基于有限元分析的钢板对胫骨中段骨折固定效果的研究

[Study on the Fixation Effect of Plate in the Middle Tibial Fracture Based on Finite Element Analysis].

作者信息

Yao Tian-Ping, Shi Bin, Zhou Kai-Hua

机构信息

Shanghai Institute of Medical Device Testing, Shanghai, 201318.

ShangLi International Standards Co. Ltd., Shanghai, 201707.

出版信息

Zhongguo Yi Liao Qi Xie Za Zhi. 2022 May 30;46(3):259-264. doi: 10.3969/j.issn.1671-7104.2022.03.005.

DOI:10.3969/j.issn.1671-7104.2022.03.005

PMID:35678432

Abstract

In this study, tibial shaft fracture has been treated with implants as numerically to investigate the stress behavior and the effect of plate material, position and length under pressure load. Plates of stainless steel, titanium alloy(Ti6Al4V), or CF-PEEK(CF50) were used to fix the tibial shaft comminuted fracture in different location and different working length. The maximum stress, the maximum micromotion of fracture and the stress shielding of cortex bone were analyzed. CF50 is more ideal biomechanical fixation material than traditional metal material for the treatment of tibial shaft comminuted fractures. In the treatment of tibial shaft comminuted fracture, lateral position and with relatively long working length of the plate have the advantages in micromotion, stress and stress shielding rate of the fracture end.

摘要

在本研究中，已使用植入物对胫骨干骨折进行了数值治疗，以研究压力载荷下的应力行为以及钢板材料、位置和长度的影响。使用不锈钢、钛合金（Ti6Al4V）或CF-PEEK（CF50）钢板在不同位置和不同工作长度固定胫骨干粉碎性骨折。分析了最大应力、骨折的最大微动以及皮质骨的应力遮挡。对于胫骨干粉碎性骨折的治疗，CF50是比传统金属材料更理想的生物力学固定材料。在治疗胫骨干粉碎性骨折时，钢板置于外侧且工作长度相对较长在骨折端的微动、应力和应力遮挡率方面具有优势。