Gait after Unilateral Total Knee Arthroplasty: Frontal Plane Analysis
Gait after Unilateral Total Knee Arthroplasty: Frontal Plane Analysis
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DOI：
10.1002/jor.21323
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发表时间：
2011-05-01
影响因子：
2.8
通讯作者：
Snyder-Mackler, Lynn
中科院分区：
文献类型：
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作者：
Alnahdi, Ali H.;Zeni, Joseph A.;Snyder-Mackler, Lynn
单侧全膝关节置换术(TKA)后，非手术膝关节常发生骨性关节炎(OA)。TKA术后患者表现出的步态力学改变增加了非手术膝关节的负荷，并使其易于疾病进展。因此，我们的目标是研究单侧全膝关节置换术患者在行走过程中额面运动学和运动学的潜在有害变化。其中31例为全膝关节置换术后6个月，24例为单侧全膝关节置换术后1年，20例为对照组。所有受试者均接受三维步态分析。在TKA组中，与手术膝关节相比，非手术膝关节具有更高的内收角和更高的动态载荷、膝关节内收力矩和冲量。这种增加的负荷可能是非手术膝关节骨关节炎进展的一个潜在原因。TKA组对照膝的负重测量与非手术膝无明显差异，但步行步长较短。虽然非手术膝关节负荷与对照组没有差异，但由于步长较短，TKA组非手术膝关节累积负荷的风险可能更大。(C)2010年整形外科研究会。由Wiley期刊公司出版，J Orthop Res 29：647-652,2011
After unilateral total knee arthroplasty (TKA), osteoarthritis (OA) in the non-operated knee often progresses. The altered gait mechanics exhibited by patients after TKA increase the loading on the non-operated knee and predispose it to disease progression. Therefore, our objective was to examine the potentially detrimental changes in frontal plane kinetics and kinematics during walking in patients who underwent unilateral TKA. Thirty-one subjects 6 months after TKA, 24 subjects 1 year after unilateral TKA, and 20 control subjects were recruited. All subjects underwent 3D gait analysis. In the TKA groups, the non-operated knee had a higher adduction angle and higher dynamic loading, knee adduction moment and impulse, compared to the operated knee. This increased loading may be an underlying reason for OA progression in the non-operated knee. Measures of loading in the control knee did not differ from that of the non-operated knee in the TKA group, but the TKA group walked with shorter step length. While the non-operated knee loading was not different from controls, there may be greater risk of cumulative loading in the non-operated knee of the TKA group given the shorter step length. (C) 2010 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 29:647-652, 2011