The Correlation Between Femoral Component Implanting Flexion Angle and Posterior Condyle Offset in Cruciate Retaining Total Knee Arthroplasty
试验速览
- 阶段
- 不适用
- 入组人数
- 200
- 主要终点
- Posterior Femoral Offset Ratio
研究概览
简要总结
The main aim and scope is making measurement and comparison about the femoral component posterior offset under different femoral component implanting flexion angle in cruciate retaining total knee arthroplasty. The results may identify the influence of the flexion component implanting flexion angle on the femoral component posterior offset.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Retrospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •The patients undertaken the primary cruciate retaining total knee arthroplasty;
- •using the curiate retaining total knee arthroplasty prothesis from Biomet and Smith&Nephew;
- •Complete surgery documents and radiologic data,such as standard X-ray postoperative both at antirior-posterior position and medial-lateral position(overlap of the medial and lateral femoral condyle).
排除标准
- •The patients without standard X-ray postoperative both at antirior-posterior position and medial-lateral position(poor overlap of the medial and lateral femoral condyle);
- •Complex primary total knee arthroplasty, using extra component such as trabecular metal,stem or et al.
结局指标
主要结局
Posterior Femoral Offset Ratio
时间窗: 1 week after the surgery
The posterior femoral offset ratio was defined as the maximal thickness of the posterior condyle projecting posteriorly to a straight line drawn as the extension of the posterior femoral shaft cortex, divided by the maximal thickness of the posterior condyle projecting posterior to a straight line drawn as the extension of the anterior femoral shaft contex on the medial-lateral position of the X-ray examination.
Posterior Femoral Offset
时间窗: 1 week after the surgery
The posterior femoral offset was defined as the maximal thickness of the posterior condyle projecting posteriorly to a straight line drawn as the extension of the posterior femoral shaft cortex on the medial-lateral position of the X-ray examination.
次要结局
未报告次要终点