Carpal Tunnel

<Upper Limb Anatomy>   <Anatomy>

<Index>

 

 

Definition

-  Anatomical tunnel in volar aspect of wrist which allows passage of tendons & nerves into hand

 

Features

-  Involved in pathogenesis of carpal tunnel syndrome

 

Anatomy

-  Dorsal surface: carpal bones

-  Volar surface: transverse carpal ligament (flexor retinaculum)

-  Transected in carpal tunnel release surgery for carpal tunnel syndrome

-  Attaches to hamate & pisiform on ulnar side

-  Attaches to trapezium & scaphoid tuberosity on radial side

-  Contains

-  FDPs tendons x4

-  FlDS tendons x4

-  FPL tendon

-  Median nerve