Fig. 3
From: Factors that impact the patellofemoral contact stress in the TKA: a review
Effect of trochlear groove morphology on the patellofemoral stress. The femoral component with a V-shaped trochlear groove reduced the compressive strain on the unresurfaced patella, but when the patella was resurfaced, a femoral component with a curved dome-shaped design reduced the strain in the remaining patellar bone [11]. A V-shaped trochlear groove with unresurfaced patella; B dome-shaped trochlear groove with unresurfaced patella; C V-shaped trochlear groove with resurfaced patella; D dome-shaped trochlear groove with resurfaced patella