Orthopaedics/Rheumatology Flashcards
Compartment syndrome diagnose
Measure intracompartment pressure
Treatment compartment syndrome
Fasciotomy and aggressive IV fluid resus
Septic arthritis cause
Overall - staph aureus
Young sexually active - neisseria gonorrhoea
Septic arthritis diagnose
Synovial fluid sampling
Joint imaging
Septic arthritis treatment
Flucloxacillin
OA signs in hands
Heberdens node (DIP joint) Bouchard node (PIP joint) Squaring base thumb
OA xray features
LOSS:
- loss of joint space
- osteophytes
- subchondral sclerosis
- subchondral cysts
OA treatment
1) Paracetamol and topical NSAID
2) NSAIC/opiods/corticosteroid injections
3) Joint replacement
Osteomyelitis cause
Overall - staph aureus
Sickle cell - salmonella
Osteomyelitis diagnosis
MRI scan
Osteomyelitis treatment
Surgical debridement and fluxlocacillin
Open fracture grading
Gustile and anderson:
1) <1cm
2) >1cm and moderate soft tissue damage
3) >1cm and extensive soft tissue damage
Open fracture treatment
ABCDE
Imaging
Cover with dressing
Early debridement
Common causes pathological fracture
Prostate Breast Lung Renal Thyroid
Common location pathological fracture
Femur
Vertebral bodies
Treatment olecranon bursitis
RICE
Analgesia
Aspiration fluid
Antibiotics if infection
Identify osteosarcoma
Children/teens
Metaphyseal region long bones
Identify Ewing sarcoma
Children/teens
Pelvis and long bones
“onion skin”
Identify chrondosarcoma
Middle aged
Axial
Most common malignant bone tumour
Osteosarcoma
Most common benign bone tumour
Oseochrondroma
Treatment carpal tunnel
1) 6w conservative - wrist splint at night and joint injection
2) Flexor retiniculum division
Most common shoulder dislocation
Anterior
Identify anterior shoulder dislocation
External rotation and abduction
Identify posterior shoulder dislocation
Electric shock/seizure
Light bulb sign
Treatment shoulder dislocation acute
Open/closed reduction
Analgesia
Sling for immobilisation
Identify de quervain tenosynovitis
Pain radial side wrist
Pain over styloid process
Positive finkelstein test
What is de quervains tenosynovitis
Inflammation of sheath containing extensor pollicis brevis and abductor pollicis
Commonly affected by dupuytrens contracture
Ring and little finger
Identify subluxation radial head
Elbow pain
Limited supination and extension elbow
Identify adhesive capsulitis (AKA frozen shoulder)
Associated diabetes
Develops over few days:
- external rotation affected most
- active and passive movement affected
Phases:
- painful freezing phase then adhesive phase then recovery
Rotator cuff injuries - action each muscle
Supraspinatus (most common) - abduction
Infraspinatus - external rotation
Tere minor - external rotation and adduction
Subscapularis - adduction
Identify rotator cuff injuries
Symptoms worse when shoulder in abduction
Painful arc
Identify trigger finger
Initial stiffness, snapping when extending
Palpable nodule
Features malignant soft tissue tumour
Size >5cm
Pain
Deep
Colles fracture
Fall onto outstretched hand
Transverse fracture of distal radius - dorsally displaced distal fragment (dinner fork deformity)
Smiths fracture
Fall onto outstretched hand
Transverse fracture of distal radius - volar displacement distal fragement (garden spade deformity)
Bartons fracture
Fall onto extended and pronated wrist
Colles or smith with radiocarpal dislocation
Montagia fracture
Fall onto outstetched hand with forced pronation
Ulna fracture with dislocation of proximal radioulna joint
Galleizi fracture
Fall onto outstretched hand with rotational force
Radial shaft fracture with dislocated radioulnar joint
Bennets fracture
Fist fight
Base on thumb metacarpal
Identify scaphoid fracture
Fall onto outstretched hand
Pain along radial aspect wrist
Pain pushing pulling thumb
Tenderness anatomical snuffbox
Treatment scaphoid fracture
Immobilisation with futuro splint and refer
Undisplaced - cast 6-8w
Displaced or proximal - surgical fixation
Identify achilles tendinopathy
Posterior heal pain, gradual onset, worse with activity
Morning stiffness
Simmonds triad for achilles tendon rupture
> dorsiflexion of foot
Gap in tendon
Calf squeeze causes no movement
Diagnose achilles tendon rupture
US to diagnose
Identify lateral ankle ligament sprain
Inversion injury
Pain and swelling over ligament
Able to weight bear
Treatment lateral ankle ligament sprain
RICE
Maybe orthososis
Identify medial ankle ligament sprain
Eversion injury
Weight bearing painful
Hopkins squeeze test positive (pain when tibia and fibula pushed together)
Treatment medial ankle ligament sprain
No diastasis - non weight bearing orthostasis
Diastasis - Operative fixation
Most common injured knee ligament
Ruptured anterior cruciate
Identify anterior cruciate rupture
Sudden twisting or lateral blow
Sudden popping sound
Identify posterior cruciate rupture
Hyperextension injuries - dashboard
Investigation knee ligament rupture
MRI
Identify meniscal tear
Twisting injury
Pain worse on straightening knee
Tender over joint line
Identify chrondomalacia patellae
Teenage girls following injury
Pain on going downwards
Identify posterior and anterior hip dislocation
Posterior (most common) - shortenned, adducted and internally rotated
Anterior - abducted and externally rotated, no shortening
Treatment hip dislocation
ABCDE
Analgesia
Reduction under GA
Physiotherapy
Identify plantar fasciitis
Heel pain
Identify mortons neuroma
Forefoot pain - most common third intertarsalphalangeal space
Identify hallux valgus
Progressive foot deformity - subluxation 1st metatarsophalangeal joint
Abduction first metatarsal, adduction phalanges
Leg in hip fracture
Shortened, abducted and externally rotated
Not able to weight bear
Diagnosis hip fracture
1) Xray - disrupted shellon line
2) MRI - CT
Intracapsular hip fracture treatment
Undisplaced - internal fixation
Displaced - hip replacement
Extracapsular hip fracture treatment
Stable intertrochanteric - dynamic hip screw
Unstable/subtrochanteric - intramedullary nail
Classification hip fracture
Gardens:
1) Stable
2) Complete but undisplaced
3) Displaced but still bone contact
4) Complete bony disruption
Ankle facture classification
Webers:
A) below ankle joint, syndesmosis in tact
B) level ankle joint, syndesmosis in tact or partially disrupted
C) above ankle joint, syndesmosis disrupted
Ottowa rules
For ankle xray:
- pain malleolus region and one of
- bony tenderness lateral or medial malleolus to 6cm superior
- cannot walk >4 weight beared steps
- bony tenderness lateral or medial malleolus to 6cm superior
Weber A treatment
CAM boot
Weber B treatment
Displaced - surgery
Stable - CAM boot
Weber C treatment
Surgery
Most common site stress fracture
2nd metatarsal
Most common metatarsal fracture
5th metatarsal - assocaied with lateral ankle sprain
Cauda equina diagnosis
MRI
Identify lumbar spinal stenosis
Back pain relieved by sitting/learning forwards
Diagnose lumbar spinal stenosis
MRI
Treatment lumbar spinal stensosis
Laminectomy
Identify Erb palsy
C5/6 damage
Winged scapula
Waiter tip
Identify klumpkes palsy
T1 damage
Loss intrinsic hand muscles
Diagnose iliopsoas abscess
CT abdomen
Froments sign of
Ulner nerve palsy
Identify osteochondritis dissecans
Usually children/young adults
Knee pain and swelling typically after exercise
Knee locking
Mechanism axillary nerve damage
Humeral neck fracture/dislocation
Radial nerve damage mechanism
Humeral midshaft fracture
Ulner nerve damage mechanism
Medial epicondyle fracture
Toddlers fracture
Oblique tibial in infants
Plastic deformity
Stress on bone causing deformity without cortical disruption
Greenstick fracture
Unilateral cortical breech
Buckle fracture
Incomplete cortical disruption
Identify talipes equinovarus
AKA clubfoot - inverted and plantar flexed foot
Treatment clubfoot
Manipulation and progressive casting from birth
Action and mechanism injury femoral nerve
Action - knee extension and hip flexion
Mechanism - hip fracture
Action and mechanism injury obturator nerve
Action - thigh adduction
Mechanism - anterior hip dislocation
Action and mechanism injury common peroneal nerve
Action - foot dorsiflexion and eversion
Mechanism - injury neck fibul
Action and mechanism injury tibial nerve
Action - plantarflexion and inversion
Mechanism - posterior knee dislocation
