rheumatoid factor
ANA
what are conditions associated with secondary Sjögren’s syndrome?
rheumatoid arthritis
SLE
what is a key eponymous test for sjorgren’s syndrome and what is it?
Schirmer’s test
filter paper placed in corner of eye to measure secretions <10mm is significant
what is the treatment for Sjögren’s syndrome?
1 - artificial tears (polyvinyl alcohol and carbomer), salivary substitutes, vaginal lubricant
Pilocarpine - stimulates tear and saliva production
Hydroxychloroquine is associated joint pain
what are 3 complications of Sjögren’s syndrome?
Eye - keratoconjuctivitis sicca and corneal ulcers
oral- dental cavities, candida
vagina - candida, sexual dysfunction
what cancer does Sjögren’s syndrome increase risk of?
non-Hodgkin’s lymphoma 5x normal population
what are the 5 extra-articular manifestations of AS?
5 As
Anterior uveitis
Autoimmune bowel disease
Apical lung fibrosis
Aortic regurgitation
Amyloidosis
what test is used to determine spinal motility?
Schober’s test
find L5 and make mark 10cm above, ask patient to bend over as far as possible and mark 5cm below L5 => if distance between 2 marks <20cm =. reduced lumbar movement
what is a compound fracture?
open fracture where skin is broken and bone exposed to air
what is a stable fracture?
when section of bone remains in alignment at the fracture
what is a salter-harris fracture?
a fracture occurring in children which affects the growth plate. Classified from 1-5
what is a transverse fracture?
break in bone perpendicular to long axis (across bone)
what is an oblique fracture?
a break diagonally across the width of the bone along the longitudinal axis
what usually causes a spiral fracture?
twisting motion
what is a spiral fracture?
fracture that wraps around bone
what is a comminuted fracture?
breaking into multiple fragments
what is a segmental fracture?
when a bone breaks in at least 2 places separating a segment of bone
what is a greenstick fracture?
where a fracture occurs only on one side of the bone an does not go all the way through - happens in children <10 usually
what is a buckle fracture?
force on one end of the bone makes the side of the bone bulge out sideways without breaking the bone all the way through - usually in children <10 years
what is cole’s fracture?
transverse fracture of distal radius near wrist causing distal portion to displace posteriorly
Usually caused by a fall on to out stretched hands
causes dinner fork deformity - swan neck bendy wrist
what is a smith’s fracture?
volar angulation of distal radius fragment - garden spade deformity
caused by falling backwards onto palm of outstretched hand or falling with wrists flexed
what is a bennett’s fracture?
Intra-articular fracture at base of thumb metacarpal
impact on flexed metacarpal - fist fight
X-ray - triangular fragment at base of metacarpal
what is a monteggia’s fracture?
dislocation of proximal radioulnar joint in association with ulnar fracture
fall on outstretched hand with forced pronation
what is a galeazzi fracture?
radial shaft fraction with associated dislocation of distal radioulnar joint
fall onto hand with rotation force
X-ray - displaced fracture of radium and prominent ulnar head due to dislocation
what is a barton’s fracture?
distal radius fracture (coles/smiths) with associated radiocarpal dislocation
fall onto extended pronated wrist
what is a key sign of scaphoid fracture?
tenderness in the anatomical snuff box
what is a key complication of a scaphoid fracture?
avascular necrosis and non-union of the scaphoid as there is retrograde blood supply to the scaphoid
what system can be used to classify lateral melleolus (distal fibula) ankle fractures?
Weber classification
what is Weber type a fracture?
fracture below level of ankle joint - syndesmosis intact
what is Weber type B fracture?
fracture at level of ankle joint - syndesmosis intact or partially torn
what is Weber type c fracture?
above ankle joint - syndemosis will be disrupted
what are 5 common cancers that metastasise to bone?
PoRTaBLe
Prostate
Renal
Thyroid
Breast
Lung
what are 4 adverse effects of bisphosphonates?
Acid reflux and oesophageal erosions
Atypical Fractures
Osteonecrosis of the jaw
Osteonecrosis of external auditory canal
what is 1st principle of fracture management?
mechanical alignment - either closed reduction via manipulation of the limb or open reduction with surgery
what is the 2nd principle of fracture management?
provide relative stability to allow healing to occur via fixation
what are 6 different types of fracture fixation devices?
external casts
K wires
Intramedullary wires
intramedullary nails
screws
plate and screws
what is the ottawa ankle rules?
assessment of whether an ankle Xray is indicated in ankle injury
what are the 4 tenderness points in the ottawa ankle rules?
Posterior edge/tip of lateral malleolus (6cm above malleolus) tender
Posterior edge or tip of medial malleolus (and 6cm above) tender
Tenderness at base of 5th metatarsal
Navicular tenderness
what is the component of the ottawa ankle rules about weight bearing?
inability to bear weight both immediately after injury and in ED - able to take <4 steps => X ray indicated
what are 11 long term complications of fractures?
delayed union
malunion
non-union
avascular necrosis
infection
joint instability
joint stiffness
contractures
arthritis
chronic pain
complex regional pain syndrome
what is a fat embolism and when do they occur?
occur following fracture of long bone - fat globules released into circulation from fracture leading to reduction in circulation to tissues
mortality 10% - supportive management
what is Gurd’s criteria and what is it for?
Diagnosis of fat embolism
3 Major criteria
- Resp distress
- Petichial rash
- Cerebral involvement
Some minor
- jaundice
- thrombocytopenia
- fever
- tachy
what arteries supply the head of the femur?
medial and lateral circumflex femoral arteries
branches off deep femoral artery
supplies retrograde blood supply to femoral head
what is an intra-capsular hip fracture?
fracture of femoral neck within capsule of hip joint, proximal to intertrochanteric line
what is the classfication system of intra-capsular NOF fractures?
Garden classification
what is the garden classification from grade I-IV?
