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KMID : 0361620150500050387
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Journal of the Korean Orthopaedic Association
2015 Volume.50 No. 5 p.387 ~ p.393
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Mid-Term Results after Anterior Cruciate Ligament Reconstruction Using Four-Strand Single Semitendinosus Tendon
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박호원:Park Ho-Won
김희준:Kim Hee-Joon/경희수:Kyung Hee-Soo/한정원:Han Jung-Won
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Abstract
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Purpose: The purpose of this study was to evaluate the mid-term results after anterior cruciate ligament (ACL) reconstruction using a single four-strand semitendinosus tendon.
Materials and Methods: We evaluated 81 patients (84 cases) who had undergone ACL reconstruction using an autologous single four-strand semitendinosus tendon. The patients consisted of 77 men and 4 women with a mean age of 28.8 years (15-59 years) years. Most injuries were sports related, and the largest number of cases occurred during a soccer game (38 cases). Combined injuries were meniscus injuries in 43 cases, cartilage injuries in 6 cases and medial collateral ligament injuries in 8 cases. Femoral fixation device was PINN-ACL CrossPin in 44 cases and extracortical suspension device in 40 cases. Suture tie around a screw post and an additional bioabsorbable screw were used for tibial fixation. The mean time from injury to surgery was 9±16 months (7 days-10 years) and the mean follow-up period was 72.0±8.3 months (53-95 months). Clinical evaluation was performed using Lachman test, pivot-shift test, KT-2000 arthrometer, Lysholm score, Tegner activity score, International Knee Documentation Committee (IKDC) score and return to pre-injury sports activity. Radiologic evaluation was performed using plain radiographs to evaluate joint space narrowing.
Results: All patients showed normal range of motion at the final follow-up. The Lachman test was positive in 4 cases, and pivot-shift test was positive in 3 cases. Lysholm score improved from 76.7 to 92.2, Tegner activity score improved from 5.1 to 6, IKDC score improved from 72.0 to 86.5, and mean anterior translation by KT-2000 improved from 7.4 mm to 2.3 mm, and 80.2μ of patients returned to pre-injury sports activity. No significant differences in joint space narrowing were observed in plain radiographs.
Conclusion: In this study, good results were obtained after ACL reconstructions using the autologous four-strand single semitendinosus tendon with maintaining the joint stability at mid-term follow-up.
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KEYWORD
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anterior cruciate ligament reconstruction, semitendinosus tendon
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