A finite element model of the shoulder: application to the changes of biomechanical environment induced by postoperative malrotation of humeral shaft fracture.

ABSTRACT:

Objectives

The humerus fracture is one of the most commonly occurring fractures. In this research, we attempted to evaluate and compare the extent of malrotation and biomechanical environment after surgical treatment of humeral shaft fractures.

Methods

A finite element (FE) model of the shoulder was built based on Computed Tomography (CT) data of a patient with a humeral shaft fracture. The muscle group around the shoulder joint was simulated by spring elements. The changes of shoulder stresses under rotation were analyzed. The biomechanics of the normal shoulder and postoperative malrotation of the humeral shaft was analyzed and compared.

Results

During rotations, the maximum stress was centered in the posterosuperior part of the glenoid for the normal shoulder. The

SUBMITTER: Wang C 

PROVIDER: S-EPMC9161483 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature