Rheumatology Flashcards

1
Q

What type of joints are affected in osteoarthritis?

A

Synovial

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2
Q

What are 4 risk factors for osteoarthritis

A

obesity, age, occupation, trauma, being female and family history

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3
Q

What are the most commonly affected joints in osteoarthritis?

A

Hips
Knees
Distal interphalangeal (DIP) joints in the hands
Carpometacarpal (CMC) joint at the base of the thumb
Lumbar spine
Cervical spine (cervical spondylosis)

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4
Q

What x-ray changes may be present in osteoarthritis?

A

L – Loss of joint space
O – Osteophytes (bone spurs)
S – Subarticular sclerosis (increased density of the bone along the joint line)
S – Subchondral cysts (fluid-filled holes in the bone)

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5
Q

what are some general signs of osteoarthritis?

A

Bulky, bony enlargement of the joint
Restricted range of motion
Crepitus on movement
Effusions (fluid) around the joint

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6
Q

What are some hand signs seen in osteoarthritis

A

Heberden’s nodes (in the DIP joints)
Bouchard’s nodes (in the PIP joints)
Squaring at the base of the thumb (CMC joint)
Weak grip
Reduced range of motion

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7
Q

NICE guidelines state that a diagnosis of osteoarthritis can be made without any investigations if what?

A

the patient is over 45, has typical pain associated with activity and has no morning stiffness (or stiffness lasting under 30 minutes)

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8
Q

What are 3 non-pharmacological management options for osteoarthritis

A

exercise
weight loss
occupational therapy

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9
Q

What are the pharmacological management options for osteoarthritis?

A

Topical NSAIDs first-line for knee osteoarthritis
Oral NSAIDs where required and suitable (co-prescribed with a proton pump inhibitor for gastroprotection)

Weak opiates and paracetamol are only recommended for short-term, infrequent use.

Intra-articular steroid injections
Joint replacement

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10
Q

How would you describe the pattern of arthritis in rheumatoid arthritis?

A

symmetrical polyarthritis

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11
Q

What are 4 risk factors for rheumatoid arthritis

A

female
smoking
obesity
family history

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12
Q

What is the most common gene associated with rheumatoid arthritis?

A

HLA DR4

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13
Q

What antibodies can be present in rheumatoid arthritis?

A

Rheumatoid factor (present in 70%)
anti-CCP antibodies (more sensitive + specific, in 80%)

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14
Q

What 3 joint symptoms are present in rheumatoid arthritis?

A

Pain
Stiffness
Swelling

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15
Q

What are the most commonly affected joints in rheumatoid arthritis

A

Metacarpophalangeal (MCP) joints
Proximal interphalangeal (PIP) joints
Wrist
Metatarsophalangeal (MTP) joints (in the foot)

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16
Q

What are some associated systemic symptoms of rheumatoid arthritis?

A

Fatigue
Weight loss
Flu-like illness
Muscles aches and weakness

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17
Q

What is palindromic rheumatism

A

self-limiting episodes of inflammatory arthritis, with pain, stiffness and swelling typically affecting only a few joints. The symptoms last days, then completely resolve. Joints appear normal between episodes. Rheumatoid factor or anti-CCP antibodies may indicate that it will progress to rheumatoid arthritis.

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18
Q

What are some hand signs in advanced rheumatoid arthritis ?

A

Z-shaped deformity to the thumb
Swan neck deformity (hyperextended PIP and flexed DIP)
Boutonniere deformity (hyperextended DIP and flexed PIP)
Ulnar deviation of the fingers at the MCP joints

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19
Q

What is Atlantoaxial subluxation

A

Synovitis and damage to the ligaments around the odontoid peg of the axis (C2) allow it to shift within the atlas (C1). Subluxation can cause spinal cord compression and is an emergency.

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20
Q

What are some extra-articular manifestations of rheumatoid arthritis

A

Pulmonary fibrosis
Felty’s syndrome (a triad of rheumatoid arthritis, neutropenia and splenomegaly)
Sjögren’s syndrome (with dry eyes and dry mouth)
Anaemia of chronic disease
Cardiovascular disease
Eye manifestations
Rheumatoid nodules (firm, painless lumps under the skin, typically on the elbows and fingers)
Lymphadenopathy
Carpel tunnel syndrome
Amyloidosis
Bronchiolitis obliterans (small airway destruction and airflow obstruction in the lungs)
Caplan syndrome (pulmonary nodules in patients with rheumatoid arthritis exposed to coal, silica or asbestos dust)

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21
Q

What are some eye manifestations related to rheumatoid arthritis and it’s treatment?

A

Dry eye syndrome (keratoconjunctivitis sicca)
Episcleritis
Scleritis
Keratitis
Cataracts (secondary to steroids)
Retinopathy (secondary to hydroxychloroquine)

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22
Q

What initial investigations would you do in a patient with suspected rheumatoid arthritis?

A

Rheumatoid factor
Anti-CCP antibodies
Inflammatory markers
X-rays of the hands and feet
Ultrasound or MRI can be used to detect synovitis

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23
Q

What are the x-ray changes in rheumatoid arthritis

A

Periarticular osteopenia
Boney erosions
Soft tissue swelling
Joint destruction and deformity

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24
Q

State 2 scoring systems used in rheumatoid arthritis

A

Health Assessment Questionnaire (HAQ)
Disease Activity Score 28 Joints (DAS28)

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25
Management options for rheumatoid arthritis
Short term steroids may be used at initial presentation first: Monotherapy with methotrexate, leflunomide or sulfasalazine second: Combination treatment with multiple cDMARDs third: Biologic therapies (usually alongside methotrexate)
26
What DMARDs are considered safe in pregnancy
Hydroxychloroquine and sulfasalazine (extra folic acid is required with sulfasalazine).
27
Name 3 types of biologics used in rheumatoid arthritis
Tumour necrosis factor (TNF) inhibitors (e.g., adalimumab) Anti-CD20 on B cells (e.g., rituximab) Anti-interleukin-6 inhibitors JAK inhibitors T-cell co-stimulation inhibitors
28
What are some side effects of Methotrexate
Mouth ulcers and mucositis Liver toxicity Bone marrow suppression and leukopenia (low white blood cells) Teratogenic
29
What are some side effects of Leflunomide
Mouth ulcers and mucositis Increased blood pressure Liver toxicity Bone marrow suppression and leukopenia Teratogenic Peripheral neuropathy
30
What are some side effects of Sulfasalazine?
Orange urine Reversible male infertility (reduced sperm count and quality) Bone marrow suppression
31
What are some side effects of Hydroxychloroquine?
Retinal toxicity (reduced visual acuity (macular toxicity) Blue-grey skin pigmentation Hair lightening
32
Psoriatic arthritis occurs in what percentage of patients with psoriasis?
10-20%
33
Name 2 extra-articular manifestations of psoriatic arthritis
Uveitis Inflammatory bowel disease
34
What are the 5 patterns of psoriatic arthritis?
Asymmetrical oligoarthritis Symmetrical polyarthritis Distal interphalangeal predominant pattern Spondylitis Arthritis mutilans
35
What are some signs of psoriatic arthritis?
Plaques of psoriasis on the skin Nail pitting Onycholysis (separation of the nail from the nail bed) Dactylitis (inflammation of the entire finger) Enthesitis (inflammation of the entheses, which are the points of insertion of tendons into bone)
36
What tool can you use to screen patients for psoriatic arthritis
Psoriasis Epidemiological Screening Tool (PEST)
37
What are some x-ray changes seen in psoriatic arthritis?
Periostitis (inflammation of the periosteum, causing a thickened and irregular outline of the bone) Ankylosis (fixation or fusion of the bones at the joint) Osteolysis (destruction of bone) Dactylitis (inflammation of the whole digit, seen as soft tissue swelling)
38
What disease is the x-ray finding 'pencil-in-cup' associated with?
psoriatic arthritis
39
What is the management of psoriatic arthritis?
NSAIDs steroids DMARDs Biologics - anti-TNF, Ustekinumab
40
What is a significant differential in reactive arthritis ?
Septic arthritis
41
What are the most common triggers for reactive arthritis
Gastroenteritis STI's e.g. Chlamydia
42
What gene is associated with reactive arthritis
HLA B27
43
What are some associated symptoms of reactive arthritis?
Bilateral conjunctivitis (non-infective) Anterior uveitis Urethritis (non-gonococcal) Circinate balanitis (dermatitis of the head of the penis)
44
How is reactive arthritis managed?
Joint aspiration to rule our septic arthritis treat trigger NSAIDs Steroid injections systemic steroids
45
What joints are mainly affected in Ankylosing spondylitis?
sacroiliac joints Vertebral column joints
46
90% of patients with ankylosing spondylitis have what gene
HLA-B27
47
what are the main presenting features of ankylosing spondylitis?
Pain and stiffness in the lower back Sacroiliac pain (in the buttock region)
48
What are some additional symptoms of osteoarthritis
Chest pain related to the costovertebral and sternocostal joints Enthesitis Dactylitis Vertebral fractures Shortness of breath relating to restricted chest wall movement)
49
What conditions are associated with ankylosing spondylitis?
A – Anterior uveitis A – Aortic regurgitation A – Atrioventricular block (heart block) A – Apical lung fibrosis (fibrosis of the upper lobes of the lungs) A – Anaemia of chronic disease
50
What test can be done to assess spinal mobility on ankylosing spondylitis
Schober's test (length of <20cm indicates restriction)
51
What key investigations can be done for ankylosing spondylitis
Inflammatory markers (e.g., CRP and ESR) may rise with disease activity HLA B27 genetic testing X-ray of the spine and sacrum MRI of the spine can show bone marrow oedema early in the disease
52
What x-ray changes can be seen in Ankylosing spondylitis?
Bamboo spine Squaring of vertebral bodies Subchondral sclerosis + erosions Syndesmophytes Ossification Fusion
53
How is Ankylosing spondylitis managed?
NSAIDs ANti-TNF biologics Inter-articular steroid injections physio, exercise, avoid smoking
54
What is the epidemiology of systemic lupus erythematosus
Women Asian, African, Caribbean and Hispanic Young to middle-aged
55
SLE is characterised by which antibody?
anti-nuclear antibodies (ANA)
56
What are some non-specific symptoms SLE may present with?
Fatigue Weight loss Arthralgia (joint pain) Non-erosive arthritis Myalgia (muscle pain) Fever Photosensitive malar rash Lymphadenopathy Splenomegaly Shortness of breath Pleuritic chest pain Mouth ulcers Hair loss Raynaud’s phenomenon Oedema (due to nephritis)
57
What may an FBC show in a patient with SLE?
anaemia of chronic disease, low white cell count and low platelets
58
What will happen to C3 and C4 in SLE?
levels decreased in active disease
59
Name 4 autoantibodies that may be present in SLE
anti-nuclear antibodies Anti-double stranded DNA antibodies (highly specific) Anti -Sm Anti-centromere antibodies Anti-Ro, Anti-La Antiphospholipid antibodies
60
What are some complications of SLE?
CVD Infection Anaemia Pericarditis Pleuritis Lupus nephritis Interstitial lung disease Neuropsychiatric SLE Recurrent miscarriage VTE
61
How is SLE managed?
Hydroxychloroquine NSAIDs Steroids (prednisolone) DMARDs Biologics (Rituximab, Belimumab)
62
What is the appearance of the lesions in discoid lupus erythematosus
Inflamed Dry Erythematous (red) Scaling
63
What is an association of discoid lupus erythematous
scarring alopecia hyper/hypopigmentation
64
How is discoid lupus erythematous diagnosed
skin biopsy
65
How is discoid lupus erythematous managed?
Sun protection Topical steroids Intralesional steroid injections Hydroxychloroquine
66
What are the 2 main patterns of systemic sclerosis?
Limited cutaneous systemic sclerosis Diffuse cutaneous systemic sclerosis
67
What are the features of limited cutaneous systemic sclerosis?
C – Calcinosis R – Raynaud’s phenomenon E – oEsophageal dysmotility S – Sclerodactyly T – Telangiectasia
68
What are some systemic symptoms of diffuse cutaneous systemic sclerosis?
Cardiovascular problems (e.g., hypertension and coronary artery disease) Lung problems (e.g., pulmonary hypertension and pulmonary fibrosis) Kidney problems (e.g., scleroderma renal crisis)
69
What are the colour changes in Raynaud's and why
First white, due to vasoconstriction Then blue, due to cyanosis Then red, due to reperfusion and hyperaemia
70
What are the management options for Raynauds
keep hands warm calcium channel blocker (nifedipine) others: losartan, ACEi, sildenafil, fluoxetine
71
Name 3 autoantibodies associated with systemic sclerosis
