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Department of Orthopaedic Surgery and Sports Medicine, Kawaguchi Kohgyo General Hospital, Kawaguchi
Department of Orthopaedic Surgery, Tokyo Medical and Dental University, Tokyo, Japan
Presented at the 64th annual meeting of American Academy of Orthopaedic Surgeons, San Francisco, California, February 1997.
Address correspondence and reprint requests to Shintaro Asahina, MD, Sports Medicine Service, Kawaguchi Kohgyo General Hospital, 1-18-15 Aoki Kawaguchi 332, Japan
We investigated the incidence of and risk factors for recurrent tears of repaired menisci in anterior cruciate ligament-reconstructed knees. We observed 63 patients whose menisci had been evaluated at second-look arthroscopy as healed (N = 50) or incompletely healed (N = 13) for an average of 4 years (range, 2 to 9.5). Of the 13 patients with incompletely healed menisci, 6 (46%) required additional meniscal surgery and 2 (15%) had recurrence of meniscal symptoms such as catching or locking. Among the 50 patients with healed menisci, 5 (10%) required additional meniscal surgery and 9 (18%) had recurrence of meniscal symptoms after second-look arthroscopy. The timing of the recurrence of these symptoms was from 12 to 28 months after surgical repair. Of the 11 patients who had undergone additional surgery, 6 had sustained second injuries during sports activities and the other 5 had no identifiable cause of injury. When comparing age, tear sites, rim width, side-to-side differences with KT-1000 arthrometer testing, and the pivot shift test, there were no differences between the group requiring additional surgery, the symptomatic group, and the asymptomatic group. However, the postoperative Tegner activity score of the group requiring additional surgery was statistically significantly higher than the others.
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