Finite element analysis of short-segment fixation combined with expandable polyetheretherketone vertebral body replacement in osteoporotic vertebrae.

ABSTRACT:

Background

Combined anterior-posterior fixation offers significant advantages in reconstructing spinal stability, correcting kyphotic deformities, and achieving neural decompression. However, osteoporosis increases the surgical risks associated with this technique, and relevant studies remain limited. This study aimed to analyze the biomechanical characteristics of posterior short-segment fixation combined with expandable polyetheretherketone (PEEK) vertebral body replacement (VBR) in osteoporotic spines, with the goal of optimizing surgical strategies and material selection.

Methods

Finite element analysis (FEA) was conducted to evaluate the biomechanical performance of T12 vertebral body replacement. CT images of the T10-L2 segment were imported into Geomagic Warp to const

SUBMITTER: Chen L 

PROVIDER: S-EPMC12366061 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature