Preliminary exploration of the biomechanical properties of three novel cervical porous fusion cages using a finite element study.

ABSTRACT:

Background

Porous cages are considered a promising alternative to high-density cages because their interconnectivity favours bony ingrowth and appropriate stiffness tuning reduces stress shielding and the risk of cage subsidence.

Methods

This study proposes three approaches that combine macroscopic topology optimization and micropore design to establish three new types of porous cages by integrating lattices (gyroid, Schwarz, body-centred cubic) with the optimized cage frame. Using these three porous cages along with traditional high-density cages, four ACDF surgical models were developed to compare the mechanical properties of facet articular cartilage, discs, cortical bone, and cages under specific loads.

Results

The facet joints in the porous cage groups had lower

SUBMITTER: Xu Z 

PROVIDER: S-EPMC10636970 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature