Component orientation measurements in total hip arthroplasty using an inertial measurement unit-based smart trial system.

IF 2.3 4区医学 Q2 ORTHOPEDICS

Arthroplasty Pub Date : 2025-06-25 DOI:10.1186/s42836-025-00312-3

Hao Tang, Yixin Zhou, Baojun Mai, Binjie Zhu, Ping Chen, Yujia Fu, Guangzhi Wang

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引用次数: 0

Abstract

Background: Intraoperative measurement of component orientation represents a basis for optimizing outcomes after total hip arthroplasty (THA). Although the use of computer navigation systems in THA has improved the accuracy of component positioning, they have not gained widespread popularity due to their complexity, time demands, and time-consuming protocols.

Methods: We developed an Inertial Measurement Unit-based Hip Smart Trial system (IMUHST) to assist with intra-operative monitoring of hip posture. An in vitro validation experiment was conducted using a sawbones with a three-dimensional (3D) measurement model as the reference standard.

Results: The absolute mean error, Bland-Altman analysis, and Intra-class Correlation Coefficient revealed that the accuracy and precision of this system meet the threshold for clinical application.

Conclusions: In conclusion, this in vitro validation demonstrates that the IMUHST system provides accurate component orientation measurements while eliminating the cost and complexity of optical navigation, offering a practical solution for widespread adoption. Video Abstract.

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基于惯性测量单元的智能试验系统在全髋关节置换术中的部件方位测量。

背景：术中测量部件方向是优化全髋关节置换术（THA）后结果的基础。尽管在THA中使用计算机导航系统提高了部件定位的准确性，但由于其复杂性，时间要求和耗时协议，它们尚未得到广泛普及。方法：我们开发了一种基于惯性测量单元的髋关节智能试验系统（IMUHST），以协助术中髋关节姿势的监测。以三维测量模型锯骨为参比标准，进行体外验证实验。结果：系统的绝对平均误差、Bland-Altman分析和类内相关系数显示，系统的准确度和精密度满足临床应用的阈值。结论：体外验证表明，IMUHST系统在消除光学导航成本和复杂性的同时，提供了准确的组件方向测量，为广泛采用提供了实用的解决方案。视频摘要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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