Superior articular surfaces of tibia
Facies articulares superiores tibiae
- Latin synonym: Facies articulares proximales
- Related terms: Superior articular surface
Definition
The superior articular surfaces of tibia are located on the upper portions of the medial and lateral condyles. They encompass the intercondylar area, forming the tibial plateau.
The articular surface of the medial condyle is oval-shaped with a longer anteroposterior axis, while the articular surface of the lateral condyle is nearly circular. Both surfaces are concave at the center and directly articulate with the corresponding condyles of the femur. However, their outer edges are covered by cartilaginous rims known as the medial and lateral menisci. These menisci serve as shock absorbers and contribute to the stability of the knee joint.
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Text written by Muhammad A. Javaid, MD, PhD © 2023 IMAIOS.
Standring, S. and Gray, H. (2016). ‘Chapter 80: Pelvic girdle, gluteal region and thigh’ in Gray’s anatomy The anatomical Basis of Clinical Practice. (41st ed.) New York: Elsevier, pp. 1401-1405.
