The situation after six months of external patellar dislocation surgery needs to be different from person to person, generally has been fully recovered, normal down to the ground, specific advice to consult a doctor. Patellar dislocation surgery six months later, generally depends on the method of surgical treatment, if the simple lateral support band release treatment, the patient may be about half a month after the operation can basically walk normally, if it is the medial patellofemoral ligament reconstruction, the postoperative recovery time may be relatively long. Medial patellofemoral ligament reconstruction generally requires the release of the lateral support band and reconstruction of the medial support band. After the operation, the patient has to wear a brace for 6 weeks, gradually increase the angle of flexion and extension of the knee, and after 6 weeks the knee flexion angle will reach 90 degrees, then remove the fixed brace, and carry out the normal activities of the knee, but the patient has to avoid too much activity within three months. As for the specific situation after six months, it should be determined according to the whole recovery process after the surgery of external patellar dislocation and the patient’s own situation.