Related Experiment Video
Updated: Nov 11, 2025

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
Published on: May 23, 2025
Snapping Extensor Pollicis Longus Tendon Subluxation Secondary to Trapeziometacarpal Instability: Case Report and
Spencer R Anderson1, Lucas M Harrison2, Sunishka M Wimalawansa1
1Department of Orthopaedic and Plastic Surgery, Wright State University Boonshoft School of Medicine, Dayton, Ohio.
Case:
A 20-year-old woman presented with painful, snapping extensor pollicis longus (EPL) tendon subluxation and trapeziometacarpal (TMC) joint instability. Hemi-extensor carpi radialis longus (ECRL) tendon autograft stabilized the TMC joint, reconstructing the 1-2 intermetacarpal ligament. The subluxed EPL tendon was centralized over the dorsal first metacarpal by tightening the metacarpophalangeal radial sagittal band and creating a dorsal first metacarpal "neosheath" pulley using ECRL graft remnant. Postoperative rehabilitation included Spica bracing and immediate thumb interphalangeal joint exercises.
Conclusion:
The patient's pain due to EPL tendon subluxation and TMC joint instability completely resolved. Postoperative thumb range of motion and function were equivalent to the nonaffected side.

