Sturnieks Daina L, Besier Thor F, Hamer Peter W, Ackland Timothy R, Mills Peter M, Stachowiak Gwidon W, Podsiadlo Pawel, Lloyd David G
School of Human Movement and Exercise Science, The University of Western Australia, Perth, Australia.
Med Sci Sports Exerc. 2008 Jun;40(6):991-7. doi: 10.1249/MSS.0b013e318167812a.
This study investigated the relationship between muscular strength about the knee and knee joint moments during gait in patients who had undergone arthroscopic partial meniscectomy (APM).
One hundred and two APM patients and 42 age-matched nonoperated controls underwent strength testing and three-dimensional gait analysis. Patients were divided into weak and normal subgroups and compared with controls for spatiotemporal, kinematic, and kinetic gait parameters.
Spatiotemporal parameters, kinematics, and sagittal plane kinetics were similar between APM patients and controls. The APM group displayed weaker concentric knee extension and flexion strength compared with controls. The weak APM subgroup had an increased average and peak knee adduction moments over stance compared with the APM subgroup with normal strength levels and controls. The normal strength APM subgroup had a larger peak knee adduction moment in early stance compared with controls.
Achieving normal lower limb muscle strength following APM appears important to resume normal frontal plane loading of the knee while walking.
本研究调查了接受关节镜下部分半月板切除术（APM）的患者在步态过程中膝关节周围肌肉力量与膝关节力矩之间的关系。
102例接受APM的患者和42例年龄匹配的未手术对照者接受了力量测试和三维步态分析。患者被分为力量较弱组和正常组亚组，并与对照组在时空、运动学和动力学步态参数方面进行比较。
APM患者和对照组之间的时空参数、运动学和矢状面动力学相似。与对照组相比，APM组表现出较弱的膝关节向心性伸展和屈曲力量。与力量水平正常的APM亚组和对照组相比，力量较弱的APM亚组在站立期的平均和峰值膝关节内收力矩增加。与对照组相比，力量正常的APM亚组在站立早期有更大的峰值膝关节内收力矩。
APM术后获得正常的下肢肌肉力量对于在行走时恢复膝关节正常的额状面负荷似乎很重要。
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