I - incomplete fracture and non-displaced
II - complete fracture and non-displaced
III - partial displacement
IV - full displacement
what is the possible management of a garden grade I or II NOF fractures?
internal fixation to hold femoral head if blood supply intact
what is the management of garden grade III or IV NOF fractures?
Hemiarthroplasty or total hip replacement (for more fit patients)
what is the management of intertrochanteric fractures?
dynamic hip screw (sliding hip screw
what is the management of subtrochanteric fractures?
Intramedullar nail - metal pole inserted through greater trochanter into the central cavity of the shaft of the femur
what is the typical presentation of hip fracture? 3
pain in groin or hip which may radiate to knee
unable to weight bear
shorted abducted externally rotated leg
what is shenton’s line?
continuous curving line on x-ray of inferior border of superior pubic ramus and medial border of femoral neck
disruption of shenton’s line is key sign in NOF fracture
How quickly should hip fracture surgery be carried out?
within 48 hours
How quickly should open fractures be debrided and washed out?
within 6 hours
what are 5 presentations of rib fracture?
Severe, sharp chest wall pain worse on deep inspiration or coughing
chest wall tenderness and bruising
auscultation - crackles, reduced breath sounds
reduced O2 sats due to lung injury
pneumothorax
what causes flail chest?
two or more rib fractures along 3+ consecutive ribs usually anteriorly
what is a sign of flail chest?
paradoxical breathing
what is the gold standard investigation of rib fracture?
CT chest
what is the management of rib fractures?
1 - conservative with good analgesia so breathing is not affected by pain
2 - if after 12 weeks of conservative management has failed surgical fixation can be considered to manage pain
what grading system can be used to grade open fractures?
Gustilo and anderson system
what is the management of buckle fractures?
typically self limiting so do not require surgery and can sometimes be managed with splining and immobilisation
what is the management of patellar fracture?
non-operative management usually with a hinged knee brace for 6 weeks and full weight bearing
what is a colle’s fracture?
Clasically after FOOSH
Distal radius fracture with dorsal displacement of fragments
Dinner fork type deformity
what are early complication of colles fracture?
median nerve injury - carpal tunnel - weakness or loss of thumb or index finger flexion
compartment syndrome
vascular compromise
malunion
rupture of extensor pollicis longus tendon
what is the blood supply to the scaphoid?
dorsal carpa branch of radial artery - retrograde supply
what is the typical presentation of scaphoid fracture?
pain along radial aspect of wrist at the base of thumb
loss of grip/pinch strength
what are 5 signs of scaphoid fracture?
Maximal tenderness in anatomical snuffbox
Wrist joint effusion
Pain on thumb telescoping (longitudinal compression)
Tenderness of scaphoid tubercle
Pain on ulnar deviation of wrist
what is the initial management of scaphoid fracture?
Futuro splint or standard below elbow backslab immobilisation
Reereal to ortho - review 7-10 days later if Xray inconclusive
what is the ortho management of scaphoid fracture?
undisplaced - cast for 6-8 weeks
displaced - surgical fixation
proximal scaphoid pole fractures - surgical fixation
what is bennett’s fracture?
boxers fracture
intraarticular fracture of 1st carpometacarpal joint
xray - triangular fragment at ulnar base of metacarpal
what is monteggia’s fracture?
dislocation of proximal radioulnar joint + ulnar fracture
fall on out stretched hand with forced pronation
what usually causes 5th metatarsal fractures?
following inversion injuries of ankle - proximal avulsion fractures - most common
Jones fractures - ransverse fracture at metaphyseal diaphyseal junction
what is a toddlers fracture?
oblique tibial fracture in infants
Why do NSAIDs cause HTN?
inhibit prostaglandins which cause vasodilation leading to vasoconstriction
Use with caution in Hx of HTN
How are he hand joints usually affected in OA?
usually CMC and DIP joints more affected than PIP joints, usually affects one joint at a time bilaterally over time
what are 2 risk factors for developing polymyalgia rheumatica?
50+ years - peak 70-80
Female
what other condition is polymyalgia rheumatica associated with?
Giant cell arteritis
what is the clinical presentation of polymyalgia rheumatica ?
2-6 week Hx of
Shoulder / Pelvic girdle / Neck pain and stiffness >45 mins, worse in morning
Systemic symptoms - low grade fever, fatigue, anorexia, wt loss, depression
when should patients with polymyalgia rheumatica be referred?
<60 years
Red flads - Wt loss, night pain, neuro features
Unusual features of PMR
what investigations should be done for polymyalgia rheumatica ?
Clinical diagnosis but…
Bloods
- FBC
- U+E
- LFTs
- Calcium
- Serum protein electophoresis
- TSH
- CK
- Rheumatoid factor
- Urine dip
what is the managemet of polymyalgia rheumatica ?
15mg Prednisone PO OD
Reducing regime
- Until symptoms fully controlled
taper 12.5mg for 3 weeks, 10mg 4-6 weeks, reducing 1mg every 4-8 weeks
Usually on prednisolone for 1-2 years
what is the management of patients on long term steroids?
Don’t STOP
Don’t - don’t stop if >3 weeks steroid treatment, may precipitate adrenal crisis
Sick day rules - usually double dose
Treatment card - patient should carry
Osteoporosis prevention - bisphosphonates, calcium vitamin D
Protom pump inhibitors - gastroprotection
what might be used 2nd line in secondary care for polymyalgia rheumatica?
DMARD treatment - methotrexate
3 - Tocilizumab
what are 3 complications of polymyalgia rheumatica ?
Relapse
Corticosteroid risks - osteoporosis, infection, T2DM, HTN etc
GCA
what are 7 risks of long term corticosteroids?
Osteoporosis
increased risk of infection
T2DM
Hypertension
Cataracts
Glaucoma
Skin changes - thinning, bruising
what are 5 differentials for polymyalgia rheumatica?
