Approach to Elbow, Wrist, & Hand Complaint Flashcards

1
Q

C4 Dermatome

A

acromioclavicular joint

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2
Q

C5 Dermatome

A

lateral aspect of the lower deltoid muscle

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3
Q

C6 Dermatome

A

radial side of forearm

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4
Q

C7 Dermatome

A

palmar side of the middle finger

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5
Q

C8 Dermatome

A

5th digit

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6
Q

T1 Dermatome

A

medial aspect of the antecubital fossa, proximal to medial epicondyle of the humerus

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7
Q

Common Causes of Elbow Pain

A
  • subluxation of the radial head
  • medial epicondylitis
  • lateral epicondylitis
  • olecranon bursitis
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8
Q

Subluxation of the Radial Head (Nursemaid’s Elbow)

A
  • common in children
  • cause: sudden pulling, falling and arm twisting
  • radial head slips out from under the annular ligament and gets trapped in the radiohumeral joint
  • presentation: arm close to body with elbow slightly flexed or fully extended with the forearm pronated
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9
Q

Medial Epicondylitis (Golfer’s Elbow)

A
  • cause: overuse injury from repeated motion
  • acute or chronic inflammation of FLEXOR tendons due to some form of strenuous activity
  • presentation: pain on medial elbow, tenderness with passive extension of the wrist, resisted flexion of wrist
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10
Q

Lateral Epicondylitis (Tennis Elbow)

A
  • cause: overuse injury from repeated motion, excessive hyperextension
  • acute or chronic inflammation of EXTENSOR tendons due to incorrect stroke mechanisms
  • presentation: lateral elbow pain, pain on palpation, tenderness with resisted wrist extension
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11
Q

Olecranon Bursitis

A
  • causes: inflammatory arthritis, trauma, hemorrhage, infection
  • inflammation of the olecranon bursae which is located in the posterior aspect of the olecranon
  • presentation: pain and swelling of olecranon
  • bursitis vs elbow effusion – able to extend elbow without severe pain = bursitis, with pain = suggestive of effusion
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12
Q

Common Causes of Hand and Wrist Pain

A
  • Carpal Tunnel Syndrome
  • De Quervain Tenosynovitis
  • Trigger Finger
  • Scaphoid Fx
  • Boxer’s Fx
  • Colle’s Fx
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13
Q

Carpal Tunnel Syndrome

A
  • condition that is caused by compression of the medial nerve
  • risk factors: obesity, endocrine disorders (DM), repetitive movements/workplace factors, pregnancy, genetic, female,
  • presentation: pain and paresthesia along the first 3 and a half digits
  • specialty tests: Tinels, Phalens
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14
Q

De Quervain Tenosynovitis

A
  • recurrent inflammation of the tendon and synovial sheath covering extensor pollicis brevis and abductor pollicis longus
  • causes: recurrent movements (new mothers picking up child), idiopathic
  • presentation: radial wrist pain at base of thumb especially with movement of the thumb
  • specialty exam: Finkelstein Test
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15
Q

Stenosing Flexor Tenosynovitis (Trigger Finger)

A
  • thickening of the flexor tendon which cause the first annular pulley to not work properly
  • risk factors: over-use trauma, DM, autoimmune conditions
  • presentation: pain, locking and clicking of MCP joint; common in the 5th and 6th decade of life; most common on ring finger
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16
Q

Dupuytren’s Contracture

A
  • fibrosis of the palmar fascia which causes progressive stiffening of the joint and inability to fully extend the finger
  • cause: thickening of the palmer fascia due to fibroblastic proliferation and collagen deposition
  • presentation: thickening on the palmer surface, painful or painless, cord-like structure and flexed digit with palpable cord on exam
17
Q

Scaphoid Fracture

A
  • scaphoid has poor blood supply so nonunion is complication of this
  • cause: fall on outstretched hand which causes hyperextension of the wrist
  • presentation: pain on radial aspect of wrist and reduced grip strength after fall on outstretched hand
  • exam findings: tenderness on anatomical snuffbox, tenderness with scaphoid compression and on scaphoid tubercle
18
Q

Boxer’s Fracture

A
  • fracture of the metacarpal neck (usually fifth digit)
  • causes: direct injury/trauma to clenched fist
  • presentation: pain on dorsum of hand after direct trauma), swelling and bruising, tenderness over fx site
19
Q

What is the most common fx of the UE?

A

Colles

20
Q

Colles Fracture

A
  • fracture of the distal radius
  • causes: falling on outstretched hand with wrist in extension
  • risk factors: osteoporosis in older patients
21
Q

Rheumatoid Arthritis

A
  • inflammatory polyarthritis causing deformity of the joints through the damage of the bone and cartilage; most commonly affects the MCP and PIP joints of the finger but can effect large and small joints
  • causes: autoimmune, unknown etiology
  • presentation: morning stiffness, swelling nad pain of the MCP and PIP, 3 or more joints affected, deformity of the digit
22
Q

Motion at Ulnar Humoral Joint

A

Flexion and Extension

23
Q

Motion at Radial Ulnar Joint

A
  • Pronation and Supination
  • Glide motion at radial head
24
Q

Wrist pronation -> __ radial head

A

Posterior

25
Q

Wrist supination -> ___ radial head

A

Anterior

26
Q

Fall Prone = ___ radial head somatic dysfunction

A

Posterior

27
Q

Fall Supine = ___ radial head somatic dysfunction

A

Anterior