Asymmetrical Lower Extremity Loading Early After Anterior Cruciate Ligament Reconstruction Is a Significant Predictor of Asymmetrical Loading at the Time of Return to Sport
Asymmetrical Lower Extremity Loading Early After Anterior Cruciate Ligament Reconstruction Is a Significant Predictor of Asymmetrical Loading at the Time of Return to Sport
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DOI：
10.1097/phm.0000000000000369
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发表时间：
2016-04-01
影响因子：
3
通讯作者：
Macaluso, Andrea
中科院分区：
文献类型：
--
作者：
Labanca, Luciana;Laudani, Luca;Macaluso, Andrea
目的探讨前十字韧带重建术后早期(1mo)不对称下肢负荷是否可以预测恢复运动时(6mo)的不对称下肢负荷，以及膝关节活动度或最大等长力量等其他早期预测指标是否影响这种关系。术后早期的其他测量包括膝关节活动度(术后2周、1个月和2个月)和膝关节伸屈肌肉的最大等长力(术后2个月)。结果术后1mo坐立任务的肢体对称性指数(LSI)对术后6mo的LSI有显著的独立预测作用。在考虑膝关节活动度和最大等长力量LSI(R-2=0.35，P&t；0.01)后，坐-立任务LSI预测反动跳跃LSI(R-2=0.14 P<；0.01)。结论前交叉韧带重建术后1mo的非对称性下肢负荷是术后6mo非对称性肢体负荷的早期预测因素。
Objectives The aim of this study was to examine whether asymmetrical lower limb loading early after anterior cruciate ligament reconstruction (1 mo) can predict asymmetrical lower limb loading at the time of return to sport (6 mos) and whether other early predictors as knee joint range of motion or maximal isometric strength affect this relationship.Design Ground reaction forces were measured during a sit-to-stand task 1 mo after anterior cruciate ligament reconstruction and a vertical countermovement jump 6 mos after anterior cruciate ligament reconstruction in 58 athletes. Other early postoperative measurements were knee joint range of motion (2 wks, 1 mo, and 2 mos after surgery) and maximal isometric strength of the knee extensor and flexor muscles (2 mos after surgery). Linear regression models were developed using side-to-side limb symmetry index (LSI) of countermovement jump as the dependent variable.Results LSI of sit-to-stand task 1 mo after surgery was a significant independent predictor of LSI of countermovement jump 6 mos after surgery. After accounting for deficits in knee joint range of motion and LSI of maximal isometric strength (R-2 = 0.35, P < 0.01), LSI of sit-to-stand task predicted LSI of countermovement jump (R-2 = 0.14 P < 0.01).Conclusions Asymmetrical lower extremity loading 1 mo after anterior cruciate ligament reconstruction is an early predictor of asymmetrical lower extremity loading 6 mos after surgery.