The Influence of Lower Extremity and Pelvic Alignment on Accuracy of Hip-Knee-Ankle Radiograph Measurements Before Total Knee Arthroplasty
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 112
- 试验地点
- 1
- 主要终点
- The angle difference between an x-ray and a CT scan
研究概览
简要总结
The aim of this study is to determine the accuracy of long leg standing X-rays with respect to coronal alignment of the knee.
详细描述
Long leg standing x-ray is a routine examination to measure the femoral valgus angle before a total knee arthroplasty. Newer studies have shown that coronal leg alignment influences the rotation of the distal femoral part. This rotation might influence the measurements obtained with a long leg standing x-ray.
The primary purpose of this study is to determine whether there is a significant difference between 2D measurements taken on the x-ray and 3D measurements obtained with a CT scan.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 50 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Knee osteoarthritis scheduled for knee arthroplasty
排除标准
- •previous leg deformities or surgery that changes alignment
结局指标
主要结局
The angle difference between an x-ray and a CT scan
时间窗: Before surgery
The femoral valgus angle, femoral mechanical angle, tibial mechanical angle and hip knee ankle angle are measured separately on the x-ray and on the CT scan. The difference in individual angle is the calculated.
次要结局
未报告次要终点