The knee joint, which developed as part of the hind limb in the lineage of the first land-dwelling animals, did not participate in further evolution to the same extent as hands and the brain. Nevertheless, its significance for humans is great, as individuals can only fully express their inherent characteristics of mental capacity and manual dexterity with unimpeded mobility. There are numerous ways in which the gait can be disrupted by changes in the knee joint. Congenital and acquired deformities of the joint components, impairments due to systemic diseases of the organism, inflammation, injuries, tumors, occupational damage, and degenerative processes are among them. Although anatomy, physiology, and the aforementioned alterations have been thoroughly investigated in detailed studies...