Action and mechanism superior gluteal nerve injury
Action - hip abduction
Mechanism - Pelvic fracture
Deposition in gout
Monosodium urate
Diagnosis gout
Synovial fluid - needle shaped negative monosodium urate crystals
Treatment acute gout
1) NSAID or colchine
2) Prednisolone
Prophylaxis gout
Allopurinol - add NSAID/colchine for first 6m
Pseudogout deposition
Calcium pyrophosphate crystals
Diagnosis pseudogout
Joint aspiration - weakly positive rhomboid crystals
Xray - chondrocalcinosis
Seronegative arthritis gene
HLA B27
Systemic features ankylosing spondylitis
The As:
- anterior uveritis
- apical fibrosis
- aortic regurgitation
- achilles tendonitis
- AV node block
Diagnosis ankylosing spondylitis
1) xray
2) MRI
Xray features ankylosing spondylitis
Squaring lumbar vertebra
Sacroiliatis
Syndesmophytes
Treatment ankylosing spondylitis
1) NSAID, regular exercise and physio
2) Different NSAID
3) Anti-TNF therapy
Identify psoriatic arthritis
Onycholysis (seperation nail from bed)
Dactylitis (inflammation full finger)
Nail pitting
Plaque psoriasis
Xray features psoriatic arthritis
“Pencil in cup”
Osteolysis
Treatment psoratic arthritis
Similar RA
Treatment reactive arthritis
1) NSAID
2) Joint injection
3) Sulfasalazine and methotrexate
RA genes
HLA DR4
HLA DR1
Antibodies RA
Cyclic citrullinated peptide (anti-CCP) - most sensitive and specific Rheumatoid factor (RF)
Identify RA
Never affects DIP
Symetrical
RA signs in hands
Z shaped deformity Ulnar deviation MCP (knuckle) Swan neck ( extension PIP, flexed DIP) and boutenniers deformity (flexed PIP, extended DIP) late
Diagnosis RA
Clinical but:
- RF if CCP negative
- xray
- joint aspiration
- inflammatory markers
RA xray changes
Early:
- juxtraarticular osteoporosis
Late:
- periarticular erosion
- subluxation
RA check response to treatment
DAS28 score
HAQ
Treatment flares RA
Corticosteroids
Treatment long term RA
DMARDs:
1) Methotrexate, leftunonide or sulfasalazine
2) 2 in combination
3) Methotrexate + biologic therapy (usually TNF)
4) Plus rituximab
Identify felty syndrome
RA + splenomegaly + decreased WCC
Cancer linked to Sjorens
Lymphoid malignancy
Antibodies Sjorens
anti-Ro/anti-La
RF/ANA
Treatment Sjorens
Artificial tears
Pilocarpine - saliva production
SLE antibody
Anti-nuclear most sensitive but not specific
Anti-dsDNA most specific
Monitoring SLE
ESR used, CRP may be normal
Complement C3,C4
Treatment acute flare SLE
1) NSAID
2) Consider prednisolone/cyclophosphamide if internal organ involvement
Treatment long term SLE
Hydroxychloroquine
Identify polymyositis
Symetrical proximal weakness
Raynauds
Lung disease
Identify dermatomyositis
Polymyositis + gottron lesions and skin involvement
Identify CREST syndrome
Oesophageal problems and sclerosis features - Limited systemic sclerosis
Calcinosis Raynaud’s Oesophageal dysmotility Sclerodactyly Telangiectasia
Antibodies systemic sclerosis
Diffuse - anti-scl-70
Limited - anti-centromere
Identify polymyalgia rheumatica from investigation
Diagnosis of exclusion
CK normal, ESR raised
Treatment polymyalgia rheumatica
Prednisolone - if no effect consider other diagnosis
Treatment fibromyalgia
CBT and neuropathic analgesia
Osteomalacia bloods
Decreased vit D
Decreased calcium
Decreased phosphate
Increased ALP
Pagets blood
isolated rise ALP
Pagets most common bones
Skull
Spine/pelvis
Long bones
Treatment pagets
Bisphosphonates
Treatment osteoporosis
1) Bisphosphonates
2) Denosumab, strantium randate, raloxifene, HRT
Everyone lifestyle, vit D and calcium
Antiphospholipid syndrome bloods
Thrombocytopenia
Prolonged APTT
Treatment antiphospholipid syndrome
Primary - low dose aspirin
Secondary - warfarin
Osteopetrosis bone profile
All normal
CKD bone profile
Ca decreased
PTH increased
Phosphate increased
ALP increased
Primary hyperparathyroidism bone profile
Ca increased
PTH increased
ALP increased
PTH increased
Time to diagnose chronic fatigue syndrome
4m
Ig to pass to foetal circulation
IgG
First Ig to be made in response
IgM
Predominent Ig in breast milk
IgA
Identify osteogenesis imperfecta
Childhood
Following trauma, blue sclera
Bone profile normal
AKA brittle bone disease