Degenerative disorders and osteoarthritis
Thyroid/parathyroid disorders
Inflammatory disorders
Cancer - multiple myeloma, leukaemia, lymphoma, lung cancer
Drug related - myositis or myalgiaa due to statins
what are Bursae?
Sacs created by synovial membrane filled with small amounts of synovial fluid
Found at bony prominences to reduce friction between bones and soft tissue during movement
what are 6 risk factors for trochanteric bursitis?
Female
Trauma
Overuse/posture
Co-morbidities - lower back pain, prev surgery, osteoarthritis
Lifestyle - inactivity, obesity
what is the other name for trochanteric bursitis?
greater trochanter pain syndrome
what are 5 presentations of trochanteric bursitis?
Chronic, intermittent lateral hip/thigh/buttock pain
Exacerbated by weight bearing and lying on affected side
Pain on palpation
Trendelenburg test postive
what 2 investigations can be used in trochanteric bursitis?
US hip
MRI Hip
what is the trendelenburg test?
Pain on resisted abduction of high, resisted internal and external rotation of hip
Patient stands on affected leg and other side of pelvis drops due to weakness in hips
what is the management of trochanteric bursitis?
Lifestyle - wt loss, avoidance of excessive hip adduction
Physio for gluteal muscle strengthening
Rest
Analgesia - paracetamol or NSAIDs
Peri-trochanteric corticosteroid injections
can take 6-9 months to recover
what are 7 common locations for bursitis?
prepatellar
infrapatella
anserine
plecranon
trochanteric
subacromial
retrocalcaneal
what are 3 clinical features of olecranon bursitis?
Swelling over olecranon process - posterior aspect of elbow
tenderness in full flexion
erythema
why is tenderness at the base of the 5th metatarsal significant in ankle sprain?
Could indicate a jones fracture - transverse fracture at base of 5th metatarsal
what is the management of ankle sprains?
RICE
rest, ice, compress, elevate
Orthosis, cast or crutches may be necessary for short term relief
what does the Achilles tendon connect?
connects gastrocnemius to soleus
what are the 2 different type of Achilles tendinopathy?
insertion tendinopathy
mid-portion tendinopathy
what are 5 risk factors for Achilles tendinopathy?
Sports - basketball, tennis, athletics
Inflammatory conditions
Diabetes
Raised cholesterol
Fluoroquinolone antibiotics - ciprofloxacin, levofloxacin
what are 5 presentations of Achilles tendinopathy?
Pain or aching in Achilles
stiffness
tenderness
swelling
nodularity on palpation of tendon
what is the presentation of Achilles tendon rupture?
large pain in achilles, calf or ankle following an audible pop in ankle
Inability to walk or continue sport
Wwelling in calf
Weakness on plantarflexion
Unable to stand on tiptoes
what is simmonds triad?
for Achilles rupture
Abnormal angle of declination - greater dorsiflexion of injured ankle and food
Palpation - Feel for gap in tendon
Calf squeeze test
what is the Simmons calf squeeze test?
patient prone or kneeling with feet hanging freely off bench/couch
Squeezing calf muscle does not cause plantar flexion as it should
what investigation is used for Achilles tendon rupture?
Ultrasound
what is the surgical management of Achilles rupture?
surgical reattachment of Achilles followed by non-surgical management
what is the non-surgical management of Achilles rupture?
boot immobilisation graduating from full plantar flexion poot to neutral position over 6-12 weeks
what are 3 intrinsic risk factors for ACL injury?
Female - due to anatomical, hormonal and neuromuscular differences - wider intercondylar notch
Younger
Genetics
Biomechanical markers
what are 3 extrinsic risk factors for ACL injury?
Sporting activity
Environmental conditions
Ergonomics
where doe s the ACL attach?
At the anterior intercondylar area on tibia
where does the PCL attach?
posterior intercondylar area on tibia
what kind of injury usually causes a ACL injury?
twisting injury
what 2 tests can be done for ACL injury?
Anterior draw test
Lachman test
what is the anterior draw test?
for ACL injury
Patient supine with hips flexed 45 degrees, knees flexed 90 degrees and feet flat on couch
Examiner attempts to pull proximal tibia anteriorly - normally there is slight movement but in ACL injury there will be excessive movement due to instability of ligament
what is the gold standard investigation for dx of cruciate ligament tear?
Arthroscopy
what is the usual 1st line instigation for cruciate ligament injury?
MRI knee
What is the conservative management of cruciate ligament injury?
RICE - rest, ice, compress, elevate
NSAIDs
Crutches and knee brace
physio
what is the surgical management of cruciate ligament injury?
arthroscopic surgery
New ligament is formed from graft using hamstring, quadriceps or bone patellar tendon
what are 5 features of meniscal tear?
pain worse on straightening knee
knee may give way
displaced meniscal tear may cause locking
tenderness along joint line
Thessaly’s test
what is Thessaly’s test?
for meniscal tear
weight bearing at 20 degrees of knee flexion supported by doctor
positive if pain on twisting knee
what is plantar fasciitis?
gradual onset of pain on plantar aspect of heel worse with pressure when standing or walking for prolonged periods
Manged with rest, ice, analgesia, physio
How can ligamentous injury be categorised?
Grade I - mild - minimal fibre damage, no loss of function
Grade II - Moderate - partial tear, some loss of function
Grade III - Severe - complete tear, significant loss of function
what is osgood-schlatter disease?
inflammation of the tibial tuberosity where patella ligament inserts causing anterior knee pain in adolescents - usually unilateral but can be bilateral. causes hard lump at front of knee
Common in 10-15 year olds
what are 3 presentations of osgood-schlatter?
visible or palpable hard tender lump at tibial tuberosity
pain in anterior knee
pain exacerbated by activity, kneeling or extension of knee
what is a complication of osgood-schlatters?
avulsion fracture - tibial tuberosity separated from tibia
what is the management of osgood-schlaters?
reduction in physical activity
ice
NSAIDs
what bacterium causes Lyme disease?
