骶管的临床应用解剖学研究

STUDY OF CLINICAL APPLICATION AND ANATOMY FOR CANALIS SACRALIS

对华北地区出土自然干燥成人２００个骶骨的骶管后壁和骶管裂孔形态进行观察，并测量了骶骨裂孔各径线。结果为骶管后壁完整的１１０例，占５５％，约４５％骶管后壁有裂或孔。骶管裂孔以三角形为多见，约占４４．５％，其次为不规则形、长方形或马蹄形，骶管裂孔高为２４．３５ｍｍ±３．２４ｍｍ，底宽为１５．２ｍｍ±１．３７ｍｍ，骶孔尖矢径小于２ｍｍ的有２例，占１％，并对骶管阻滞麻醉方法进行探讨。

After observing 200 sets of canalis sacralis back walls and the shape of hiatus sacralis,unearthed in the area of North China and dried naturally,and measuring the diameter of every hiatus sacralis,we found that 110 sets of hiatus sacralis are in good state (accounting for 55%),45% of them have cracks and holes at the back wall of the sacrum.Most of hiatus sacralis assume triangle (accounting for 44.5%).Next to this shape are irregular shape,rectangle and U shape.The mean height of hiatus sacralis is 24.35mm±3.24mm;the mean base width is 15.2mm±1.37mm.There are two cases(accounting for 1%)whose sacral hiatus tips have a sagittal diameter less than 2mm.In addition,we have also discussed the method of sacral anesthesia.