Shoulder and elbow Flashcards
Presentation of rotator cuff tear
Older patient
Weakness
Diffuse lateral shoulder pain
After trauma if younger
Special tests for rotator cuff tears
Belly-press or thumb up across back
Supraspinatus test (thumb up)
Thumbs down test (drop can test - impingement, tear, inflammation)
Management of rotator cuff tears
Analgesia and physio if longstanding (not reparable in elderly due to poor blood supply)
Small tears –> manage as impingement
Medium tears –> surgical management (esp if acute, trauma)
Pathophysiology of rotator cuff impingement
Tendinopathy with disordered collagen, inflammation
Beaking of acromion process with age
Presentation of rotator cuff impingement
Painful arc (45-160 degrees)
40s-60s
Only on active movement, passive if acromion pressed
Special tests for rotator cuff impingement
Empty can test (thumbs down for supraspinatus)
Hawkins-Kennedy test
Management of impingement syndrome
Analgesia, physio, subacromial injections
Calcifying tendinopathy –> aspiration
‘Beaking’ of acromion –> surgical decompression
NSAIDs if calcifuing tendinopathy/AC osteoarthritis
Special test for A-C joint dysfunction
Scarf test –> pain over acromioclavicular joint
Management of shoulder arthritis
A-C joint: excision
G-H joint: fusion or replacement
For both: analgesia, physio
Radiographic features of osteoarthritis
Joint space loss
Osteophytes
Subchondral sclerosis
cyst formation
Presentation of shoulder arthritis
Pain, stiffness, loss of movement/function (esp external rotation)
Always consider referred neck pain!
Presentation of frozen shoulder (i.e. adhesive capsulitis)
Painful freezing phase: Pain, reduction in ROM (abduction and external rotation), lasts approx 1 year
Frozen phase: Pain subsides, stiffness remains (6-12mo) Active + passive movement affected, worse at night
‘Thawing’ phase: ROM returns, lasts 1-3 years
Investigation of rotator cuff tears
LA injection + ultrasonography
Pathophysiology of frozen shoulder
Immobilisation, diabetes, thyroid disorders –> fibrosis and thickening of joint capsule restricting movement
Self-limiting condition, hydrodilatation may help (+ physio)
Management of clavicular fractures
Collar and cuff sling for 4-6 weeks
Avoid heavy manual labour for 3mo
F/U X-rays at 2w, 6w, 3mo
Presentation of acromio-clavicular joint dislocation
Direct blow to shoulder, young contact sports
Tender prominence over A-C joint, pain increased by adduction of shoulder
Presentation of SCJ dislocation
Dyspnoea/dysphagia
Mediastinal compression
Upper limb paraesthesia
Follows high-energy trauma, investigated with CT, managed by thoracic surgeons
History suggesting posterior shoulder dislocation
Electric shock
High-energy trauma
Epileptic fits
Forcible restraint
Need axillary/oblique views!
Complications of shoulder dislocation
Brachial plexus injury
Axillary nerve injury
Rotator cuff tear (MRI/US if fx not returned by 4-6w)
Recurrent dislocation (esp in younger patients, encourage immobilisation for 3-4w)
Presentation of scapulothoracic dissociation
Laterally displaced scapula + swelling + bruising
Neurovascular compromise in upper limb
Hx of high-energy trauma
Causes of secondary elbow OA
Much more common than primary
Haemoglobinopathies
RA
synovial proliferative disorders (e.g. chondromatosis)
Trauma
Distinguishing medial and lateral epicondylitis
Medial = golfer/rower/thrower, affects forearm flexors (wrist pronated and flexed most painful)
Lateral = tennis elbow, overuse of extensors, painful extension (esp middle finger) against resistance