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Revision ACL reconstruction using autogenous patellar tendon graft.

Eberhardt C, Kurth AH, Hailer N, Jager A. Knee Surg Sports Traumatol Arthrosc 2000;8(5):290-5.

This retrospective study examined revision anterior cruciate ligament reconstruction using a bone-tendon-bone autograft of the patellar ligament. We followed up 44 patients (mean age 27.9 years) for an average of 41.2 months. Clinical examination with the Lachmann and pivot shift tests showed clearly improved stability; KT-1000 arthrometer measurements had a mean difference of 3.5 mm in side-to-side comparison. The evaluated knee scores were significantly improved (P<0.01); the median Lysholm score was 85 and the median Tegner activity score 5.0 at follow-up. In the IKDC ranking system 75.0% of knees were rated normal or nearly normal (grades A and B). According to a modified Fairbank scale, progression of radiographic signs of osteoarthritis was noted in 36.4%. There was a significant difference (P<0.05) in progression of radiographic signs of osteoarthritis between patients with major (grades III, IV) versus minor (grades I, II) lesions of the articular cartilage surface and between knees with versus without extensive synovitis due to previous synthetic graft reconstruction (P<0.05). Revision anterior cruciate ligament reconstruction using an autogenous patellar tendon graft shows good results with improved knee function compared to the prerevision status and is in line with various operative techniques described in the literature. Progression of osteoarthritis must be expected in patients with major lesions of the articular cartilage surface and knees with long-term extensive synovitis due to previous anterior cruciate ligament reconstruction using synthetic grafts.

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