Borrelia burgdoferi
what kind of ticks transmit Lyme disease?
Ixodes
what kind of bacteria is borrelia burgdoferi?
spirochete
what are the early (<30 days) features of Lyme disease? 5
Erythema migrans - bulls-eye rash 1-4 weeks after bite, painless and >5cm usually
Headache
lethargy
fever
arthralgia
what are 5 late (>30 days) features of Lyme disease?
Cardiovascular
- heart block
- Peri/myocarditis
Neuro
- facial nerve palsy
- radicular pain
- meningitis
how is Lyme disease diagnosed?
clinically with erythema migrans
Enzyme linked immunosorbent assay antibodies to borrelia burgdorferi
immunoblot test
what is the management of Lyme disease?
1 - Doxycycline - 200mg OD 21 days - 400mg if neurology
Pregnancy - Amoxicillin - 1g TDS 21 days
Dissenimated disease - Ceftriaxone
what is a complication of treatment of Lyme disease?
Jarisch-herxheimer reaction - fever, rash, tachycardia after 1st dose
more common in syphilis
what are 5 complications of Lyme disease?
neuro - meningitis, encephalomyelitis, encephalopathy
heart block
Oligoarticular arthritis/errosive arthritis
keratitis
what criteria can be used for diagnosis of septic arthritis in children?
Kocher criteria
what is the kocher criteria?
for septic arthritis in children
score for:
non weight bearing
temp >38.5
ESR >40mm/hr
WCC >12
> 2 = 40% septic arthritis
3 = 90% septic arthritis
what are the ottawa knee rules?
for imaging in knee trauma
> 55 years
patella tenderness without other tenderness
fibular head tenderness
cannot flex knee 90 degrees
cannot weight bear - 4 steps
what is the first line investigation for meniscal tear?
MRI knee
what is a baker’s cyst?
fluid filled sack in popliteal fossa due to leak out of knee joint
what are 4 conditions that can be associated with baker’s cyts?
meniscal tears
osteoarthritis
knee injury
inflammatory arthritis
what is the management of symptomatic bakers cysts?
modified activity
analgesia
physio
US aspiration
steroid injection
Surgery
what is an acetabular labral tear?
a tear of the cartilaginous ring surrounding acetabulum usually due to trauma or chronic wear
what are 3 features of acetabular labral tear tear?
Pain - in hip/groin usually worsening
Clicking, locking, giving way of hip
May also cause reduced range of movement
what is the management of acetabular labral tear?
limited efficacy of conservative management
Surgery after 4 weeks - hip arthroscopy with either debridement or repair
what is frozen shoulder?
adhesive capsulitis
Pain and stiffness in shoulder (glenohumeral) joint due to inflammation and fibrosis of joint capsule
what is the typical course of frozen shoulder?
Painful phase - shoulder pain often 1st symptom, may be worse at night
Stiff frozen phase - stiffness in both active and passive movement
Thawing phase - gradual improvement
can take 1-3 years to resolve
what movement is most affected by froze shoulder?
external rotation
what test can be used to assess for supraspinatus tendinopathy?
empty can test - positive if arm gives way on resistance
what test can be used to assess acromioclavicular joint arthritis?
scarf test - pain caused by wrapping arm around chest and opposite shoulder
what is the management of frozen shoulder?
Continued use of arm
Analgesia - NSAIDs
Physio
Intra-articular corticosteroids
Hydrodilation
Surgery if resistant/severe
- manipulation under anaesthesia
- arthroscopy
what are 3 risk factors for frozen shoulder?
diabetes
thyroid dysfunction
hyperlipidaemia
what are the muscles of the rotator cuff?
SITS
Supraspinatus
Infraspinatus
Teres Minor
SUbscapularis
what is the function of the supraspinatus?
Abducts arm before deltoid
Rotator cuff - most commonly injured
what is the function of the infraspinatus?
Externally rotates arm
what is the function of teres minor?
externally rotates arm
what is the function of subscapularis?
internally rotates arm
what is the presentation of a rotator cuff tear?
Either acute onset after injury or gradual onset
Shoulder pain
weakness and pain with specific movements relating to location of tear
Supraspinatus and infraspinatus atrophy in massive tears
what is Gerber’s lift off test?
evaluates subscapularis - internal rotation
Patient attempts to lift hand from small of back against resistance
what test will elicit pain/weakness in the infraspinatus or teres minor tear?
Resisted external rotation
what is the painful arc test used to diagnose?
Subacromial impingement
what are 2 examinations that can be done to test for subacromial impingement?
Neer’s impingement test - anterolateral shoulder pain during forward flexion with arm internally rotated
Hawkin’s test - forced internal rotation of arm held at shoulder height and elbow bent at 90 causes anterolateral shoulder pain
when should patients with shoulder pain be imaged in GP?
Acute trauma presentation
symptoms > 4 weeks
Restriction of movement
severe pain
what imaging can be done of a shoulder in primary care?
Plain film X-ray - True AP and lateral or scapular Y views
When can patients with shoulder pain be referred to secondary care?
Pain >6 weeks of conservative management
Sudden inability to abduct arm - 2ww - suggestive of acute cuff tear
what is the imaging modality for shoulders in secondary care?
MRI
Can also do US
What are 3 possible findings on MRI in shoulder injury?
Hyperintense signal on T2 imaging extending to articular or bursal surfaces
Discontinuity within tendons
Evidence of inflammation - increased fluid in subacromial space and subdeltoid busa, thickening and increased signal of tendons
what is the management of rotator cuff tear?
Mainly conservative in elderly/degenerative tears
- Rest, analgesia, physio
Surgery - arthroscopic rotator cuff repair
what is sublaxation?
partial dislocation
do shoulders more commonly dislocate anterior or posterior?
anterior
what are 3 risk factors for posterior dislocation of the shoulder?
