Tibiofemoral Joint Forces during the Stance Phase of Gait after ACL Reconstruction  

作　　者：Brooke A. Sanford John L. Williams Audrey R. Zucker-Levin William M. Mihalko 

机构地区：[1]Campbell Clinic Department of Orthopaedics and Biomedical Engineering, University of Tennessee Health Science Center, Memphis, USA [2]Department of Biomedical Engineering, University of Memphis, Memphis, USA [3]Department of Physical Therapy, University of Tennessee Health Science Center, Memphis, USA

出　　处：《Open Journal of Biophysics》2013年第4期277-284,共8页生物物理学期刊（英文）

摘　　要：The main goals of anterior cruciate ligament reconstruction (ACLR) are to restore knee function and prevent development of osteoarthritis (OA). However, the incidence of early-onset OA remains higher in patients following ACLR. The purpose of this study was to compare the computed tibiofemoral joint (TFJ) forces and muscle forces of ACLR knees to those of BMI-matched control subjects during the stance phase of gait. We hypothesized that the use of principal component analysis would allow us to characterize alterations in three-dimensional TFJ loads and muscle forces after ACLR as compared to a healthy control population. Of the eight ACLR knees, four displayed an abnormal TFJ compressive force. In three of these four ACLR knees that displayed abnormal compressive forces, one of the major muscles/muscle groups crossing the knee also deviated from the control group. We believe that each subject has a unique response to their injury, reconstructive surgery, and rehabilitation.The main goals of anterior cruciate ligament reconstruction (ACLR) are to restore knee function and prevent development of osteoarthritis (OA). However, the incidence of early-onset OA remains higher in patients following ACLR. The purpose of this study was to compare the computed tibiofemoral joint (TFJ) forces and muscle forces of ACLR knees to those of BMI-matched control subjects during the stance phase of gait. We hypothesized that the use of principal component analysis would allow us to characterize alterations in three-dimensional TFJ loads and muscle forces after ACLR as compared to a healthy control population. Of the eight ACLR knees, four displayed an abnormal TFJ compressive force. In three of these four ACLR knees that displayed abnormal compressive forces, one of the major muscles/muscle groups crossing the knee also deviated from the control group. We believe that each subject has a unique response to their injury, reconstructive surgery, and rehabilitation.

关 键 词：ACL RECONSTRUCTION TIBIOFEMORAL JOINT FORCES GAIT 

分 类 号：R73[医药卫生—肿瘤]