Asymmetrical Lower Extremity Loading Early After Anterior Cruciate Ligament Reconstruction Is a Significant Predictor of Asymmetrical Loading at the Time of Return to Sport

作者：Labanca Luciana^*; Laudani Luca; Menotti Federica; Rocchi Jacopo; Mariani Pier Paolo; Giombini Arrigo; Pigozzi Fabio; Macaluso Andrea

来源：American Journal of Physical Medicine and Rehabilitation, 2016, 95(4): 248-255.

DOI：10.1097/PHM.0000000000000369

• Knee
• Rehabilitation
• Sit to Stand
• Vertical Jump

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.

• 出版日期2016-4