3 Es
electric shock
epilepsy
Ethanol - typically after a fall
what are 5 structures that can be damaged in shoulder dislocation?
Glenoid labrum - rim of cartilage around glenoid cavity that can tear
Hill-sachs lesions - compression fractures of the posterolateral part of humeral head due to impact with the anterior rim of glenoid cavity
Axillary nerve damage
Fractures - humeral head, greater tuberosity of humerus, acromion, col
Rotator cuff
what are bankart lesions?
tear to anterior portion of labrum in shoulder dislocation - occur with recurrent subluxation or dislocation
what does anterior arm dislocation present like?
Arm slightly abducted and externally rotated
Loss of normal rounded appearance to shoulder
may be possible to palpate humeral head below position of coracoid process
what does posterior dislocation present like?
Arm adducted and internally rotated
Posterior shoulder more prominent and anterior shoulder flattened
Inability to externally rotate
what is the 1st line investigation for shoulder dislocation
X-ray:
AP
Lateral/scapular Y view
Axillary view
MRI used to assed other damage
what is the management of shoulder dislocation?
Analgesia and sedation - gas and air may be used
Closed reduction after fractures are excluded
Post reduction x-ray
immobilisation period
surgery for open reduction if closed reduction fails
what are 3 complications of shoulder dislocation?
Shoulder instability
Axillary nerve damage
bankart/hills-sachs lesions
what are 2 clinical features of axillary nerve damage?
Loss of sensation of lateral shoulder - regimental badge area
Weakness of deltoid - weak arm abduction
what nerve roots form the axillary nerve?
C5/6
what is epicondylitis?
inflammation at the point where the tendons of the forearm inset into the epicondyles at the elbow due to repetitive strain - AKA tennis/golfers elbow
what 5 muscles insert onto medial epicondyle and what do they do?
Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor digitorum superficialis
Flexor carpi ulnaris
Flex the wrist
what do the muscles that inset onto the lateral epicondyle do?
extend wrist
what is the other name for lateral epidondylitis?
tennis elbow
what is the presentation of tennis elbow?
Pain over lateral epicondyle, radiating down forearm
can lead to weakness of grip strength
what are 2 tests for tennis elbow?
Mills test - extend and pronate forearm and flex wrist with pressure on lateral epicondyle - pain = +ve
Cozen’s test - extended, pronated forearm with wrist deviated radially - hold elbow and put pressure on lateral epicondyle. Apply resistance to back of hand - pain = +ve
what is the other name for medial epicondylitis?
golfers elbow
what is the management of epicondylitis?
Rest and lifestyle adaption
Analgesia - NSAIDS
physio
orthotics
steroid injection
rarely surgery
what is a t-score for osteoporosis?
<-2.5
what is the t-score for osteopenia?
-1 to -2.5
what is the z-score?
the number of standard deviations the patient is away from the average for their age, sex and ethnicity
what are 5 medications that increase risk osteoporosis?
Corticosteroids (long term 7.5mg+ for 3 months+)
SSRIs
PPIs
antiepileptics
anti-oestrogens
what are 3 chronic diseases that increase risk of osteoporosis?
ckd
hyperthyroidism
rheumatoid arthritis
what are 7 risk factors for osteoporosis?
older age
post menopausal
reduced mobility and activity
lower bmi <19
low calcium or vitamin d
alcohol and smoking
FHx or personal history
what are 5 groups who should be assessed for osteoporosis?
Long term corticosteroids
Prev fragility fractures
>50 with risk factors
Women >65
Men >75
what are 7 lifestyle changes that can help in the management of osteoporosis?
increased exercise
maintain healthy weight
good ca intake
good Vit D intake
avoiding falls
stopping smoking
what is the management of osteoporosis?
Address reversible risk factors
Add calcium (1000mg) and
vitamin D (400-800IU)
1 - Bisphosphonates (alendronate, risendronate, zoledronic acid)
what are 4 side effeccts of bisphosphonates?
reflux and oesophageal erosions
atypical fractures
osteonecrosis of the jaw
osteonecrosis of external auditory canal
how should bisphosphonates be taken?
on an empty stomach
with full glass of water
sit upright for 30 mins
30 mins before moving or eating
what are 4 medications for osteoporosis started by a specialist?
denosumab - MAB targeting osteoclasts
Romosuzumab
Teriparatide - acts as parathyroid hormone
HRT
Raloxifene - selective oestrogen receptor modulator
strontium ranelate
what are 2 side effects of strontium ranelate?
increased VTE risk
increased MI risk
what 2 scores can be used to identify 10 year risk of osteoporotic fracture?
FRAX score
QFracture tool
How do bisphosphonates work?
reduce osteoclastic activity
what are 3 examples of bisphosphonates?
Alendronate (70mg once week)
risedronate (35mg once a week)
Zoledronic acid (5mg once yearly IV)
what are 4 side effects of bisphosphonates?
reflux and oesophageal erosions
atypical fractures
osteonecrosis of the jaw
osteonecrosis of external auditory canal
what follow up is necessary in osteoporosis?
follow up DEXA in 3-5 years
what is T score?
the number of standard deviations the patient is away from an average healthy young adult
what are 9 risk factors for secondary osteoporosis?
Hyperthyroidism
hyperparathyroidism
Hyperandrogenism in males
CKD
Immobility
Vitamin d deficiency
malabsorption
cushings
chronic liver failure
what does DEXA stand for?
Dual-energy X-ray absorptiometry
what are 4 causes of avascular necrosis of the hip?
long term steroid use
chemotherapy
alcohol excess
trauma
what is the imaging modality of choice for avascular necrosis of the hip?
MRI
what system is used to classify spinal fractures?
AO-Magerl system
A - compression
B - Distraction
C - Rotation
what are 5 risk factors for spinal fractures?
osteoporosis
increased Age
Female - post-menopausal
Trauma
Cancer
when is MRI indicated in spinal fractures?
with neurological symptoms
what are 5 complications of spinal fractures?
