In the tibiofemoral joint, which part is convex and which is concave?

In the tibiofemoral joint, the correct characterization of the articulating surfaces is that the medial and lateral femoral condyles are convex, while the tibial condyles are concave. This relationship is crucial for understanding how the knee moves and functions during activities such as walking, running, and squatting.

The convex femoral condyles articulate with the concave tibial condyles to allow for significant motion in flexion and extension, as well as some degree of rotation when the knee is flexed. This anatomical arrangement is essential for the stability and mobility of the knee joint.

Understanding this relationship is vital for physical therapists when designing rehabilitation programs or assessing knee injuries, as it influences joint mechanics during different movements, as well as how forces are distributed through the joint during weight-bearing activities.