Wrist hand Path 1 pt2 Flashcards
1
Q
Borders of guyons canal
A
Pisiform
Hamate
Transverse carpal ligament
Volar carpal ligament
2
Q
How many entrapment zones are there in guyons canal?
A
3
3
Q
Zone 1 entrapment
A
Proximal to canal before division of deep and superficial nerve
4
Q
Zone 2 entrapment
A
Entrapment after division of deep and superficial nerve between ADM and FDM muscles. Superficial nerve is spared
5
Q
Zone 3 entrapment
A
Entrapment occurs distal to ulnar tunnel medially in canal and compressing superficial nerve
6
Q
Zone 1 entrapment symptoms
A
Motor weakness of all intrinsics
Sensation loss of 4-5 digits
7
Q
Zone 2 entrapment symptoms
A
No loss of sensation
Motor weakness of intrinsics with exception of some hypothenar muscles (palmaris brevis)
8
Q
Zone 3 entrapment of symptoms
A
Sensation loss of 4-5th digits
