- April 28, 2026The palmar aponeurosis longitudinal bands are the fibrous cords running from the flexor retinaculum to the fingers, providing the palm's…
- April 28, 2026The central slip is the continuation of the EDC tendon that inserts on the dorsal base of the middle phalanx…
- April 28, 2026The APL is the most anterior wrist tendon, forming the radial border of the anatomical snuffbox alongside EPB. Its multiple…
- April 28, 2026The intrinsic minus pattern produces the claw hand deformity of ulnar nerve palsy. With intrinsics paralysed, the EDC (extrinsic extensors)…
- April 28, 2026The five flexor tendon zones guide treatment decisions and predict outcomes. Zone II (no man's land — between the A1…
- April 28, 2026The six extensor compartments are separated by fibrous septa from the extensor retinaculum, each with a specific anatomical relationship. From…
- April 28, 2026The annular pulley system is the fibro-osseous tunnel maintaining the flexor tendons against the phalanges. The A2 and A4 pulleys…
- April 28, 2026The FCU tendon inserts via the pisiform sesamoid, which redirects the force to the hamate and fifth metacarpal base. This…
- April 28, 2026The first CMC joint is the most mobile joint of the hand and the foundation of human thumb opposition. Its…
- April 28, 2026The finger MCP joints are condyloid joints allowing flexion-extension and abduction-adduction. Their collateral ligaments tighten in flexion (the cam-shaped metacarpal…