Tibia fracture plate 100 days ago, appeared ankle tightness and swelling sudden jump, consider with postoperative braking, ankle joint stiffness and so on. The surgical treatment of tibia fracture is mainly external fixation or cut and replace internal fixation, and the implantation of plate is mainly cut and replace internal fixation of tibia, and the postoperative care mainly focuses on bed rest, and the stiffness of ankle joint may occur after braking. Ankle joint stiffness can lead to ankle dorsiflexion, plantarflexion and other activities are limited, and in severe cases, ankle inversion and eversion activities are also limited, thus affecting walking, and sudden activities can cause ankle spasm, pain, and so on. Postoperative tibial fracture patients are recommended to actively carry out rehabilitation training under the guidance of the doctor and timely review to avoid the emergence of new diseases and adverse effects.