Bone-patellar tendon autograft is probably the most widely used graft for ACL reconstruction. Several methods for graft fixation have been described. To avoid intra-articular hardware we adopt biological fixation with a femoral conical press-fit fixation. A prospective study was performed on 40 consecutive active athletes who underwent ACL reconstruction with this technique by the same surgeon between November 1994 and September 1995 (mean follow-up 46 months, range 36-62). Results were evaluated by an independent examiner using radiography, computed tomography, subjective and objective evaluation, and isokinetic and functional strength tests. Assessment using the IKDC knee scoring revealed 85% of the patients with a normal or nearly normal knee joint; Tegner's score was 7.5 preoperatively and 6.0 postoperatively, with 60% of the athletes returning to the preinjury sport and level. No patients had instability, with 90% having less than 3 mm side-to-side difference on computerized analysis. The isokinetic test showed mild quadriceps deficit at 3 and 6 months, with no deficit at final follow-up; four patients complained of anterior knee pain and had a positive kneeling test. We found no graft dislocation. All cases showed radiological evidence of graft integration at 3 months time. Long-term results support this technique asx a simple, cost-effective, and reliable alternative for patellar tendon fixation in ACL reconstruction.
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