Objective We performed a randomised controlled trial (RCT) in patients undergoing ACL reconstruction (ACLR) using either quadriceps tendon graft (QT) or semitendinosus/gracilis hamstring (STG) graft. We compared subjective outcome (primary outcome) and knee stability, donor site morbidity and function (secondary outcomes). Methods From 2013 to 2015, we included 99 adults with isolated ACL injuries in the RCT. Fifty patients were randomised to QT grafts and 49 to STG grafts and followed for 2 years. Patient evaluated outcomes were performed by subjective International Knee Documentation Committee, Knee Injury and Osteoarthritis Outcome Score, Kujala and Tegner activity scores. Knee laxity was measured with a KT-1000 arthrometer. Donor site morbidity was evaluated by the ‘donor site-related functional problems following ACLR score’. One-leg hop test tested limp strength symmetry. Results At 2-year follow-up, there was no difference between the two graft groups regarding subjective patient outcome, knee stability and reoperations. Also, at 2 years, donor site symptoms were present in 27% of patients in the QT group and 50% of patients in the STG group. The donor site morbidity score was 14 and 22 for the QT and STG, respectively. Hop test demonstrated lower limp symmetry for QT graft than STG graft of 91% and 97% respectively. Conclusion QT graft for ACLR did not result in inferior subjective outcome compared with STG graft. However, QT graft was associated with lower donor site morbidity than STG grafts but resulted in more quadriceps muscle strength deficiency than hamstring grafts. Both graft types had similar knee stability outcome. Trial registration number NCT02173483.

中文翻译：

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股四头肌腱移植物不会导致患者在前交叉韧带 (ACL) 重建后的主观结果低于腘绳肌腱移植物：一项为期 2 年的前瞻性随机对照试验

目的 我们对使用股四头肌腱移植物 (QT) 或半腱肌/股薄肌腘绳肌 (STG) 移植物进行前交叉韧带重建 (ACLR) 的患者进行了一项随机对照试验 (RCT)。我们比较了主观结果（主要结果）和膝关节稳定性、供区发病率和功能（次要结果）。方法 从 2013 年到 2015 年，我们在 RCT 中纳入了 99 名患有孤立性 ACL 损伤的成年人。50 名患者随机接受 QT 移植，49 名患者接受 STG 移植并随访 2 年。患者评估结果由主观国际膝关节文献委员会、膝关节损伤和骨关节炎结果评分、Kujala 和 Tegner 活动评分进行。膝关节松弛度使用 KT-1000 关节计测量。供体部位发病率通过“ACLR 评分后供体部位相关的功能问题”进行评估。单腿跳跃测试测试跛行强度对称性。结果 在 2 年的随访中，两个移植组在主观患者预后、膝关节稳定性和再次手术方面没有差异。此外，在 2 年时，QT 组中 27% 的患者和 STG 组中 50% 的患者出现供体部位症状。QT 和 STG 的供体部位发病率评分分别为 14 和 22。Hop 测试表明 QT 移植物的跛行对称性分别比 STG 移植物低 91% 和 97%。结论 与 STG 移植相比，ACLR 的 QT 移植不会导致较差的主观结果。然而，QT 移植物的供体部位发病率低于 STG 移植物，但导致股四头肌力量缺乏比腘绳肌移植物更多。两种移植物类型的膝关节稳定性结果相似。试验注册号 NCT02173483。