A New CT Method for Assessing 3D Movements in Lumbar Facet Joints and Vertebrae in Patients before and after TDR

Figure 6

3D isosurface for Patient 4 viewed from behind the L5-S1 vertebrae. In the left joint of L5-S1 (red circle) the osteoarthritis is severe with visually displayed osteophytes in this view. Below the joint there are artefacts from the prosthesis in L5-S1 level.