Establishment and validation of a three-dimensional finite element model for degenerative lumbar scoliosis.

ABSTRACT:

Objective

The objective of this study was to construct a three-dimensional finite element model of degenerative lumbar scoliosis (DLS) and validate its effectiveness, providing a reliable theoretical tool for optimizing surgical plans and biomechanical research.

Methods

A 3D finite element model (FEM) of Lenke-Silva type IV DLS was constructed from patient CT data using Mimics, Geomagic Warp, SolidWorks, and ANSYS, incorporating cortical bone, cancellous bone, and intervertebral discs with defined material properties and contact relationships. Geometric validation was performed by comparing vertebral alignment and offset with radiographic measurements, while biomechanical validation involved applying a 400N axial load and 7.5 Nm torque (flexion/extension, lateral bending, an

SUBMITTER: Guo W 

PROVIDER: S-EPMC12695814 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature