Objective To discuss surgical strategy of severe lower cervical fracture and dislocation , put forward anterior diaplasis and internal fixation;
目的： 探讨严重下颈椎骨折、脱位合理的外科治疗策略，提出前路复位，如成功则行前路植骨内固定术；
2
Objective: To evaluate the clinical treatment effect of fractures in central section of face used of inner fixation diaplasis method through scalp coronoid incision.
目的观察面中部骨折，采用头皮冠状切口切开复位内固定治疗的临床效果。
3
Methods Diaplasis the femoral lesser trochanter , reconstructing the femoral calcar, recovering the dissection shape of the femur neck fundus, and then replacing the artificial femoral head.