Carpal Tunnel

Boundaries of the Carpal Tunnel

• Roof: Flexor retinaculum.
• Floor: Carpal bones (hamate, capitate, trapezoid, trapezium, pisiform, triquetrum, lunate, and scaphoid).
• Medial Boundary: Pisiform and hamate bones.
• Lateral Boundary: Scaphoid and trapezium bones.

Attachments of the Flexor retinaculum

• Medially: It attaches to the pisiform and the hook of the hamate.
• Laterally: It attaches to the scaphoid tubercle and the trapezium.