The tibia and fibula constitute the skeleton of the leg between the knee and ankle. The tibia is the prominent weight-bearing bone, while the fibula helps stabilize the ankle joint. The two bones articulate at the minimally mobile tibiofibular joints and are connected by an interosseous membrane. The tibia consists of the medial and lateral condyles, a shaft, and the medial malleolus process. It articulates at its proximal end with the femur via the condyles. On its anterior surface, the patellar tendon attaches at the tibial tuberosity. Distally, the tibia joins the talus of the foot, supported by the medial malleolus. Several muscles insert into the tibia, allowing movements at the knee and the ankle joint. The fibula is stick-like and does not bear body weight. It constitutes the head, shaft, and lateral malleolus process. The lateral malleolus forms the prominent ankle bulge and joins the talus bone of the foot, providing lateral stability to the ankle.