Gonarthrosis

Joint space narrowing

Significant medial femorotibial joint space narrowing.

Subchondral sclerosis

Gonarthrosis

Linear hyperdensity

Significant medial femorotibial compartment subchondral sclerosis.

Medial osteophytes

Gonarthrosis

Bone irregularities

Marginal ostephytes on the medial side.

Subluxation

Tibiofemoral luxation

Bone misalignment

On the right, there is a 5 mm lateral subluxation of the tibia, compared to the femur and a small varus angulation of 5°.

Femoropatellar arthrosis

Joint space narrowing

Moderate to severe femoropatellar arthrosis with osteophytes and joint space narrowing. The patella remains in a good anatomic position relative to the femur.

Lateral osteophytes

Gonarthrosis

Bone irregularities

Slight degenerative changes of the lateral compartment with osteophytes.

Gonarthrosis

Linear hyperdensity

Significant left medial femorotibial joint narrowing. Lateral and femoropatellar compartments are also, but less severely, involved. Osteophytes can be seen.

Intra-articular swelling

Linear hypodensity

Bilateral joint effusion.