Eo, Surak Locking of the index finger metacarpophalangeal joint due to a chronic osteochondral fracture fragment of the metacarpal head: a case report. [electronic resource] - Hand (New York, N.Y.) Dec 2012 - 450-3 p. digital Publication Type: Journal Article ISSN: 1558-9447 Standard No.: 10.1007/s11552-012-9446-9 doi