Fixation stability and stress redistribution following metal block use in opening-wedge high tibial osteotomy: a finite element analysis.

ABSTRACT:

Introduction

Medial opening wedge high tibial osteotomy (OWHTO) is a widely performed procedure for correcting varus malalignment and alleviating medial compartment osteoarthritis. Metal block augmentation has been proposed to enhance construct stability by reducing micromotion and stress at the osteotomy site. However, its biomechanical effects under lateral hinge fracture (LHF) and across different osteotomy techniques (uniplanar vs. biplanar osteotomy) remain poorly understood.

Methods

A finite element model of the proximal tibia was constructed using the computed tomography data of a 62-year-old woman. Simulations were conducted under uniplanar and biplanar osteotomy configurations, with and without a 12 mm metal block augmentation. The LHF was modeled for three Takeuchi

SUBMITTER: Nha KW 

PROVIDER: S-EPMC12754675 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature