Arm Flashcards

1
Q

What passes through the carpal tunnel?

A

Flexor pollicis longus, the four flexor digitorum superficialis and the four flexor digitorum profundus

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2
Q

Which digits does the median nerve innervate?

A

thumb and radial 2½ fingers

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3
Q

Most cases of carpal tunnel are idiopathic

A

T

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4
Q

Which tests can be conducted to reproduce symptoms of carpal tunnel?

A

Tinel’s test: percussing over the median nerve

Phalen’s test: holding the wrists hyper‐flexed which decreases space in the carpal tunnel.

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5
Q

How do patients with carpal present?

A

parathesiae in the median nerve innervated digits which is usually worse at night
loss of sensation
weakness of the thumb or clumsiness in the areas of the hand supplied by the median nerve.

On examination there may be demonstrable loss of sensation and/or muscle wasting of the thenar eminence

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6
Q

Non-operative treatment for carpal tunnel syndrome?

A

use of wrist splints at night to prevent flexion. Injection of corticosteroid can also be used.

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7
Q

Surgical treatment for carpal tunnel syndrome?

A

Decompression involving division of the transverse carpal ligament under local anaesthetic

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8
Q

In cubital tunnel syndrome, what is compressed and where

A

ulnar nerve at the elbow behind the medial epicondyle

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9
Q

Which fingers does the ulnar nerve innervate?

A

ulnar 1½ fingers

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10
Q

In cubital tunnel syndrome what test is usually +ve? How is this performed

A

TInel’s

percussion over cubital tunnel

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11
Q

Which muscles of the hand are innervated by the ulnar nerve?

A

1st dorsal interosseous (abduction index finger) and adductor pollicis

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12
Q

What is Froment’s test?

A

Tests adductor pollicis function

patient is asked to hold a piece of paper between the thumb and a flat palm as the paper is pulled away

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13
Q

Where does compression usually happen in cubital tunnel syndrome?

A

tight band of fascia forming the roof of the tunnel
tightness at the intermuscular septum as the nerve passes through or between the two heads at the origin of flexor carpi ulnaris

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14
Q

What is the elbow joint composed of?

A

Humero ulnar joint and radio‐ capitallar joint

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15
Q

What is the humero-unlar joint responsible for?

A

flexion/extension

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16
Q

What is the radio‐ capitallar joint responsible for?

A

supination/pronation along with the proximal and distal radioulnar joints

17
Q

Which muscles flex the elbow?

A

Biceps and brachialis

18
Q

Which muscle extends the elbow?

A

Triceps muscle

19
Q

Where does the triceps muscle insert?

A

Olecranon

20
Q

How is pronation performed? By which muscles?

A

contraction of the pronator teres muscle proximally and the pronator quadratus muscle distally

21
Q

Which muscles perform supination?

A

Supinator and biceps

22
Q

The elbow is commonly affected by which type of arthritis?

A

RA

23
Q

The common extensor and flexor origin arise from which epicondyles on the humerus?

A

lateral and medial

24
Q

What is enthesopathy? What can it lead to?

A

Pain in origins of flexor and extensor muscles

can lead to epicondylitis

25
Q

Tennis elbow is laymans term for?

A

Lateral epicondylitis

26
Q

repetitive strain injury in tennis players and others whom regularly perform resisted extension at the wrist causes?

A

Lateral epicondylitis

27
Q

painful and tender lateral epicondyle and pain on resisted middle finger and wrist extension.

A

Lateral epicondylitis

28
Q

Lateral epicondylitis is not a self limiting condition

A

F

29
Q

Treatment of lateral epicondylitis is mainly conservative

A

period of rest from the activities that exacerbate the pain, physiotherapy, NSAIDs, steroid injections and use of a brace (known as an elbow clasp)

30
Q

What is golfer’s elbow?

A

Medial epicondylitis is a consequence of repeated strain or degeneration of the common flexor origin

31
Q

Which epicondylitis is most common?

A

lateral

32
Q

Medial epicondylitis is a self‐limiting condition with physio, rest & NSAIDs the mainstay of treatment

A

T

33
Q

You can treat medial epicondylitis with injection

A

F

Injection in this area carries a risk of injury to the ulnar nerve.

34
Q

Primary OA of the elbow is common

A

F

but it can occur after fracture

35
Q

Failing non-operative management, how can arthritic change in the radio- capittellar joint be treated?

A

surgical excision of the radial head which affords good pain relief with minimal functional limitation.

36
Q

Failing non-operative management, how can arthritic change in the humero‐ulnar joint be treated?

A

Total Elbow Replacement