Methods 18 cases of thoraco-lumbar fractures and spondylolisthesis were treated with SF internal fixations.The entrance point was determined according to the vertebral arch position in X-ray.

• 方法应用SF钢棒治疗胸腰椎骨折及滑脱18例，根据正位X线椎弓根投影确定进钉点，根据骨折及滑脱部位选择合适的钢棒。