肘部旋转影响旋转公式的准确性:对修改后的方法进行验证
Yong Liu1,2, Xiaoju Liang1, Jianping Sun1
1Pediatric Orthopedic Hospital, Honghui Hospital, Xi'an Jiao tong University, Xi'an, 710000, China.
BMC musculoskeletal disorders
|January 6, 2025
概括
一个新的公式准确地测量了儿科上骨骨折 (SCHF) 的旋转位移,即使是肘部旋转. 这种修改的旋转计算公式 (MRCF) 改进了原始的旋转计算公式 (PRCF),以更好地评估骨折.
科学领域:
- 儿科整形外科 儿科整形外科
- 儿科创伤 儿童创伤
- 放射性测量技术的使用
背景情况:
- 骨顶骨折 (SCHF) 是儿童最常见的肘部骨折.
- 封闭式缩减后的剩余旋转位移可能会影响结果.
- 现有的测量公式不考虑肘部旋转对精度的影响.
研究的目的:
- 研究肘部旋转对原始旋转计算公式 (PRCF) 准确性的影响.
- 提出和验证一个修改的旋转计算公式 (MRCF) 以提高准确性.
- 评估MRCF在测量SCHF中旋转位移的可靠性.
主要方法:
- 使用Mimics软件,用模拟横向SCHF进行儿科远端腰骨的3D重建.
- 射线光学模拟与轴旋转位移 (0-45°) 和模拟的内部/外部肘部旋转.
- 由五名医生使用PRCF和MRCF进行的测量和计算.
主要成果:
- 在PRCF中,平均误差为17.98°±12.31°,最大误差为46.46%.
- MRCF表现出大幅提高的准确性:平均误差为2.04° (内部) 和2.74° (外部) 的旋转.
- MRCF实现了高准确率:68-94%的测量在内部旋转时在3-5°的误差范围内,在外部旋转时在3-8°的误差范围内达到57-98%.
结论:
- 随着肘部旋转的增加,PRCF的准确性下降,这证实了研究的假设.
- MRCF提供了准确和稳定的旋转位移测量,不管肘部的旋转.
- 在SCHF中,MRCF对于精确评估旋转位移至关重要,有助于理解预后.
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