Neurological deficits
Pulmonary complications - due to reduced mobility
Chronic pain
Kyphosis
VTE
what are ganglion cysts?
sac of synovial fluid originating from tendon sheaths or joints
common on dorsal wrists and fingers but can form anywhere
what is the presentation of ganglion cysts?
visible and palpable non-painful lump
Usually 0.5-5 cm
firm
well circumscribed
transilluminates
what is the management of ganglion cysts?
usually conservative
Needle aspiration surgical excision
have high recurrence rate with aspiration
what nerve is compressed in carpal tunnel syndrome?
median nerve
what sensation is the branch of the median nerve which passes through the carpal tunnel responsible for?
sensory innervation of palmar aspect of thumb, index and middle fingers and lateral half of ring finger
what motor function in the hand is the median nerve responsible for?
Abductor pollicis brevis - thumb abduction
Opponens pollicis - thumb opposition
Flexor pollicis brevis - thumb flexion
Thumb abduction, opposition and flexion
what are 7 risk factors for carpal tunnel syndrome?
repetitive strain
obesity
perimenopause
rheumatoid arthritis
diabetes
acromegaly (bilateral)
hypothyroidism
what is the presentation of carpal tunnel syndrome?
numbness
paraesthesia
burning sensation
pain
shaking hand to relive symptoms
Weakness of thumb movements
weakness of grip
difficulty with fine movements involving the thumb
wasting of thenar muscles
what are 2 tests o/e for carpal tunnel syndrome?
Tinel’s test
Phalen’s test
what questionnaire can be used to diagnose carpal tunnel syndrome?
Kamath and Stothard carpal tunnel questionnaire
what is the 1st line investigation for carpal tunnel syndrome?
nerve conduction studies
what is the management of carpal tunnel syndrome?
1 - 6 weeks conservative management
rest and altered activities
Wrist splints
Steroid injections
surgery - flexor retinaculum division
what is systemic sclerosis?
autoimmune connective tissue disease due to inflammation and fibrosis of connective tissures, skin and internal organs
what are the 2 main patterns of disease in systemic sclerosis?
limited systemic sclerosis
diffuse cutaneous systemic sclerosis
what are 5 features of cutaneous systemic sclerosis?
CREST (used to be called crest syndrome)
Calcinosis
Raynaud’s phenomenon
Esophageal dysmotility
Sclerodactyly
Telangiectasia
how are internal organs affected in diffuse systemic sclerosis?
cardiovascular problems - HTN, coronary artery disease
Lungs - Pulmonary HTN, fibrosis
Renal - scleroderma renal crisis
what is scleroderma?
hardening of skin giving appearance of shiny tight skin without normal skin folds
what is sclerodactyly?
skin tightening around joints restricting ROM, fat pads on fingers are lost and skin can break and ulcerate
what are telangiectasia?
dilated blood vessels in skin >1mm
what is calcinosis?
calcium deposits under skin - most common in fingertips
what is oesophageal dysmotility?
atrophy and dysfunction of smooth muscle and fibrosis of oesophagus - causing swallowing difficulties, chest pain, acid reflux and oesophagitis
what is the most common secondary cause of raynaud’s phenomenon?
systemic sclerosis
can also be seen in SLE
what can be used to differentiate between raynaud’s disease and raynauds phenomenon caused by systemic sclerosis?
Nailfold capillaroscopy - magnify and examine peripheral capillaries at based of fingernail - abnormal capillaries suggest systemic sclerosis
what is the management of raynaud’s disease?
Keep hands warm
Calcium channel blockers - nifedipine
other specialist drugs - losartan, ACEi, Sildenafil, fluoxetine
what are 3 autoantibodies associated with systemic sclerosis?
Antinuclear antibodies (ANA) - non-specific but often +ve
Anti-centromere antibodies - associated with limited cutaneous systemic sclerosis
Anti-scl-70 antibodies - diffuse cutaneous systemic sclerosis
what is the management of systemic sclerosis?
DMARDs - methotrexate
Biologics - rituximab
Avoid smoking
gentle skin stretching for ROM
regular emollients
Avoid cold triggers
Physio
OT
What is takayasu’s arteritis?
Large vessel vasculitis characterised by granulomatous inflammation of aorta and it’s branches
who is takayasu’s arteritis common in?
young females and Asian people
what are 6 presentations of takayasu’s arteritis?
Systemic features - malaise, headache
Unequal BP in upper limbs
Carotid bruit and tenderness
Absent/weak peripheral pulses
Upper and lower limb claudication
Aortic regurgitation
what investigations are used in takayasu’s arteritis?
BP upper and lower limbs
Vascular imaging of arterial tree - CTA or MRA
what is the management of takayasu’s arteritis?
1 - Steroids
Low dose aspirin
2 - immunosuppressives
what is Polyarteritis nodosa?
Vasculitis of medium sized vessels causing necrotising inflammation leading to thrombosis, aneurysm formation and organ ischaemia most commonly renal
who is Polyarteritis nodosa common in?
Middle aged men
Can be idiopathic of often associated with Hep B infection
what are 5 risk factors for Polyarteritis nodosa?
Middle age
Male
Hep B or C
Immunosuppression
Genetic predisposition - associated with familial Mediterranean fever
what is the presentation of Polyarteritis nodosa?
Systemic symptoms - wt loss, fatigue, myalgia, fever
Numbness and paraesthesia, peripheral neuropathy
Renal failure
Vasculitic purpuric rash - livedo reticularis
Digital infarcts
HTN
what is the gold standard investigation for Polyarteritis nodosa?
Biopsy - transmural inflammation with fibrinoid necrosis
what is the management of Polyarteritis nodosa?
1 - High dose prednisolone
Antiviral therapy
ACEi
2 - Cyclophosphamide immunosuppression
For maintenance - azithioprine or methotrexate, corticosteroids
what are 5 complications of Polyarteritis nodosa?
organ damage
haemorrhage
Infections
chronic pain
hypertension
what are 3 ANCA associated vasculitises?
