Knee orthoses are orthopedic devices designed to stabilize the knee joint, limit excessive motion, and reduce mechanical stress on ligaments, menisci, and surrounding soft tissues. By controlling flexion, extension, and lateral instability, these supports promote structured joint alignment while preserving essential mobility. O’tessy knee braces are developed according to biomechanical principles to assist recovery in cases of ligament injury, meniscal conditions, patellar instability, post-traumatic care, and post-operative rehabilitation. Depending on clinical requirements, models range from elastic compression sleeves to reinforced or hinged orthoses providing advanced motion control and structural stabilization.