Figure 2. Top, anteroposterior weight-bearing views. Bottom, patella "sunrise" views. Note the medial tibiofemoral joint collapse, osteophytes, subchondral sclerosis, and patellofemoral joint involvement.





Figure 3


Figure 3. Top, anteroposterior weight-bearing views. Bottom, lateral views. Note the lateral tibiofemoral joint collapse, osteophytes, subchondral sclerosis, and patellofemoral joint involvement.