IRCT20200516047459N7 IRCT 2023-06-12 Esfahan University of Medical Sciences Evaluation of AFO on knee OA Evaluation of new ankle foot orthosis for patients with medial compartment osteoarthritis of the knee and Pilot study for evaluation of it’s effect on joint contact force, gait parameters, function, usability, pain and quality of life 2023-06-22 anticipated 10 Complete https://irct.ir/trial/68326 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Supportive. N/A knee osteoarthritis. This pilot study will be conducted on ten patients with internal compartment osteoarthritis. Sampling will be done by easy non-random method and the subjects will be selected from the patients referred to the orthopedic clinic who meet the conditions to enter the study. Informed and voluntary consent form will be obtained. The diagnosis of osteoarthritis of the knee will be confirmed by a specialist doctor, and information about the patient will be extracted using paraclinical measures, radiography and CT scan. The severity of osteoarthritis of patients will be determined by a specialist based on the Kellgren-Lawrence scale. In order to perform tests related to the measurement of time-spatial variables of walking, range of motion of joints, torques and contact forces of inter-articular surfaces, patients are asked to walk along a certain path in the laboratory and their information will be recorded by cameras. The orthosis covers the area of the sole of the foot up to the lower two-thirds of the leg, and by applying force in this area, it will have an indirect effect on the knee. After evaluating the patient and designing the orthosis and the place of application of force, the orthosis is made.The patient will be taught how to wear the orthosis and wear it for at least 4 hours a day during these 6 weeks.. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Confidentiality of information