Fig. 2From: Mechanical performance of porous biomimetic intervertebral body fusion devices: an in vitro biomechanical studyThe finite element (FE) model used to perform mechanical tests. a The FE boundary conditions for the axial compressive tests and torsional tests. b The model to simulate the shear compressive test. c The FE boundary conditions for the subsidence tests. d The model used to calculate stiffness of the intervertebral body fusion device. Polyoxymethylene: POMBack to article page