MSK > Shoulder and Elbow Problems > Flashcards

Shoulder and Elbow Problems Flashcards

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1
Q

What is frozen shoulder/adhesive capsulitis?

A

Painful condition where the connective tissue surrounding the shoulder capsule becomes inflammed and stiffens, greatly restriciting the ROM and causes chronic pain

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2
Q

What is the pathogenesis of frozen shoulder/adhesive capsulitis?

A

Progressive capsular fibrosis - 3 overlapping clinical phases

  1. Painful phase - Active and passive movements restricted (up to a year)
  2. Frozen Phase - pain usually settles, but shoulder remains stiff (6-12 months)
  3. Thawing phase - shoulder slowly regains ROM (1-3 years)
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3
Q

What is the cause of Frozen shoulder?

A

Unclear cause

Trauma

  • Rotator cuff lesions
  • Following hemiplegia
  • Myocardial infarction

Iatrogenic

  • Chest or breast surgery
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4
Q

How does frozen shoulder present?

A
  • Severe shoulder pain - Constant, worse at night and in cold weather
  • Severely impaired ROM (active and passive) - decreased abduction (<90o), especially external rotation (screened for in REMS)
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5
Q

How would you investigate suspected frozend shoulder/adhesive capsulitis?

A
  • Examination - Can’t carry out simple movements
  • Normal X-ray
  • Consider imaging - look for other soft tissue injury
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6
Q

How would you treat someone diagnosed with frozen shoulder/adhesive capsulitis?

A

Early presentation

  • Physiotherapy
  • Steroid/local anaesthetic injection
  • NSAIDS - High dose

Operative

  • Surgery - arthroscopic release
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7
Q

What is subacromial impingement?

A
  • Syndrome of painful arc due to impingement in the subacromial space
  • Results from any pathology which decreases the volume of the subacromial space or increases the size of the contents
  • Bursa + cuff inflamed ⇒ subacromial impingement syndrome
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8
Q

What are the symptoms of subacromial impingement syndrome?

A

Pain - Radiates to upper arm

  • Painful arc syndrome - Often worse during the middle of the range of abduction (45-120o)
  • Decreased ROM - due to pain, some rotation preserved, unlike frozen shoulder
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9
Q

How would you confirm someone had subacromial impingment syndrome?

A
  • Examination - Painful Arc syndrome
  • X-ray/Ultrasound - only if symptoms are peristent
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10
Q

How would you manage someone with subacromial impingment syndrome?

A

Early presentation

  • Physiotherapy

Specific/empirical

  • Subacromial Steroid injection

Operative

  • Arthroscopic subacromial decompression
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11
Q

What is a rotator cuff tear?

A

Tear in any of the rotator cuff muscles (supraspinatus, infraspinatus, subscapularis). Can be degenerative or traumatic in nature

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12
Q

How are rotator cuff tears described?

A
  • Partial-thickness - Often appear as fraying of an intact tendon.
  • Full-thickness
    • Small pinpoint, larger buttonhole, or involve the majority of the tendon
    • Complete detachment from the humeral head
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13
Q

How do rotator cuff tears present?

A
  • WEAKNESS + PAIN - night pain can be a sign
  • Impaired active abduction of the arm
    • Initiate elevation using the unaffected arm
    • Once elevated, the arm can be held in place by the deltoid muscle
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14
Q

How would you investigate someone who you suspected had a rotator cuff tear?

A
  • Examination
  • X-ray
  • MRI
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15
Q

How would you manage someone diagnosed with a rotator cuff tear?

A

Operative

  • Acute rotator cuff tears = early surgery
  • Chronic degenerative tears = surgery if symptomatic
  • Based on thickness of tear
    • Partial - physiotherapy - opreate if still symptomatic after this
    • Complete - referral for assessment ⇒open/arthroscopic repair
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16
Q

What is Tennis elbow?

A

Also known as lateral epicondylitis, it is an inflammatory process at the forearm extensor origin (ennthesitis) on the humeral lateral supra-condylar ridge

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17
Q

What is Golfer’s Elbow?

A

Also known as medial epicondylitis, it is an inflammatory process at the common forearm flexor origin on the humeral medial supra-condylar ridge

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18
Q

What can cause tennis/golfers elbow?

