REPAIR OF ACUTE ULNAR COLLATERAL LIGAMENT INJURIES OF THE THUMB METACARPOPHALANGEAL JOINT WITH AN INTRAOSSEOUS SUTURE ANCHOR

Thirty-six consecutive patients with 37 complete tears of the ulnar co llateral ligament of the thumb metacarpophalangeal (MP) joint were tre ated with primary repair using a miniature intraosseous suture anchor. Thirty patients were evaluated by clinical examination or by question naire at an average of 11 months after repair. Loss of interphalangeal joint motion averaged 15 degrees on the involved side versus the othe r side, while loss of MP joint motion averaged 10 degrees. There was n o significant difference on stress testing measurements between repair ed and nonrepaired thumbs. There were no instances of nerve injury, in fection, device failure, or reoperation. The authors concluded that th is is a safe and effective method for repair of complete tears of the ulnar collateral ligament of the thumb MP joint.