摘要
目的 观察一种借助于枢椎椎弓根螺钉的枕颈固定装置治疗寰枢关节不稳定的效果。方法 从 2 0 0 1年 6月至 2 0 0 3年 3月用自行设计的一套由椎弓根螺钉和枕颈固定板组成的枕颈固定器 ,治疗了 38例寰枢关节不稳定的患者 ,其中 2 4例有寰椎枕骨化。沿枢椎椎弓峡部的纵轴安置椎弓根螺钉 ,将枕颈固定板预弯后固定于枕骨 ,用螺母锁定固定板与椎弓根钉的过程中 ,利用固定板的曲度 ,使寰枢关节充分复位。植骨于枕骨与枢椎后弓间。结果 36例获得了随访 ,平均 18个月 ,均获得了骨性融合。没有神经、血管损伤和断钉、断板的病例。结论 使用枢椎椎弓根螺钉和枕颈固定板的枕颈固定器不仅有可靠的、短节段固定作用 。
Objective To observe the clinical effect of a occipitocervical fixation systems using C 2 pedicle screws and plates Methods An occipitocervical fixation system was designed Since June 2001 to March 2003,38 patients with instability of atlantoaxial joint underwent reconsctructive surgery using this systems Twenty four patients were associated with congenital occipitalization The pedicle screws were inserted into C 2 pedicles in the direction as its axis The occipitocervicle plate was slightly bent to fit the occipital contour and fixed onto the occiput Hyperflexion alignment of the occipitoatlantoaxial complex was corrected by application of extensional force created by tightening of the nut on the pedicle screws The autogenous cancellous bones were grafted between the occiput and the axis Results In this series,neither vertebral artery nor spinal cord was injuried 36 of 38 cases were followed up for an average of 18 months,all cases achieved solid bony fusion No implant failure was found Conclusions Occipitocervical reconstruction by the combination of C 2 pedicle screws and occipitocervical plate systems can provide sufficient correction of malalignment in the occipitoatlantoaxial region and achieve high fusion rate
出处
《中华外科杂志》
CAS
CSCD
北大核心
2004年第12期707-711,共5页
Chinese Journal of Surgery
