Jan 3, 2023 · Anterior and posterior surfaces of the patella. The patella has two main functions: Leg extension – Enhances the leverage that the quadriceps tendon can exert on the femur, increasing the efficiency of the muscle. Protection – Protects the anterior aspect of the knee joint from physical trauma.

Dec 2, 2021 · Patella is a thick, flat, triangular bone, having concave anterior and convex posterior surfaces. The posterior surface articulates with the femur and is marked by two shallow depressions or facets, medial and lateral.

May 25, 2023 · The superior two thirds of the posterior articular surface of patella articulates with the anterior surface of the femoral condyles to form the patellofemoral joint. The lateral articulating surface of the patella is usually larger than the medial articulating surface.

Your patella protects your knee joint and supports muscles, tendons and ligaments. The patella is your kneecap. It’s the bone at the front of your knee joint.

The posterior surface is covered with articular cartilage up to 4 to 5 mm thick. This helps in the dissipation of the force. It presents above a smooth, oval, articular area, divided into two facets by a vertical ridge; the ridge corresponds to the groove on the patellar surface of the femur, and the facets to the medial and lateral parts of ...

Jul 22, 2023 · The patella has two surfaces, anterior and posterior. The anterior surface is subcutaneous and it is palpable in the knee region. The posterior surface features two articular facets, namely lateral and medial, that articulate with the lateral and medial condyles of the femur.

The patella contacts the femur with its inferior pole. At 60-90 degrees knee flexion the patella occupies the intercondylar groove. There is maximum contact between the patella and the intercondylar groove (1/3 of the posterior surface area of the patella).

Oct 27, 2023 · Posterior Patella. This illustration shows the patellar facets articulating with the lateral and medial femoral condyles. The patellar ligament is also shown.

Jul 20, 2024 · The distal pole of the posterior surface of the patella does not functionally form part of the joint and is denuded of cartilage 2. The posterior surface is divided into medial and lateral facets by a vertical ridge.

The patellofemoral joint is a diarthrodial plane joint that consists of the posterior surface of the patella and the trochlear surface of the distal anterior femur. The patella is the largest sesamoid bone in the body.