Milner Clare E
Department of Exercise, Sport, & Leisure Studies, University of Tennessee, 1914 Andy Holt Avenue, Knoxville, TN 37996-2700, USA.
Gait Posture. 2008 Jul;28(1):69-73. doi: 10.1016/j.gaitpost.2007.10.002. Epub 2007 Nov 19.
Osteoarthritis is the most common disease of the joints, and joint replacement surgery is often performed on the major lower extremity joints to relieve pain and improve function. While total knee arthroplasty is successful in restoring some degree of function, there are concerns in relation to the progression of osteoarthritis in other lower limb joints. The purpose of this study was to determine the symmetry of interlimb loading, knee excursion and knee joint stiffness following unilateral total knee arthroplasty. The null hypotheses that vertical loading peak, loading rates, knee flexion excursion and knee flexion stiffness would be the same in the involved and uninvolved limbs after unilateral total knee arthroplasty were tested. Sixteen subjects (eight male and eight female) with previous total knee arthroplasty participated. Kinematic and kinetic data were collected bilaterally during overground walking using a seven camera motion capture system and two force platforms. Following recovery from unilateral total knee arthroplasty, peak vertical ground reaction force, loading rates, knee flexion stiffness and knee flexion excursion are similar in the involved and uninvolved limbs.
骨关节炎是最常见的关节疾病，关节置换手术常应用于主要的下肢关节以缓解疼痛并改善功能。虽然全膝关节置换术成功恢复了一定程度的功能，但对于其他下肢关节骨关节炎的进展仍存在担忧。本研究的目的是确定单侧全膝关节置换术后双侧肢体负荷、膝关节活动度和膝关节僵硬程度的对称性。对单侧全膝关节置换术后患侧和健侧肢体的垂直负荷峰值、负荷率、膝关节屈曲活动度和膝关节屈曲僵硬程度相同这一无效假设进行了检验。16例曾接受全膝关节置换术的受试者（8名男性和8名女性）参与了研究。使用七台摄像机运动捕捉系统和两个测力平台在地面行走过程中双侧采集运动学和动力学数据。单侧全膝关节置换术后恢复后，患侧和健侧肢体的垂直地面反作用力峰值、负荷率、膝关节屈曲僵硬程度和膝关节屈曲活动度相似。