Granulomatosis with polyangiitis (wergner’s granulomatosis)
Eosinophilic granulomatosis with polyangiitis (churg-straus syndrome)
Microscopic polyangiitis
what is Granulomatosis with polyangiitis?
Prev - Wegener’s granulomatosis
Small vessel necrotising vasculitis affecting respiratory tract and kidneys
what is the presentation of Granulomatosis with polyangiitis?
URT - epistaxis, sinusitis, nasal crusting
LRT - SOB, Haemoptysis
Rapidly progressing glomerulonephritis
Saddle shaped nose deformity - ;ate sign due to chronic inflammation and erosion of upper airway
Vasculitis rash, proptosis, cranial nerve lesion
what autoantibody is present in Granulomatosis with polyangiitis?
cANCA
what is the management of Granulomatosis with polyangiitis?
1 - high dose prednisolone
OR
Cyclophosphamide
Maintenance - Azathioprine, methotrexate
what criteria can be used for diagnosis of Granulomatosis with polyangiitis?
ELK (ENT, Lung and kidney presentations)
AND
positive cANCA
what are 6 complications of Granulomatosis with polyangiitis?
AKI
CKD
Lung damage
Scleritis
Mononeuritis multiplex
side effects of long term steroids
what is eosinophilic granulomatosis with polyangiitis?
Prev. Churg-Strauss syndrome
Small-medium vessel vasculitis
what is the presentation of eosinophilic granulomatosis with polyangiitis?
Worsening asthma
Sinusitis pain
Parasthesia or numbness, signs of peripheral neuropathy
Weight loss
vasculitis rash
what are 4 investigations for eosinophilic granulomatosis with polyangiitis?
FBC - for eosinophilia
CXR
Autoantibodies
Biopsy
what autoantibodies are present in eosinophilic granulomatosis with polyangiitis?
pANCA
what is the American college of rheumatology criteria for eosinophilic granulomatosis with polyangiitis?
at least 4/6 of
Asthma
eosinophilia >10%
Mononeuropathy or polyneuropathy
Non-fixed pulmonary infiltrates
paranasal sinus abnormalities
positive biopsy
what is the management of eosinophilic granulomatosis with polyangiitis?
1 - corticosteroids
2 - immunosuppression
what are 4 complications of eosinophilic granulomatosis with polyangiitis?
Long lasting peripheral neuropathy
Severe asthma
heart disease
side effects of long term steroids
what is one medication that can precipitate eosinophilic granulomatosis with polyangiitis?
leukotriene receptor antagonists - montelukast
what is Microscopic polyangiitis?
small vessel necrotising vasculitis typically affecting lungs and kidneys
NON-granulomatous
what autoantibody is in Microscopic polyangiitis?
pANCA - 50-75%
cANCA - 40%
what is seen on renal biopsy in Microscopic polyangiitis?
crescentic glomerulonephritis and small vessel vasculitis
what is the presentation of Microscopic polyangiitis?
renal impairment - raised creatinine, haematuria, proteinuria
fever, lethargy, malaise, wt loss
Rash
Cough, SOB, haemoptysis
what are 4 non-vasculitis conditions that are associated with positive pANCA?
UC
Primary sclerosing cholangitis
anti-GBM disease
Crohn’s
what are myositoses?
autoimmune disorders causing muscle inflammation - polymyositis or dermatomyositis
Can be due to underlying cancers - paraneoplastic
what is the presentation of Polymyositis ?
gradual onset symmetrical proximal muscle weakness
Difficulty standing from chair, climbing stairs, lifting overhead
Muscle pain
NO SKIN FEATURES
Can be raynauds and lung involvement
what autoantibody is associated with Polymyositis ?
Anti-Jo-1 antibodies
AKA - histidine-tRNA ligase
what muscle enzyme is significantly raised in Polymyositis and dermatomyositis?
Creatinine Kinase
what is the management of polymyositis?
1 - High dose prednisolone
2 - immunosuppression - azathioprine, methotrexate
what are 4 skin presentations of Dermatomyositis?
Gottron lesions - scaly erythematous patches on knuckles, elbows, knees
Helitrope rash - purple rash on face and eyelids
Periorbital oedema
Photosensitive erythematous rash on back, shoulders and neck - shawl sign
what are 4 risk factors for Dermatomyositis?
female
40-50 years
Afro-Caribbean
Childhood
what are 2 autoantibodies loosely related to Dermatomyositis?
Anti-Jo - 30%
Anti-M2
what are 5 cancers related to myositis?
Ovarian
Lung
pancreas
stomach
Colon
what is the management of Dermatomyositis?
1 - Prednisolone
exercise and physio
Sun protection
2 - immunosuppression, IVIG, biologics
what is discitis?
inflammation in intervertebral disc space - can lead to sepsis or epidural abscess
what are 3 features of discitis?
back pain
general - pyrexia, rigors, sepsis
Neuro features dependant on level
what is the most common cause of discitis?
S. aureus
what are 2 investigations for discitis?
MRI
CT guided biopsy for sensitivities
what is the management of discitis?
6-8 weeks IV Abx - flucloxacillin, vancomycin
Assess for endocarditis - Transthoracic echo
what are 5 risk factors for discitis?
Age - children more common due to better blood supply
Male
Recent invasive spinal procedure
Immunosuppression
Diabetes
IVDU
what are 7 causes of pathological fracture?
Osteoporosis
CKS-metabolic bone disease
Hyperparathyroidism
Metastatic cancer
Infection
Primary bone tumours
bone biopsies
what system can be used to assess risk of pathological fracture?
Mirels’ scoring system
score >9 = may need prophylactic fixation
what scan can be used for looking for bone metastasis?
bon scintigraphy
what is the mangement of pathological fractures?
orthopaedic stabilisation
radiotherapy or chemotherapy - malignancy
tx osteoporosis
how long can it take for DMARDs to work?
