摘要
目的：为枢椎椎弓根内固定提供解剖学基础。方法：用１００例枢椎干骨标本，观测：①椎弓根的宽度以及高度；②椎弓根与枢椎椎体间的角度。结果：枢椎椎弓根上部宽度明显大于中、下部，中部宽度双侧平均为６．０±１．６ｍｍ，约８０％的枢椎椎弓根中部宽度大于４．５ｍｍ。但枢椎椎弓根的个体差异较大。结论：枢椎椎弓根的宽度以上宽判定不准确，依中宽大多数枢椎椎弓根适用于内固定。由于椎弓根的个体差异，临床上术前应常规进行枢椎椎弓根的ＣＴ扫描。
Objective:To apply the anatomical basis for axis transpedicular fixation.Methods:The width and height of axial pedicle,the degree between the pedicle and body were measured on 100 dry axis specimens.Results:The width of superior axis pedicle was larger than that of middle pedicle.The width of middle pedicle was 6.0±1.6 mm for both sides of all specimens.When 4.5 mm was taken as the safe criteria for screw fixation,approximately 80% of asix pedicles were suitable for transpedicular screw fixation.However there was a significant variation among the individual axis pedicles.Conclusions:Large axis pedicle was suitable for internal fixation.In view of individual variation,the thin CT scan preoperatively is necessary to confirm the possibiltiy and safety of axis pedicle fixation.
出处
《中国临床解剖学杂志》
CSCD
北大核心
1999年第2期153-154,共2页
Chinese Journal of Clinical Anatomy
