Hand and Wrist

Question 1

Name the bones of the hand

Answer 1

"Some Lovers Try Positions That They Can't Handle"
lateral to medial
proximal row:
scaphoid
lunate
triquetrum
pisiform

distal row:
trapezium
trapezoid
capitate 
hamate

Question 2

normal AROM values

Answer 2

wrist flexion: 80
wrist ext: 70
radial deviation: 15
ulnar deviation: 45

end feel: tissue stretch

Question 3

what is the carpal tunnel?

Answer 3

a passage for flexor tendons of fingers and median N, deep to flexor retinaculum

4 tendons for FDS
4 tendons for FDP
1 tendon for FPL

Question 4

perforating wounds of the thumb and pinky can affect the carpal tunnel, why?

Answer 4

infection

synovial sheaths of each are continuous with synovial sheath of carpal tunnel

Question 5

what nerves do not pass through the carpal tunnel?

Answer 5

Ulnar nerve
Palmar cutaneous Nerve - if sensation of the palmar aspect of the hand is affected then the problem is located higher in the median nerve/forearm

Question 6

what is the anatomical snuff box?

Answer 6

dorsal aspect of hand laterally
EPL (medially)
EPB
APL (laterally)

• can palpate scaphoid bone in this area
• superficial branch of Radial N. passes through it
• Radial Artery passes through it

Question 7

what is De Quervain syndrome?

Answer 7

tenosynovitis of the sheath or tunnel that surrounds two tendons that control movement of the thumb:

EPB
APL
(both run side by side)

overuse injuries/repetitive movements of the thumb are a contributing factor

Question 8

what is the Tunnel of Guyon?

Answer 8

ulnar A. and N. sandwiched between 2 layers of flexor retinaculum
not part of carpal tunnel