Biomechanical comparison of subsidence performance among three modern porous lateral cage designs.

Background: Cage subsidence remains a major complication after spinal surgery. The goal of this study was to compare the subsidence performance of three modern porous cage designs.

Methods: Three porous cages were evaluated: a porous titanium cage, a porous polyetheretherketone cage and a truss titanium cage.

Choice of Spinal Interbody Fusion Cage Material and Design Influences Subsidence and Osseointegration Performance.

Objective: The objective of the study was to quantify the effect of cage material (titanium-alloy vs. polyetheretherketone or PEEK) and design (porous vs. solid) on subsidence and osseointegration.