The effect of tibial rotational deformity on ankle joint loadings: A finite element analysis.

IF 2.4 3区医学 Q2 ORTHOPEDICS

Foot and Ankle Surgery Pub Date : 2026-09-08 DOI:10.1016/j.fas.2026.09.005

Alp Er Tunga Bolukbasi, Onur Kocadal, Burak Cagri Aksu, Korcan Yuksel, Kaan Yardimci

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引用次数: 0

Abstract

Background: Tibial shaft fractures are common, and malrotation is a frequent complication after intramedullary nailing. This study evaluated the effect of tibial malrotation on ankle joint loading using finite element analysis.

Methods: Finite element models were created from Visible Human Project CT data. A distal one-third transverse tibial shaft fracture was fixed with an intramedullary nail. Seven models were analyzed: neutral, 5°, 15°, and 25° internal rotation (IR), and 5°, 15°, and 25° external rotation (ER). A 2500 N axial load was applied, and tibiotalar cartilage and implant stresses were assessed.

Results: Tibiotalar cartilage loading increased with malrotation, peaking in the 25° IR model. Internal rotation consistently produced greater stresses than equivalent external rotation.

Conclusion: Tibial malrotation increases ankle cartilage loading after intramedullary nailing. Internal rotation causes greater biomechanical changes than external rotation and may increase the risk of ankle arthrosis.

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胫骨旋转畸形对踝关节负荷的影响：有限元分析。

背景：胫骨干骨折是常见的，旋转不良是髓内钉后常见的并发症。本研究利用有限元分析评估胫骨旋转不良对踝关节负荷的影响。方法：利用Visible Human Project CT数据建立有限元模型。胫骨远端三分之一横向骨折用髓内钉固定。分析了7种模型：中性、5°、15°和25°内旋（IR）和5°、15°和25°外旋（ER）。施加2500 N轴向载荷，评估胫距软骨和种植体应力。结果：胫骨距软骨负荷随着旋转不良而增加，在25°IR模型中达到峰值。内部旋转始终比等效的外部旋转产生更大的应力。结论：胫骨旋转不良增加髓内钉后踝关节软骨负荷。内旋比外旋引起更大的生物力学变化，并可能增加踝关节病的风险。

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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来源期刊

Foot and Ankle Surgery ORTHOPEDICS-

CiteScore

4.60

自引率

16.00%

发文量

202

期刊介绍： Foot and Ankle Surgery is essential reading for everyone interested in the foot and ankle and its disorders. The approach is broad and includes all aspects of the subject from basic science to clinical management. Problems of both children and adults are included, as is trauma and chronic disease. Foot and Ankle Surgery is the official journal of European Foot and Ankle Society. The aims of this journal are to promote the art and science of ankle and foot surgery, to publish peer-reviewed research articles, to provide regular reviews by acknowledged experts on common problems, and to provide a forum for discussion with letters to the Editors. Reviews of books are also published. Papers are invited for possible publication in Foot and Ankle Surgery on the understanding that the material has not been published elsewhere or accepted for publication in another journal and does not infringe prior copyright.