Medially positioned plate in first metatarsophalangeal joint arthrodesis.

ABSTRACT:

Objective

The purpose of this study was to biomechanically compare the stability of first metatarsophalangeal (MTP1) joint arthrodesis with dorsally and medially positioned plates.

Methods

A physical model of the MTP1 joint consists of printed synthetic bones, a titanium locking plate and screws. In the experiments, samples with dorsally and medially positioned plates were subjected to loading of ground load character in a universal testing machine. Force-displacement relations and relative displacements of bones were recorded. The obtained results were used to validate the corresponding finite element models of the MTP1 joint. Nonlinear finite element simulations of the toe-off phase of gait were performed to determine the deformation and stress state in the MTP1 joint for

SUBMITTER: Witkowski W 

PROVIDER: S-EPMC8635389 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature