Ohji Shunsuke, Aizawa Junya, Hirohata Kenji, Ohmi Takehiro, Kawasaki Tomoko, Koga Hideyuki, Yagishita Kazuyoshi
Clinical Center for Sports Medicine and Sports Dentistry Tokyo Medical and Dental University.
Department of Physical Therapy Juntendo University.
Int J Sports Phys Ther. 2024 Oct 1;19(10):1204-1215. doi: 10.26603/001c.123479. eCollection 2024.
After anterior cruciate ligament reconstruction (ACLR), asymmetry is likely to persist in single-leg (SL) vertical jump and drop jump performance than in SL hop distance. However, its relationship with the return to sport (RTS) remains unclear.
HYPOTHESIS/PURPOSE: This study aimed to determine the association between vertical jump performance after primary ACLR using hamstring tendon autograft and RTS at a pre-injury competitive level.
Cross-sectional study.
Patients who underwent primary ACLR using hamstring tendon autograft were recruited for this study. Participants who returned to pre-injury competition after ACLR were recruited at least eight months postoperatively. Knee condition was assessed, including joint laxity, range of motion, muscle strength, and knee pain intensity during sports activities. Performance variables were also assessed, including SL hop distance, jump height in SL vertical jump, and reactive strength index (RSI; jump height/contact time) in SL drop jump. Participants were asked to subjectively report whether they had returned to the same level of competition as pre-injury and their perceived sport performance intensity. Those who answered "Yes" to the dichotomous question and had a postoperative subjective athletic performance of > 80% were categorized into the Yes-RTS group. The primary outcome was the ability to achieve RTS at the preinjury level.
Sixty-five patients (female, 35; male, 30) at 13.0 (13.0) [median (interquartile)] months after ACLR participated in this study. Thirty-nine (60%) were assigned to the Yes-RTS group. Regarding knee conditions, the No-RTS group had a significantly higher knee pain intensity, as assessed using a numerical rating scale (p<0.001, effect size -0.45). In the performance tests, the No-RTS group exhibited a significantly lower limb symmetry index of RSI during the SL drop jump compared to the Yes-RTS group (p=0.002, effect size 0.81).
Patients unable to achieve RTS after primary ACLR using hamstring grafts are more likely to exhibit asymmetric performance during the SL drop jump test, suggesting the significance of assessing jump symmetry when evaluating post-ACLR rehabilitation success.
3c.
在前交叉韧带重建（ACLR）后，单腿（SL）垂直跳和单腿下落跳的表现比单腿跳远距离更可能持续存在不对称性。然而，其与恢复运动（RTS）的关系仍不清楚。
假设/目的：本研究旨在确定使用腘绳肌腱自体移植进行初次ACLR后垂直跳表现与伤前竞技水平下RTS之间的关联。
横断面研究。
招募接受了使用腘绳肌腱自体移植进行初次ACLR的患者参与本研究。在术后至少8个月招募了在ACLR后恢复到伤前比赛水平的参与者。评估膝关节状况，包括关节松弛度、活动范围、肌肉力量以及运动活动期间的膝关节疼痛强度。还评估了表现变量，包括单腿跳远距离、单腿垂直跳的跳跃高度以及单腿下落跳的反应力量指数（RSI；跳跃高度/接触时间）。要求参与者主观报告他们是否已恢复到与伤前相同的比赛水平以及他们感知到的运动表现强度。对二分问题回答“是”且术后主观运动表现>80%的参与者被归类为恢复运动组（Yes-RTS组）。主要结果是在伤前水平实现RTS的能力。
65例患者（女性35例，男性30例）在ACLR后13.0（13.0）[中位数（四分位间距）]个月参与了本研究。39例（60%）被分配到恢复运动组。关于膝关节状况，使用数字评分量表评估时，未恢复运动组的膝关节疼痛强度明显更高（p<0.001，效应量-0.45）。在表现测试中，与恢复运动组相比，未恢复运动组在单腿下落跳期间的RSI肢体对称指数明显更低（p=0.002，效应量0.81）。
使用腘绳肌腱移植进行初次ACLR后无法实现RTS的患者在单腿下落跳测试中更可能表现出不对称表现，这表明在评估ACLR后康复成功时评估跳跃对称性的重要性。
3c。
