Knee stiffness is a common complication of tibial plateau fracture. Commonly used treatments include physical therapy, rehabilitation exercises and surgery. 1. Physiotherapy: Proper massage, acupressure and hot compresses can promote local blood circulation and relieve muscle stiffness around the knee joint. 2. Rehabilitation exercises: according to the degree of fracture recovery, rehabilitation exercises should be carried out under the guidance of doctors, such as active and passive flexion and extension of the knee joint, to prevent adhesion of the muscles around the knee joint. The use of braces for active or passive activities of the lower limbs can prevent muscle atrophy of the lower limbs and gradually restore the strength and function of the joints. 3. Surgical treatment: If the stiffness of the knee joint is serious, surgical release treatment can be considered. After tibial plateau fracture, excessive weight bearing, fall and injury causing re-fracture should be prevented. Start rehabilitation exercises as soon as possible under the guidance of professional doctors to promote fracture healing and prevent joint stiffness.