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首页> 外文期刊>International Orthopaedics >Sagittal placement of the femoral component in total knee arthroplasty predicts knee flexion contracture at one-year follow-up
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Sagittal placement of the femoral component in total knee arthroplasty predicts knee flexion contracture at one-year follow-up

机译：股骨组件在全膝关节置换术中的矢状位置预测在一年的随访中膝关节屈曲挛缩

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Purpose Flexion contracture has been shown to impair function and reduce satisfaction following total knee arthroplasty (TKA). The aim of this study was to identify modifiable intraoperative variables that predict post-TKA knee extension. Methods Data was collected prospectively on 95 patients undergoing total knee arthroplasty, including pre-operative assessment, intra-operative computer assisted surgery (CAS) measurements and functional outcome including range of motion at one year. Patients were divided into two groups: those with mild flexion contracture (> 5°) at the one-year follow-up and those achieving full extension. Results The sagittal orientation of the distal femoral cut differed significantly between groups at the one-year follow-up (P=0.014). Sagittal alignment of greater than 3.5° from the mechanical axis was shown to increase the relative risk of a mild flexion contracture at one-year followup by 2.9 times, independent of other variables. Conclusion Increasing the sagittal alignment of the distal femoral cut more than 3.5° from the mechanical axis is an independent risk factor for clinically detectable flexion contracture one year from index procedure.
机译：目的研究表明，全膝关节置换术（TKA）后屈曲挛缩会损害功能并降低满意度。这项研究的目的是确定可预测术中可预测TKA膝关节后伸的变量。方法前瞻性收集95例行全膝关节置换术的患者的数据，包括术前评估，术中计算机辅助手术（CAS）测量以及包括一年活动范围在内的功能结局。将患者分为两组：在一年的随访中患有轻度屈曲挛缩（> 5°）的患者和达到完全伸展的患者。结果在一年的随访中，各组股骨远端切开的矢状方向差异显着（P = 0.014）。矢状位距机械轴的位置大于3.5°，表明在一年的随访中，轻度屈曲挛缩的相对风险增加了2.9倍，而与其他变量无关。结论股骨远端离机械轴的矢状面对准增加超过3.5°是从指数手术一年后临床可检测到的屈曲挛缩的独立危险因素。

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