Repair of old rupture of the collateral ligament of the metacarpophalangeal joint of the thumb.

概要

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Reconstruction of old ruptures of the collateral ligament of the metacarpophalangeal joint of the thumb was performed using the tendinous portion of the adductor pollicis and abductor pollicis brevis keeping the insertion at the base of the proximal phalanx intact. The procedure has been used in four cases, two old radial collateral ligament ruptures and another two ulnar ruptures. Symptoms and instability were corrected in all cases after seven, nine, thirty-two and fourty-three months of follow-up period respectively.Compared with the reported ligamentous reconstruction of long standing ruptures of the collateral ligament, this procedure has four particular merits: First, the procedure is very easy and operative invasion is small. Second, since there is no possibility of harm to the growth plate in children, and there is no fare of loosening of the joint with growth of the patient. Third, the procedure does not require sacrifice of any donor tendons or fasciae. Fourth, the procedure does not disturb any important anatomical structure, allowing other reconstructive procedures to be performed as a second operation.
西日本整形・災害外科学会の論文