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Department of Orthopaedics, University of New Mexico, Albuquerque, New Mexico
Presented at the 2nd World Congress on Sports Trauma/AOSSM 22nd annual meeting, June 1996, Lake Buena Vista, Florida.
Address correspondence and reprint requests to Daniel C. Wascher, MD, University of New Mexico, Health Sciences Center, School of Medicine, Department of Orthopaedics, ACC 2 West, Albuquerque, NM 87131-5296
We reviewed the results in 13 patients who underwent simultaneous allograft reconstruction of both the anterior and posterior cruciate ligaments after a knee dislocation (nine acute and four chronic injuries). Seven patients sustained related medial collateral ligament injuries and six patients had posterolateral complex injuries. Ligament reconstructions were performed using fresh-frozen Achilles or patellar tendon allografts. At follow-up evaluation (mean of 38 months), only one patient described the reconstructed knee as normal. Six patients had returned to unrestricted sports activities and four had returned to modified sports. The average extension loss was 3° (range, 0° to 10°) and average flexion loss was 5° (range, 0° to 15°). The KT-1000 arthrometer measurements at 133 N anterior-posterior tibial load showed a mean side-to-side difference of 4.5 mm (range, 0 to 10) at 20° and 5.0 mm (range, 0 to 9) at 70°. The mean Lysholm score was 88 (range, 42 to 100). International Knee Documentation Committee ratings were six nearly normal, five abnormal, and one grossly abnormal. Two patients required manipulations for knee stiffness. This study demonstrates that reconstruction of both cruciate ligaments can restore stability sufficient to allow sports activity in most patients with knee dislocations, but "normal" results are difficult to achieve.
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