The patellofemoral joint is the area of contact of the undersurface of the patella (kneecap) with the femur bone.

patellofemoral joint
The patellofemoral joint is not a fixed articulation, but rather it is a groove along which the patella glides.



The patellofemoral joint is considered to be a 'compartment', because disease may affect just this one part of the knee articulation. The other two compartments are the two tibiofemoral compartments.

PF joint

The patella - important anatomical relationships

The kneecap or patella is part of a chain of structures that help to straighten the knee.

The concept of arthritis compartments

An overview to help the reader understand issues of arthritis.



Clinical features of symptomatic patellofemoral joint osteoarthritis. Peat G, Duncan RC, Wood LRJ, Thomas E and Muller S. Arthritis Res Ther. 2012; 14(2): R63.

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