Lateral X-ray film and CT scanning showed free bone fragments and defect of posteroinferior angles of the vertebrae. 影像学检查见腰椎椎体后下缘骨缺损及游离骨块突入椎管内。
The comparision of the cervical aligment and hight on disc space between the combine bone graft and the biomechanical standard. 结果复合骨块融合组的生物力学性能均优于常规髂骨融合组。