| 计算机导航对人工髋关节股骨柄假体置入的精确性验证 |
| |
| 引用本文： | 马若凡,许杰,董彬,李登,丁悦,刘尚礼.计算机导航对人工髋关节股骨柄假体置入的精确性验证[J].中华创伤骨科杂志,2003,11(1):564-568. |
| |
| 作者姓名： | 马若凡 许杰 董彬 李登 丁悦 刘尚礼 |
| |
| 作者单位： | 中山大学附属第二医院骨外科,广州,510120; |
| |
| 基金项目： | 广东省科技计划项目广东省医学科学基金 |
| |
| 摘 要： | Objective To evaluate the accuracy of surgical navigation for localization and orientation of the femoral stem component in total hip arthroplasty, nethods In the hypothesized space, 3-D images of femoral stem were reconstructed. The coronal, sagittal and horizontal axes and scale divisions were established to calculate the displacement and rotation of the stem. Matching between the stem and its 3-D images was performed while the stem was moved in various distances and angles on the digital motion-platform. Then the actual change in the position of the implant and the caleulative data obtained from the navigation system were compared to evaluate the accuracy. Results The mean difference in displacement between the measurements and the actual changes was (1.01 ±0.47) mm, and the mean difference in the measured and actual angles was 1.09°±0.62°. The duplicate test found no significant difference (t = 0.238, P > 0.05). Conclusion Precise placement of the stem in the desired location and orientation can be achieved by the navigation system in the total hip arthroplasty.
|
| 关 键 词： | 关节成形术 置换 髋 假体安装 外科手术 计算机辅助 |
Accuracy of surgical navigation for localization and orientation of femoral stem in total hip arthroplasty |
| |
| Abstract: | |
| |
| Keywords: | Arthroplasty replacement hipProsthesis fittingSurgery computer-assisted |
|
|
