Carpal Tunnel Anatomy - Boundaries and Relations of Carpal Tunnel
Carpal Tunnel Anatomy In Carpal Tunnel Anatomy , The carpal tunnel is an osteo-fibrous canal (narrow passageway) Found on the Anterior Aspect of the wrist. It’s the entrance to the palm for several tendons and Median Nerve. The boundaries are the carpal bones forming the floor, and the flexor retinaculum (or transverse carpal ligament ) forming the roof. The retinaculum is about 3–4 cm wide and inserts into the scaphoid tuberosity and into the pisiform (proximal carpal tunnel) and subsequently into the trapezium and the hook of the hamate (distal carpal tunnel). On the radial side, it divides into two layers, a superficial layer and a deep layer to accommodate the tendon of the flexor carpi radialis . The carpal tunnel is formed by two layers: 1) a deep carpal arch and, 2) a superficial flexor retinaculum . Carpal Arc : - - Base/sides: - Concave on the palmar side. - Laterally: - Scaphoid and Trapezium tubercles - Medially: - hook of the hamate and the pisif...