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全髋关节置换术中患者特异性撞击分析的术前分析模型

A Preoperative Analytical Model for Patient-Specific Impingement Analysis in Total Hip Arthroplasty.

作者信息

Gu Yolanda, Pierrepont Jim, Stambouzou Catherine, Li Qing, Baré Jonathan

机构信息

School of Aerospace, The University of Sydney, Mechanical and Mechatronic Engineering, Building J07, Sydney, NSW 2006, Australia.

Optimized Ortho, 17 Bridge Street, Pymble, NSW 2073, Australia.

出版信息

Adv Orthop. 2019 Jul 1;2019:6293916. doi: 10.1155/2019/6293916. eCollection 2019.

DOI:10.1155/2019/6293916
PMID:31355005
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6634079/
Abstract

Prosthetic impingement is important to consider during total hip arthroplasty planning to minimise the risk of joint instability. Modelling impingement preoperatively can assist in defining the required component alignment for each individual. We developed an analytical impingement model utilising a combination of mathematical calculations and an automated computational simulation to determine the risk of prosthetic impingement. The model assesses cup inclination and anteversion angles that are associated with prosthetic impingement using patient-specific inputs, such as stem anteversion, planned implant types, and target Range of Motion (ROM). The analysed results are presented as a range of cup inclination and anteversion angles over which a colour map indicates an impingement-free safe zone in green and impingement risk zones in red. A validation of the model demonstrates accuracy within +/- 1.4° of cup inclination and anteversion. The study further investigated the impact of changes in stem anteversion, femoral head size, and head offset on prosthetic impingement, as an example of the application of the model.

摘要

在全髋关节置换手术规划过程中，假体撞击是一个需要考虑的重要因素，以尽量降低关节不稳定的风险。术前对撞击进行建模有助于为每个个体确定所需的组件对线。我们开发了一种分析性撞击模型，该模型结合了数学计算和自动计算模拟来确定假体撞击的风险。该模型使用患者特定的输入信息，如柄前倾、计划植入的假体类型和目标活动范围（ROM），评估与假体撞击相关的髋臼倾斜度和前倾角。分析结果以一系列髋臼倾斜度和前倾角呈现，在这些角度范围内，彩色地图用绿色表示无撞击安全区，用红色表示撞击风险区。对该模型的验证表明，髋臼倾斜度和前倾角的准确性在±1.4°以内。作为该模型应用的一个例子，该研究进一步调查了柄前倾、股骨头大小和头偏移量的变化对假体撞击的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7ead/6634079/44eb64572bdc/AORTH2019-6293916.011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7ead/6634079/70b9dcdb3f3f/AORTH2019-6293916.005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7ead/6634079/af62ddfd62c2/AORTH2019-6293916.006.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7ead/6634079/bc8a32c9f2d9/AORTH2019-6293916.009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7ead/6634079/248195a9f9af/AORTH2019-6293916.010.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7ead/6634079/839e2b589c69/AORTH2019-6293916.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7ead/6634079/8846d3947473/AORTH2019-6293916.003.jpg
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