1) Objective: To study the procedure and indication in the surgical treatment of congenital proximal radio-ulnar joint synostosis.

2) Objective To report a group of uncommon cases, and discuss the impact of distal tibiofibular synostosis on the patients and its clinical significance.

3) Conclusion: Derotation osteotomy is an effective procedure in the treatment of congenital proximal radio-ulnar joint synostosis.

4) The tissue engineering technique in repairing defect can increase the synostosis of prosthesis, and perfect the technique of joint replacement.

5) Objective To analyze the efficacy and complications of the surgical correction of exophthalmos in craniofacial synostosis.