references property is the same as the order of the tokens appearing in the normalize value. if for any of the token values, no element or more than one element is found, the references property has no value. 4.7.4 namespace fixup the in-scope namespaces property ensures that namespace scope is preserved...
with knee flexion (this replicates the native knee where the mfc has a larger radius). advantages. the cr-tka preserves femoral bone by not cutting away a central groove for the tibial post to track ("box cut"). the pcl also stabilizes the knee in flexion and may keep a tighter flexion gap when preserved...