A
  • Playing racquet sports
  • Throwing sports
  • Manual work
  • Activities that involve fine, repetitive hand and wrist movement
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19
Q

How does tennis elbow present?

A
  • Pain - felt at front of lateral condyle, exacerbated when tendon is most stretched (wrist and finger flexion with hand pronated)
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20
Q

What is the clinical presentation of golfer’s elbow?

A
  • Pain - exacerbated by pronation and forearm flexion
  • Ulnar neuropathy - Ulnar nerve can occassionally be affected as it runs behind medial epicondyle
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21
Q

How would you treat tennis/golfer’s elbow?

A

General - generally last for 6-24 months

  • Rest + Ice + NSAIDs
  • Physiotherapy

Specific/empirical

  • Corticosteroids
  • PRP injections - short term relief

Surgical

  • Surgical release - May be indicated if persistent problem
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22
Q

What is olecranon bursitis?

A

Traumatic bursitis following pressure on the elbows

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23
Q

How does olecranon bursitis present?

A

Pain and swelling - over the olecranon

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24
Q

What can be a complication of olecranon bursitis?

A

Abscess formation - leading to septic bursitis

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25
How does osteoarthritis of the shoulder present?
**NOT AS COMMON AS LOWER LIMB OA** * **Pain** * **Decreased ROM of GH joint** - globally, but most particularly external rotation.
26
How does Biceps tendon rupture present?
* **Feeling like "something has gone" on lifting something** * **Popeye appearence** - ball appearence on flexion of the elbow
27
What are the signs of subacromial impingement?
* **Early scapular rotation** * **Passive elevation** - reduces impingement + less painful * **Painful trapezius spasm** * **Subacromial bursitis**
28
What muscles are involved in flexion of the shoulder?
* **Pec major** * **Deltoid anterior 1/3rd** * **Coracobrachialis**
29
What muscles are involved in extension of the shoulder?
Primarily Deltoid posterior 1/3rd, but movement initiated by: * **Latissimus dorsi** * **Pec Major** * **Teres Major**
30
What muscles facilitate abduction at the shoulder?
Supraspinatus first 15o, then deltoid
31
What muscles facilitate Adduction at the shoulder?
* **Pec major** * **Latissimus dorsi** * **Teres major** * **Subscapularis**
32
What are the muscles of the rotator cuff?
SITS * **Subscapularis** * **Infraspinatus** * **Teres Minor** * **Supraspinatus**
33
What muscles are involved in internal rotation at the shoulder?
* **Pec Major** * **Deltoid middle 1/3rd** * **Latissimus dorsi** * **Teres major** * **Subscapularis**
34
What muscles are involved in lateral rotation of the shoulder?
* **Teres minor** * **Infraspinatus**
35
What muscles are involved in elevation of the scapula?
* **Levator scapulae** * **Trapezius**
36
What muscles are involved in depression of the scapula?
* **Serratus anterior** * **Pec Minor**
37
What muscles are involved in protraction of hte scapula?
* **Serratus anterior** * **Pectoralis major**
38
What muscles are involved in retraction of the scapula?
* **Trapezius** * **Rhomboids**
39
What mnemonic can be used to remember the features and treatment of atraumatic shoulder dislocations?
* **A**traumatic * **M**ultidirectional * **B**ilateral * **R**ehabilitation * **I**nferior capsular shift surgery if rehab fails
40
What is the typical age of rotator cuff tear?
\>40 years
41
When are results of a rotator cuff repair better?
If performed within 3 months of injury
42
What investigationds might you perform in someone with olecranon bursitis?
Mainly clinical diagnosis, but can aspirate fluid and send for gram stain, culture and crystal analysis
43
How would you manage olecranon bursitis?
* **Non septic** - analgesia, consider steroid injection and surgery * **Septic** - Abx and aspiration, analgesia, surgical debridement and lavage
44
What is the following?
AC joint separation
45
What are featurs of AC joint dislocation?
* **Tender bony prominence - AC joint** * **Scarf test +ve**
46
How would you manage someone with AC joint dislocation?
X-ray * **Sling and analgesia followed by early mobilisation** * **Consider surgery in persistent**
47
What is the most common cause of proximal humeral fractures?
Osteoporosis
48
What nerve is at risk from a humeral shaft frcature?
Radial nerve
49
What signs might indicate that damage of local nerves has occured due to humeral shaft fracture?
