摘要
目的：为颈部ＳＰＲ 提供可靠的后根鉴别的形态学依据，探讨颈部限制性椎板切除ＳＰＲ 的可行性。方法：在２０ 例防腐灌注红色乳胶的成人颈椎标本上，对Ｃ４ ～Ｔ１ 节段后根的位置、粗细和长度进行形态学观测。另１ 具男性脊柱标本采用限制性椎板切除，摹拟临床颈部ＳＰＲ 术式，观察各节段脊神经后根的暴露情况。结果：各节段的后根在齿状韧带的后方向外下方斜行。Ｃ４～Ｔ１ 各节段后根在冠状面呈近似平排，自上而下依次为Ｃ４ ～Ｔ１ 的后根。从Ｃ４ 到Ｃ６，后根的直径逐渐增大，以Ｃ６ 的后根为最粗大，后又逐渐减小。各节段后根在出硬脊膜处的位置关系仍保持冠状位的上、下平排关系。结论：各节段脊神经后根在冠状位呈上、下排列，缺少集中行走。限制性椎板切除并不能暴露Ｃ５ ～Ｔ１ 节段的后根。颈部ＳＰＲ 最少需要切除３ 个半椎板。
To provide morphological bases for identifying the segments of posterior roots during cervical SPR.Methods:The posterior roots of C 4～T 1 were measured and observed on 21 antiseptic cervical spine specimens(male 16,female 4)perfused with red emulsion.The posterior roots of C 4～T 1 were identified after the cervical SPR was imitated in one specimens.Results:The posterior roots of C 4～T 1 were parallel successively in the coronal section.The posterior roots became big from C 4 to C 6 but become small from C 6 to T 1 gradually,of all the posterior roots the C 6 was the biggest.The length of the posterior root gradually increased in the dura from C 4 to T 1.Conclusions:The posterior roots were parallel in proper order in the coronal section.The C 5～T 1 posterior roots could not be exposured in the limited laminectomy of cervical SPR.
出处
《中国临床解剖学杂志》
CSCD
北大核心
2000年第1期11-13,共3页
Chinese Journal of Clinical Anatomy
基金
广东省自然科学基金