Antinuclear antibodies (ANA) are positive in most patients with systemic sclerosis. They are non-specific. Anti-centromere antibodies are most associated with limited cutaneous systemic sclerosis. Anti-Scl-70 antibodies are most associated with diffuse cutaneous systemic sclerosis and more severe disease.
72
How is systemic sclerosis managed?
DMARDs biologics symptomatic treatment
73
What condition is polymyalgia rheumatica strongly associated with?
Giant cell arteritis
74
Where to patients typically get pain in polymyalgia rheumatica?
Shoulders Pelvic girdle Neck
75
What are some associated features of polymyalgia rheumatica?
Systemic symptoms (e.g., weight loss, fatigue and low-grade fever) Muscle tenderness Carpel tunnel syndrome Peripheral oedema
75
What are the characteristic features of the pain and stiffness in polymyalgia rheumatica
worse in morning, after rest or with inactivity Interfere with sleep Take atleast 45 mins in morning slightly improves with activity
75
Name 3 differential diagnoses for polymyalgia rheumatica
osteoarthritis cervical spondylitis Rheumatoid arthritis Myeloma
76
What is the treatment for polymyalgia rheumatica?
steroids (15mg prednisolone) - reducing regime
77
What additional management is required for patients on long term steroid therapy?
Don’t – steroid dependence occurs after 3 weeks of treatment, and abruptly stopping risks adrenal crisis S – Sick day rules (steroid doses may need to be increased if the patient becomes unwell) T – Treatment card – patients should carry a steroid treatment card to alert others that they are steroid-dependent O – Osteoporosis prevention may be required (e.g., bisphosphonates and calcium and vitamin D) P – Proton pump inhibitors are considered for gastro-protection (e.g., omeprazole)
78
What size of arteries does GCA affect?
medium and large arteries
79
What is the key complication of GCA?
vision loss
80
How may GCA present?
Unilateral headache (Around temple and forehead) scalp tenderness jaw claudication blurred/double vision loss of vision if untreated
81
What are some associated symptoms of GCA?
Symptoms of polymyalgia rheumatica Systemic symptoms Muscle tenderness Carpel tunnel syndrome Peripheral oedema
82
What investigations may be carried out for GCA
Clinical presentation Raised inflammatory markers, particularly ESR (usually more than 50 mm/hour) Temporal artery biopsy (showing multinucleated giant cells) Duplex ultrasound (showing the hypoechoic “halo” sign and stenosis of the temporal artery)
83
how is GCA managed?
Steroids (40-60mg prednisolone daily if no visual/jaw claudication, if present then 500mg-1000mg methylprednisolone daily) others: aspirin, PPI, bisphosphonates
84
Name 3 complications of GCA
Steroid-related complications (e.g., weight gain, diabetes and osteoporosis) Visual loss Cerebrovascular accident (stroke)
85
What are the 2 main skin changes seen in Dermatomyositis
Gottron papules on back of hands Heliotrope rash affecting eyelids
86
What may be some underlying triggers/causes for poly/dermatomyositis?
underlying cancer viral infection (Coxsackie, HIV)
87
How does polymyositis and dermatomyositis typically present?
gradual-onset, symmetrical, proximal muscle weakness, causing difficulties standing from a chair, climbing stairs or lifting overhead Myalgia
88
What blood test is critical for myositis
Creatine kinase
89
What are some causes of a raised creatine kinase
polymyositis/dermatomyositis Rhabdomyolysis AKI MI Statins Strenuous exercise
90
What antibody is most associated with polymyositis?
anti-Jo-1
91
How is polymyositis and dermatomyositis managed?
1st: Corticosteroids 2nd: immunosuppressants, Biologics, IVIg
92
What are the specific antiphospholipid antibodies?
Lupus anticoagulant Anticardiolipin antibodies Anti-beta-2 glycoprotein I antibodies
93
What are 3 key complications of antiphospholipid syndrome?
VTE Arterial thrombosis Pregnancy-related complications
94
What are some associated signs in antiphospholipid syndrome?
Livedo reticularis (purple, lace like rash) Libmann-Sacks endocarditis Thrombocytopenia
95
How is antiphospholipid syndrome managed?
