Axis钛合金钢板治疗上胸椎不稳的临床和基础研究

目的观察Axis钛合金钢板治疗上胸椎不稳的近期疗效.方法于正常成人胸椎标本上观察胸椎的解剖特点,测量胸椎的进针点、进针角度、深度和直径.临床采用Axis钛合金钢板治疗上胸椎损伤22例.结果不同节段胸椎椎弓根的解剖特点、进针点、进针方向和深度有所不同.无术中血管、神经损伤.22例平均随访10个月,未见钢板螺钉松脱、断裂等并发症.19例获骨性愈合,脊髓功能除2例按Frankel分级为A级者术后无改善,余均有不同程度恢复.结论 Axis钛合金钢板适合各种原因引起的上胸椎不稳患者的治疗.上胸椎椎弓根固定有一定的风险,但只要熟悉其解剖特点,正确选择进针点、角度和深度,规范操作,此手术是安全的,可获得良好的临床效果.

Clinical and basical investigation on the treatment of superior thoracic vertebral instability with the Axis plate of titanium alloy

Objective To observe the curative effect of treatment of superior thoraxic vertebrae instability with the Axis plate of titanium alloy Methods The screw pricking point, angle, depth and diameter were measured and defined on the anatomical feature of thoraxic vertebrae. 22 cases of superior thoraxic vertebrae instability suffering from a variety of thoraxic spinal disturbance were treated with the Axis plate of titanium alloy. Results The screw prick point,angle,depth and diameter were dissimilar on the different thoraxic vertebral segment. 22 cases were followed up with an average of 10 months. No complication of the injury to the arteries or nerve endings were found. There was no loosening of the plate and screw. There was bone union in 19 cases. The spinal cord function of all patients had improved to different degrees. Conclusion The Axis plate of titanium alloy is suitable for the treatment of superior thoraxic vertebral instability.