摘要
目的探讨三维重建的胸腰椎椎弓根参数对脊柱外科椎弓根镙钉固定的价值。方法选取健康成人脊柱标本6例。使用螺旋CT 2 mm厚加密扫描,对脊柱标本进行三维重建。根据重建模型测算各解剖标志点的参数(包括长度参数和角度参数等)。结果 T9~L4椎弓根宽度4.68~8.70 mm,从上到下总体表现为逐步增加的趋势,但在T12、L1、L2水平椎弓根宽度小于上下椎体;椎弓根高度8.19~12.76 mm,T9~L4椎弓根高度变化不明显,其中T12椎弓根高度最高;T9~L4横向角6.26 o^13.06 o,从上到下总体表现为逐步增加的趋势,而矢状面角度变化规律不明显,大部分在±5 o范围之内。结论胸腰椎三维重建与测量可以从多个角度显示脊柱解剖特点,为制定个性化椎弓根镙钉植入方案提供依据。
Objective To apply the three dimensional reconstruction thoracolumbar pedicle anatomical parameters in spine surgery pedicle screw implantation.Methods 6 healthy specimen spines were chosen and three dimensional spine reconstruction was based on 2 mm CT scan of the spines.The anatomical parameters including length and angle parameters were calculated based on the three dimensional reconstruction images.Results The pedicle width of T9~L4 was 4.68~8.70 mm,and increased gradually from T9 to L4.But the pedicles width of T12,L1 and L2 were smaller than the others.The pedicle height of T9~L4 was 8.19~12.76 mm.There was no significant difference from T9 to L4.The pedicle height of T12 was the biggest among them.The pedicle transverse angle was from 6.26 o to 13.06 o and increased gradually from T9 to L4.But for the pedicle sagittal angle,the difference is not obvious and most of them are in the range of ±5 o.Conclusion Three dimensional reconstruction and calculation of thoracolumbar pedicle can show the anatomical characteristics of the spine and provide evidence for individual pedicle screw implantation.
出处
《中国康复理论与实践》
CSCD
北大核心
2012年第2期134-136,共3页
Chinese Journal of Rehabilitation Theory and Practice
关键词
胸腰椎
椎弓根
解剖
三维
thoracolumbar vertebrae
pedicle
anatomy
three dimensions