Long term warfarin (INR target 2-3) LMWH/ aspirin in pregnancy
96
What are some key features of Sjogren's syndrome
Dry eyes Dry mouth Dry vagina
97
What 2 antibodies are associated with Sjogren's?
Anti-Ro Anti-La
98
What test can be done for the symptoms of Sjogren's syndrome?
Schirmer test
99
How is Sjogren's syndrome managed?
Artificial tears/saliva vaginal lubricants Pilocarpine (can stimulate production) Hydroxychloroquine if associated joint pain
100
What are some complications of Sjogren's syndrome?
Eye problems, such as keratoconjunctivitis sicca and corneal ulcers Oral problems, such as dental cavities and candida infections Vaginal problems, such as candida infection and sexual dysfunction
101
What type of glands does Sjogrens affect?
Exocrine (lacrimal and salivary)
102
What are some rare organ complications of Sjogren's?
Pneumonia Bronchiectasis Non-Hodgkins lymphoma Peripheral neuropathy Vasculitis Renal impairment
103
Name 3 types of small vessel vasculitis
Henoch-Scholein Purpura Microscopic Polyangiitis Granulomatosis with Polyangiitis Eosinophilic Granulomatosis with Polyangiitis
104
Name 2 medium vessel vasculitis
Polyarteritis Nodosa Kawasaki Disease
105
Name 2 large vessel vasculitis
Giant cell arteritis Takayasu's arteritis
106
What are some key features of Henoch-Schonlein Purpura
Purpura IgA nephritis
107
What are some key lab findings and features of Microscopic Polyangiitis
p-ANCA Glomerulonephritis Diffuse alveolar haemorrhage
108
What are some key lab findings and features of Granulomatosis with Polyangiitis
c-ANCA Nasal symptoms Respiratory symptoms Glomerulonephritis
109
What are some key lab findings and features of Eosinophilic granulomatosis with polyangiitis
p-ANCA, raised eosinophils Late-onset asthma Sinusitis and rhinitis
110
What are some key features of Polyarteritis Nodosa
Renal impairment HTN CV events Tender skin nodules
111
What are some key features of Kawasaki's disease
High fever (>5d) widespread rash strawberry tongue Coronary artery aneurysms
112
What are some key features and lab findings in Giant cell arteritis
raised ESR Unilateral headache scalp tenderness vision loss
113
What are some key features of Takayasu's arteritis?
aortic arch affected 'pulseless' disease
114
What are some general vasculitis features
Joint and muscle pain Peripheral neuropathy Renal impairment Purpura (purple-coloured non-blanching spots caused by blood leaking from the vessels under the skin) Necrotic skin ulcers Gastrointestinal symptoms (e.g., diarrhoea, abdominal pain and bleeding)
115
What associated systemic symptoms may be present in a patient with vasculitis?
Fatigue Fever Night sweats Weight loss Anorexia (loss of appetite) Anaemia
116
What investigations can be done in a patient with suspected vasculitis?
CRP + ESR p-ANCA - microscopic polyangiitis + eosinophilic granulomatosis with polyangiitis c-ANCA - granulomatosis with polyangiitis
117
How is vasculitis managed?
1st: Steroids 2nd: cyclophosphamide, rituximab
118
What are the 4 classic features of Henoch-Schonlein Purpura
Purpura Joint pain Abdominal pain Renal involvement (IgA nephritis)
119
How is Henoch-Schonlein Purpura managed?
Supportive - rest, hydration, analgesia urine dip + blood pressure monitoring
120
What are the key features of Behcet's disease
Oral ulcers with red halo Genital ulcers erythema nodosum, eye problems, MSK, GI, CNS, aneurysms, DVT
121
What test can be done for Behcet's disease
Pathergy test
122
How is Behcet's disease managed?
Topical + systemic steroids Colchicine Topical anaesthetics Immunosuppressants Biologics
123
What is the most common type of Ehlers-Danlos syndrome
Hypermobile Ehlers-Danlos syndrome
124
What is the most severe type of Ehlers-Danlos syndrome and what are some features?
Vascular thin, translucent skin, fragile blood vessels autosomal dominant
125
What are some key features of Ehlers-Danlos syndrome
Joint pain Hypermobility Soft and stretchy skin Joint dislocations Striae easy bruising poor wound healing bleeding chronic pain autonomic dysfunction
126
What score is used to test hypermobility on Ehlers-Danlos syndrome
