Figure 3From: Sagittal plane articulation of the contralateral knee of subjects with posterior cruciate ligament deficiency: an observational studyThe position of the flexion facet centre over the tibial plateau was measured in three steps: the arc and centre (FFC) of the posterior femoral condyle were defined, the tibial plateau was defined, and the distance from the perpendicular through the centre to the posterior tibial cortex was determined.Back to article page