Fig. 1From: The patellofemoral morphology and the normal predicted value of tibial tuberosity-trochlear groove distance in the Chinese populationa Patella thickness (PT), patella facet thickness (PFT), patella width (PW), patella lateral facet width (PLFW); b longitudinal length of the whole patella (PLL) and longitudinal length of the articulating surface of the patella (PAL)Back to article page