The most common indication for osteotomy surgery is pain in the knee joint of degenerative origin accompanied by varus of the tibia. Varus deformity of the tibia can be initially diagnosed when the knees are separated by a minimum of 4 cm with the joint ankle joints. A popliteal osteotomy makes it possible to correct the deformed axis of the limb and thus relieve the painful structures in the medial compartment of the knee.