- May 2, 2026The thumb flexor pulley system consists of two annular pulleys (A1 at the MCP joint and A2 at the IP…
- May 2, 2026The flexor digitorum superficialis (FDS) tendon splits into two slips in zone 2 (the digital fibro-osseous sheath within the finger,…
- May 2, 2026The extensor hood (dorsal expansion, extensor apparatus) is the complex dorsal fibrous structure of each finger that integrates the extrinsic…
- May 2, 2026The flexor pollicis longus (FPL) distal tendon inserts into the base of the distal phalanx of the thumb within zone…
- May 2, 2026The extensor digiti minimi (EDM) tendon occupies the fifth extensor compartment at the wrist, ulnar to the fourth compartment (EDC).…
- May 2, 2026The lateral band of the finger extensor mechanism is one of two lateral slips arising from the central slip bifurcation…
- May 2, 2026The oblique retinacular ligament of Landsmeer is a thin fascial band running from the flexor tendon sheath at the proximal…
- May 2, 2026The extensor carpi ulnaris (ECU) tendon occupies the sixth dorsal compartment at the wrist within its own fibro-osseous tunnel on…
- May 2, 2026The dorsal interossei and the palmar interossei insert into the dorsal extensor hood at the level of the proximal phalanx…
- May 2, 2026The extensor pollicis longus tendon changes direction approximately 90 degrees around Lister tubercle at the dorsal distal radius as it…