Clinical Outcome after Anterior Cruciate Ligament Reconstruction Using Hamstring Tendon Autograft: A Prospective Study with 6 Months Follow-Up

Matjaž Sajovic, Igor Vucajnk, Natasa Sipka
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Abstract

Objective: The goal of our study is to show that after single-bundle anatomic ACL reconstruction technique using hamstring tendon autograft (quadrupled semitendinosus and gracillis tendons), there is excellent objective knee stability and the return of flexor muscles strength. Methods: 65 patients aged 13–46 entered our study and were operated with a single bundle ACL reconstruction technique using hamstring tendon autograft. The operation and postoperative protocol were standardized. Patients were evaluated at 3 and 6 months postoperatively with clinical examination, KT–1000 measurements, functional scores (Balance index, Hop index, IKDC, isokinetic testing) and subjective questionnaire (Lysholm score, Tegner score). Results: 65 patients were evaluated 3 and 6 months postoperatively. Lachman test was negative in 92% and the pivot-shift test was negative in 89% of patients at 6 months follow-up. KT–1000 stability testing revealed a difference of 1.05 mm ± 2.83. At final follow-up, overall IKDC evaluation grade A and B were obtained in 96% of patients. The mean Lysholm score, 6 months postoperative was 94. There was no statistically significant difference in the angle of peak torque inflexion at 60°/s at 6 months follow-up. Conclusion: Our study shows that the strength of knee flexion six months after harvesting both hamstring tendons returns. However, there is still a statistically significant difference in knee flexion peak torque, when comparing the operative and non-operative side. Single bundle anatomic ACL reconstruction gives excellent knee stability and good clinical results with normal knee range of motion and returns to the appropriate level of activity.
自体腿筋重建前交叉韧带的临床效果:一项随访6个月的前瞻性研究
目的:本研究的目的是证明采用腘绳肌腱自体移植(四重半腱肌和小股肌腱)进行单束解剖前交叉韧带重建技术后,具有良好的客观膝关节稳定性和屈肌力量的恢复。方法:65例年龄13-46岁的患者采用自体腘绳肌腱单束ACL重建技术。规范手术及术后方案。术后3个月和6个月进行临床检查、KT-1000测量、功能评分(Balance指数、Hop指数、IKDC、等速测试)和主观问卷(Lysholm评分、Tegner评分)评估。结果:65例患者术后3、6个月进行评估。随访6个月,92%的患者Lachman试验为阴性,89%的患者pivot-shift试验为阴性。KT-1000的稳定性测试结果为1.05 mm±2.83。在最后随访时,96%的患者获得了总体IKDC评价等级A和B。术后6个月Lysholm评分为94分。在6个月的随访中,60°/s的峰值扭矩拐点角度无统计学意义。结论:我们的研究表明,膝关节屈曲的力量在收获两个腿筋六个月后恢复。然而,当比较手术侧和非手术侧时,膝关节屈曲峰值扭矩仍有统计学上的显著差异。单束解剖前交叉韧带重建具有良好的膝关节稳定性和良好的临床效果,膝关节活动范围正常,并恢复到适当的活动水平。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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