iliotibial tract (Netter 477): | thickening of the fascia lata crossing the knee anterolaterally to attach on lateral condyle (Gerdy's tubercle). |
articularis genu (Netter 477,480): | small muscle pulling up the upper portion of synovial membrane during knee movement. |
vastus medialis oblique: | is the distal portion of the vastus medialis, helps prevent lateral patella dislocation. |
Pes anserinus insertion (Netter: 476) is the common tendon of sartorius, gracilis and semitendinosus inserting below the medial tibial condyle, provides medial stability. These three muscles have interesting characteristics:
- can flex and medially rotate tibia
- each has a different innervation
- each can act at 2 joints
- each arrives from one of the 3 bones of the pelvis
The Tibiofibular Articulations
The superior tibiofibular joint is a synovial joint where the inferior tibiofibular is a syndesmosis (fibrous) joint. The shaft of the tibia and fibular are connected by the interosseous membrane.