Tibialis posterior

  • The tibialis posterior (also tibialis posterior muscle, posterior tibial muscle, latin: musculus tibialis posterior) is a deep muscle of the posterior group of the lower leg.

    The tibialis posterior originates from the posterior surfaces of the tibia and fibula, it is also attached to the interosseous membrane. The tibialis posterior inserts onto the navicular and medial cuneiform bones.

    The main function of the tibialis posterior is flexion, adduction and supination of the foot. It also plays an important role in stabilizing the lower leg.