Wrist drop and loss of sensation over 1st dorsal interosseous space - **Radial nerve**
50
What are signs of anterior shoulder dislocation?
* **Loss of shoulder countour** - prominent acromion * **Anterior bulge** - head of humerus * **Arm in slight abduction** * **Elbow flexed** * **Forearm supported by other hand, pronated**
51
What would you want to make sure you check on examination in someone with anterior shoulder dislocation?
**Before and after reduction** - Pulses and nerves - including axillary nerve over badge area
52
What investigations would you consider doing in someone with anterior shoulder dislocation?
**X-ray** - is there a break
53
How would you manage someone with anterior shoulder dislocation?
* **Pain relief** - entonox, consider strong analgesia * **Reduction** * **Simple reduction** * **Kocher's method**
54
What would you want to do once you had reduced a dislocated shoulder?
Examine pulses and nerves, and X-ray to ensure in the right place
55
What can you see on the following X-ray?
Anterior shoulder dislocation
56
What can be seen in the following X-ray?
Fractured clavicle
57
What is the risk of using Kocher's method to relocate someones shoulder?
Humeral fracture
58
How would you manage a fracture of the clavicle?
* **Broad arm sling** * **Follow-up X-ray** - 6 weeks
59
What are potential complications of a clavicular fracture?
* **Brachial plexus inkjury** * **Subclavian vessel damage** * **Pneumothorax**
60
What is the most common fracture of childhood?
Supracondylar fracture
61
What is the most common cause of supracondylar fracture?
Hyperextension
62
What is a complication that can occur from a supracondylar fracture?
Cubitus varus deformity from malunion
63
How would you manage an olecranon fracture?
ORIF
64
What is the most common elbow fracture in adults?
Fracture of the radial head
65
What are features of a radial head fracture?
* **Swollen and tender over radial head** * **Flexion/extension possible** * **Pronation/supination painful**
66
How would you manage a fractured radial head?
* **Undisplaced** - collar and cuff * **Displaced** - ORIF/removal of radial head
67
What is the most common direction for elbows to dislocate in?
**Posterior** - 90%
68
What are features of an elbow dislocation?
* **Posterior ulna displacement** * **Swollen elbow** * **Fixed flexion**
69
How would you manage a non-displaced supracondylar fracture?
Above elbow back slab + sling
70
How would you manage a supracondylar fracture which is distally angulated?
OR under GA
71
How would you manage a posteriorly displaced supracondylar fracture?
ORIF + K wires
72
What nerve is threatened in a posteromedial displaced supracondylar fracture?
Radial nerve
73
What nerve is threatened in a posterolaterally displaced supracondylar fracture?
Median nerve, esp. anterior interosseous
74
How would you test the supraspinatus tendon?
Empty Can/Jobe's Test * Upper arm should be passively abducted (∼ 90°) and flexed horizontally with the elbow extended. * Internally rotated (thumb pointing downwards) * Check the patient's ability to maintain the arm in this position * If the patient is able to maintain this position, the examiner applies pressure to the patient's arm and the patient is asked to resist. * Positive - pain or the inability to maintain the arm's position against resistance → functional disorder of the supraspinatus muscle (e.g., tendon rupture, tendinopathy, or subacromial bursitis)
75
How would you examine the subscapularis?
**Lift-off test** * Hand behind the lower back with the palm facing outwards. * Check ability to lift the hand away from the back * If the patient is able to perform this movement, the examiner applies resistance to the patient's palm. * The patient is asked to move the hand against resistance applied by the examiner. * Check the other arm. * Positive lift-off test: pain when returning the hand to the starting position or the inability to move the hand against resistance → functional disorder of the subscapularis tendon (e.g., rupture)
76
How would you assess infraspinatus/teres minor?
Infraspinatus test: * The test can be performed in two positions: * Position 1: The patient's elbow is bent to 90°. * Position 2: The patient's arm is abducted to 90° and the humerus is medially rotated to 30° * The examiner applies resistance against the back of the patient's hand. The patient is asked to maintain his or her position. * Positive infraspinatus test: inability to perform external rotation against resistance → impaired infraspinatus muscle, e.g., in suprascapular nerve lesion
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