The patella sits in which joint?

The patella sits in which joint?

• A. Tibiofemoral Joint
• B. Patello-Femoral Joint
• C. Hip Joint
• D. Sacroiliac Joint

Answer: (B)

The patella forms a joint with the femur known as the patellofemoral joint. Its posterior surface sits in the femoral trochlear groove and tracks as the knee bends and straightens, functioning to increase the quadriceps’ leverage and distribute forces. This is distinct from the main knee hinge between the femur and tibia (tibiofemoral joint). The hip and sacroiliac joints are located higher up in the pelvis and are not involved with the patella. So the patellofemoral joint is the correct articulation for the patella.

The patella forms a joint with the femur known as the patellofemoral joint. Its posterior surface sits in the femoral trochlear groove and tracks as the knee bends and straightens, functioning to increase the quadriceps’ leverage and distribute forces. This is distinct from the main knee hinge between the femur and tibia (tibiofemoral joint). The hip and sacroiliac joints are located higher up in the pelvis and are not involved with the patella. So the patellofemoral joint is the correct articulation for the patella.