X-ray
Frontal
Lateral
Skyline
The intercondylar notch is widened with bulbous and flattened condylar surfaces and squaring of the inferior patellar margin. The right knee demonstrates periarticular osteoporosis (likely due to hyperaemia), symmetrical loss of joint cartilage involving all compartments, periarticular erosions, subchondral cysts, osteophytosis and sclerosis.