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Musculoskeletal Exam 3 > Forearm, Wrist, and Hand > Flashcards

Forearm, Wrist, and Hand Flashcards

1
Q

The hand accounts for about __% of UE function

A

90%

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2
Q

What is the capsular pattern of the distal radioulnar joint?

A

pain at extremes of pronation/supination

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3
Q

What is the resting position of the distal radioulnar joint?

A

10 degrees of supination

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4
Q

What is the closed packed position of the distal radioulnar joint?

A

5 degrees of supination

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5
Q

Where is the Triangular Fibrocartilage Complex (TFCC) found?

A

between medial proximal row of carpal bones and distal ulna

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6
Q

What are the functions of the TFCC?

A
  • Enhance joint congruity between the ulna and carpal bones

- Cushion against compressive forces

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7
Q

What are the 4 ligaments that originate from the TFCC?

A
  • Ulnolunate ligament
  • Ulnotriquetral ligament
  • Ulnar collateral ligament
  • Radioulnar ligament
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8
Q

What are the 2 structures that support the TFCC?

A
  • Ulnocarpal ligaments

- Sheath of the extensor carpi ulnaris tendon

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9
Q

Which carpals articulate with the TFCC?

A

lunate and triquetrum

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10
Q

What is the capsular pattern of the radiocarpal joint?

A

Flexion and Extension equally limited

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11
Q

What is the resting position of the radiocarpal joint?

A

Neutral with slight ulnar deviation

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12
Q

What is the closed packed position of the radiocarpal joint?

A

Extension with radial deviation

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13
Q

Which carpal bone is most susceptible to injury during a fall onto an outstretched hand?

A

scaphoid

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14
Q

What is the capsular pattern of the intercarpal joints?

A

No recognized capsular pattern for the intercarpal joints

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15
Q

What is the resting position of the intercarpal joints?

A

Neutral or slight flexion

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16
Q

What is the closed packed position of the intercarpal joints?

A

Extension

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17
Q

Approximately 50% of the total arc of wrist flexion and extension occur at what level?

A

the Midcarpal level

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18
Q

What is the capsular pattern of the midcarpal joints?

A

Equal limitation of Flexion/Extension

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19
Q

What is the resting position of the midcarpal joints?

A

Neutral or slight flexion with ulnar deviation

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20
Q

What is the closed packed position of the midcarpal joints?

A

Extension with ulnar deviation

21
Q

What is the capsular pattern of the first CMC joint?

A

Thumb abduction > thumb extension

22
Q

What is the resting position of the first CMC joint?

A

Midway between abduction and adduction, and flexion and extension

23
Q

What is the closed packed position of the first CMC joint?

A

Full opposition

24
Q

What is the capsular pattern of CMC joints 2-5?

A

Equal limitation in all directions

25
Q

What is the resting position of CMC joints 2-5?

A

Midway between flexion and extension

26
Q

What is the closed packed position of CMC joints 2-5?

A

Full flexion

27
Q

What is the capsular pattern of the interphalangeal joints?

A

Flexion, then extension

28
Q

What is the resting position of the interphalangeal joints?

A

Slight flexion

29
Q

What is the closed packed position of the interphalangeal joints?

A

Full extension

30
Q

What is the capsular pattern of the MCP joints?

A

Flexion, then extension

31
Q

What is the resting position of the MCP joints?

A

Slight flexion

32
Q

What is the closed packed position of the MCP joints?

A

Full opposition

33
Q

What is the function of the extrinsic (radiocarpal/ulnocarpal) carpal ligaments?

A

provide the majority of wrist stability

34
Q

What is the function of the intrinsic (midcarpal) carpal ligaments?

A

serve as rotational restraints, binding the proximal row into a unit of rotational stability

35
Q

What is the antebrachial fascia?

A

A dense connective tissue that encases the forearm and maintains the relationship of the tendons that cross the wrist

36
Q

What does the extensor retinaculum do?

A

Serves to prevent the tendons from bowstringing when the tendons turn a corner at the wrist

37
Q

What is the flexor retinaculum aka?

A

transverse carpal ligament

38
Q

The flexor retinaculum transforms the carpal arch into what?

A

the carpal tunnel

39
Q

What are the functions of the flexor retinaculum?

A
  • Serves as an attachment site for the thenar and hypothenar muscles
  • Helps maintain the transverse carpal arch
  • Acts as a restraint against bowstringing of the extrinsic flexor tendons
  • Protects the median nerve
40
Q

What 2 structures restrain the flexor tendons to the metacarpals and phalanges ?

A

Annular and cruciate pulleys

41
Q

What are the 3 arches of the hand?

A
  • transverse
  • longitudinal
  • oblique
42
Q

Dorsal interossei muscles ____duct the fingers.Palmar interossei muscles ____duct the fingers.

A

abductadduct

43
Q

What motion do the lumbricals perform?

A

“Lumberjacks eat Big Macs”

44
Q

What are 6 types of functional hand tests?

A
  • Hand Disability Index
  • Minnesota Rate of Manipulation Test
  • Jebsen-Taylor Hand
  • Function Test
  • Nine-Hole Peg Test
  • Purdue Pegboard Test
  • Crawford Small Parts Dexterity Test
45
Q

Ape hand deformity is indicative of what type of nerve palsy?

A

median nerve

46
Q

Bishop’s hand deformity is indicative of what type of nerve palsy?

A

Ulnar Nerve

47
Q

Drop-wrist deformity is indicative of what type of nerve palsy?

A

radial nerve

48
Q

claw finger deformity is indicative of what type of nerve palsy?

A

Median Nerve and Ulnar Nerve palsy

49
Q

What is Dupuytren’s Contracture?

A

A fixed flexion contracture of the hand due to a palmar fibromatosis

Musculoskeletal Exam 3 (6 decks)

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