Beighton score
127
How is Ehlers-Danlos syndrome managed?
Supportive - physio, OT, moderating activity
128
Name 4 risk factors for gout
Male Family history Obesity High purine diet (e.g., meat and seafood) Alcohol Diuretics Cardiovascular disease Kidney disease
129
What are the most commonly affected joints in gout
MTP of big toe CMC - base of thumb wrist
130
How is gout diagnosed/investigated?
clinically raised serum urate on bloods Aspirated joint - monosodium urate crystals (needle shaped, negative birefringent)
131
What may an x-ray of a joint affected by gout show?
No loss of joint space lytic lesions in bone punched out erosions which may have sclerotic boarders with overhanging edges
132
How is gout managed?
Acute - NSAIDS (1st naproxen, 2nd Colchicine, 3rd oral steroids) Prophylaxis - Allopurinol, Febuxostat
133
What would joint aspiration show in a patient with pseudogout?
calcium pyrophosphate crystals, rhomboid-shaped, positive birefringent
134
What is the classic x-ray change in pseudogout?
Chondrocalcinosis Others: LOSS (loss of joint space, osteophytes, subarticular sclerosis, subchondral cysts)
135
How is pseudogout managed?
NSAIDS (Naproxen) Colchicine Intra-articular steroid injections Oral steroids
136
What T score is seen in Osteopenia
-1 to -2.5
137
What T score is seen in Osteoporosis
<-2.5
138
What T score is seen in severe Osteoporosis
Less than -2.5 plus a fracture
139
How is bone mineral density measured?
DEXA scan
140
What is the difference between a Z and T score?
Z-score is the number of standard deviations the patient is from the average for their age, sex and ethnicity. T-score is the number of standard deviations the patient is from an average healthy young adult.
141
What are some risk factors for osteoporosis?
Older age Post-menopausal women Reduced mobility and activity Low BMI Low calcium or vitamin D intake Alcohol and smoking Personal or family history of fractures Chronic diseases Long-term corticosteroids Certain medications (e.g., SSRIs, PPIs, anti-epileptics and anti-oestrogens)
142
The 10-year risk of a major osteoporotic fracture and a hip fracture can be calculated using either:
QFracture tool (preferred by NICE) FRAX tool (NICE say this may underestimate the risk in some patients)
143
How is osteoporosis managed?
Lifestyle changes Adequate vitamin D and calcium Bisphosphonates e.g. Alendronate other: Denosumab
144
What are some important side effects of Bisphosphonates?
Reflux and oesophageal erosions Atypical fractures (e.g., atypical femoral fractures) Osteonecrosis of the jaw (regular dental checkups are recommended before and during treatment) Osteonecrosis of the external auditory canal
145
What causes osteomalacia?
defective bone mineralisation resulting from insufficient vitamin D
146
How does osteomalacia present?
Fatigue Bone pain Muscle weakness Muscle aches Pathological or abnormal fractures
147
How is osteomalacia treated
Colecalciferol (vitamin D3)
148
What is the pathophysiology behind Pagets's disease of the bone
excessive bone turnover (reabsorption and formation) due to increased osteoclast and osteoblast activity
149
How would Paget's disease of the bone present?
Bone pain Bone deformity Fractures Hearing loss
150
What x-ray findings can be seen in Paget's disease of the bone?
Bone enlargement and deformity Osteoporosis circumscripta (well-defined osteolytic lesions that appear less dense compared with normal bone) Cotton wool appearance of the skull (poorly defined patchy areas of increased and decreased density) V-shaped osteolytic defects in the long bones
151
What would blood tests show in a patient with Paget's disease of the bone
Raised alkaline phosphatase Normal calcium Normal phosphate
152
How is Paget's disease of the bone managed?
Bisphosphonates others: Calcitonin, analgesia, calcium + vit D, surgery
153
What are some key complications of Paget's disease of the bone?
Hearing loss (if it affects the bones of the ear) Heart failure (due to hypervascularity of the abnormal bone) Osteosarcoma Spinal stenosis and spinal cord compression