Fig. 5From: The effect of patellar facet angle on patellofemoral alignment and arthritis progression in posterior-stabilized total knee arthroplasty without patellar resurfacingProgression of osteosclerosis. Progressive osteosclerosis was observed in the radiograph taken before the surgery (a), 1 year after the surgery (b), and 3 years after the surgery (c)Back to article page