颈椎复合骨块融合的生物力学基础与疗效观察

目的 探讨颈椎前路复合骨植骨块融合的生物力学基础，为临床手术提供合理论依据。方法 利用6具颈椎新鲜标本，采用复合骨块与常规髂骨块制成颈前路减压植骨融合标本，以实验应力分析手段观察和评定颈椎的三维稳定性及术后颈椎强度等生物力学指标的变化。并对临床运用复合骨块行颈椎植骨融合21例进行回故并与常规植骨融合病例对照。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。（P＜0．01）。结论 颈椎前路复合骨块融合方便、稳定。是目前较好的植骨融合方法之一。

Biomechanical basis and clinical aplication of combined bone graft in anterior cervical fusion

Objective To understand the biomechanical basis and evaluate clinical application of combined bone graft in anterior cervical fusion Methods The cervical speciments of 6 cadavers prepared from decompressing and transplanting fusion anterior with combined iliac bone graft.It was evaluated that the cervical stability and intensity by stress determination 21 patients with combined bone graft in anterior cervical fusion were analyzed The comparision of the cervical aligment and hight on disc space between the combine bone graft and the biomechanical standard Result The patient with combine bone graft was significantly greater at cervical height of disc space and stability than routine iliac bone graft.Conclusion The combine bone graft is better method in anterior cervical fusion