2-3 months
what are 5 notable side effect of leflunomide?
raised BP
rashes
peripheral neuropathy
teratogenic
bone marrow suppresion
how does leflunomide work?
interferes production of pyrimidine used to make RNA and DNA
how does hydroxychloroquine work as an immunosuppressant?
interferes with toll-like receptors disrupting antigen presentation
what are 4 notable side effects of hydroxychloroquine?
nightmares
macular toxicity
liver toxicity
skin pigmentation
what is a notable side effect of sulfasalazine?
male infertility - reduction in sperm count
what is a notable side effect of anti-TNF?
reactivation of TB and hepatitis B
what are 2 notable side effects of rituximab?
night sweats
thrombocytopenia
what is Behcet’s syndrome?
Complex multisystem autoimmune inflammatory disorder of recurrent oral ulcer, genital ulcers and anterior uveitis
what gene is there a link with in behcet’s disease?
HLA-B51
more common in eastern mediterranean people
what are 8 features of behcet’s disease?
Oral ulcers - painful, well circumscribed erosions with red halo - at least 3 episodes in last year
genital ulcers
anterior uveitis
Erythema nososum
Arthritis
thrombophlebitis and DVT
Neuro involvement - aseptic meningitis
GI - Abdo pain, diarrhoea, colitis
what test can be used to assess for Behcet’s disease?
pathergy test
sterile needle makes pin pricks on forearm - r/v in 24-48 hours for erythema, induration (thickening) and non-specific skin hypersensitivity
+ve in Behcet’s disease, sweet’s syndrome or pyoderma gangrenosum
what is the management of Behcet’s disease?
Colchicine - for acute inflammation
Topical/systemic steroids - for acute outbreaks
Immunosuppression - azithioprine, methotrexate, cyclosporine
biologics - infliximab, adalimumab - in refractory cases
what are 5 complications of Behcet’s disease?
Occular - uveitus, retinal vasculitises
Vascular - VTE, vasculitis
Neuro - aseptic meningitis
GI ulcers, perforation
Relapse - relapsing remitting course
what are 7 causes of mechanical back pain?
muscle or ligament sprain
facet joint dysfunction
sacroiliac joint dusfunction
herniated disc
spondylolisthesis - anterior displacement of vertebra
scoliosis
degenerative changes
what are 4 causes of neck pain?
muscle or ligamant strain
torticollis - muscle spasms causing stiff and painful neck
whiplash
cervical spondylosis
what are 5 red flag causes of back pain?
spinal fracture
cauda equina
spinal stenosis
ankylosing spondylitis
spinal infection
what nerves form the sciatic nerve?
L4-S3
how many of each vertebrae are there?
7 cervical
12 thoracic
5 Lumbar
5 sacral (fused)
4 coccyx (fused)
what is the pathway of the sciatic nerve?
exits pelvis through greater sciatic foramen
travels down back of leg to knee
divides into tibial nerve and common peroneal nerve
supplies sensation to lateral lower leg and foot and motor to posterior thigh, lower leg and foot
what are 3 causes of sciatica?
herniated disc
spondylolisthesis
spinal stenosis
what test can be used to assess sciatica?
Sciatic stretch test
patient lies on back with legs straight
examiner lifts leg from ankle with knee extended till maximum hip flexion then dorsiflexes ankle
reproduces sciatica pain indicating nerve root irritation
what tool can be used to assess risk of chronic back pain from an acute presentation?
STarT back screening tool
what is low, medium and high risk in the STarT back screening tool?
Low - total score <3, subscore <3
Medium - total score >3, subscore <3
high - total score >3, subscore >3
what is the management of patients at low risk of chronic back pain presenting with pain?
self management
education
reassurance
analgesia
staying active and mobilising as tolerated
what is the management for patients at medium to high risk of developing chronic back pain presenting with pain?
As with low risk PLUS
physiotherapy
group exercise
CBT
what are 3 options for analgesia in back pain?
1 - NSAIDs - Naproxan, ibuprofen
codeine
benzodiazepine - for muscle spasms - up to 5 days
what anaesthetic technique can be used for lower back pain due to facet joint dysfunction?
radiofrequency denervation
what is the management of sciatica?
Amitriptyline
Duloxitine
what are 4 specialist options for chronic sciatica?
epidural corticosteroid injections
local anaesthetic injections
radiofrequency denervation
spinal decompression
what are 5 red flags for lower back pain?
age <20 or >50
Hx of malignancy
night pain
Hx of trauma
Systemically unwell
cauda equina symptoms
what are the features of L3 nerve root compression?
sensory loss over anteior thigh
weak hip flexion, knee extension, hip adduction
reduced knee reflex
positive femoral stretch test
what are the features of L4 nerve root compression?
sensory loss to anterior aspect on knee and medial malleolus
weak knee extension and hip adduction
reduced knee reflex
positive femoral stretch test
what is the presentation of L5 nerve root compression?
sensory loss over dorsum of foot
weakness in foot and big toes dorsiflexion
reflexes intact
positive sciatic nerve stretch test
what is the presentation of S1 nerve root compression?
sensory loss posteriolateral aspect of leg and lateral aspect of foot
weakness in plantar flexion of foot
reduced ankle reflex
positive sciatic nerve stretch test
what is the femoral stretch test?
patient lies prone
maximal flexion of knee to end range
if no symptoms hip is extended with knee flexed
if pain is felt in posterior thigh, buttocks or lumbar region - +ve
what is classed as acute backpain?
<6 weeks
what is classed as chronic back pain?
> 12 weeks
what are 8 risk factors for back pain?
prev episode
obesity
physically demanding occupation
physical inactivity
psychological distress
other chronic health conditions
lower socio-economic status
smoking
what is the most common level for a prolapsed disc?
L5/S1