Methods: thirty-six cases of femoral shaft fractures treated with inter-locking intrfracture were locked with nails by a tris-dimension aim implement.

• 方法：对使用交锁髓内钉治疗36例胫骨骨折的疗效进行回顾性分析。手术采用闭合、小切口或有限切开复位，用三维瞄准器锁定骨折远、近端。