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1.本文就400例骶骨标本及800例有关X光像进行研究。 2.骶骨常见之畸形变异有骶骨节数之增减;隐性脊柱裂及浮棘等,骨胳标本之研究中发现具正常5节者285例,占71.2%,骶尾椎62例,占15.5%,腰椎骶化22例,占5.5%,骶椎腰化13例,占3.3%,其他18例,占4.5%,S_1及S_2有脊柱裂者115例,占28.7%,骶管全部开放者12例,占3%,X光像观察发现具正常5节者640例,占80%,骶尾椎70例,占8.75%,腰椎骶化67例,占8.37%,骶椎腰化7例,占0.87%,S_1及S_2有脊柱裂者153例,占19.1%,骶管全部开放者41例,占5.1%,具浮棘者86例,占10.7%。3.本文另就骶管裂孔的大小各径进行测量,其底之横径平均为18.22mm,底至尖之距离平均为26.7mm,尖部之前后径平均为5.45mm,尖部一股对第四五骶椎处。4.上关节突之关节面最常见者为斜位,但也有不少作冠状位及矢状位,两关节突对称者占65%,不对称者占21.7%,显明不对称者13.3%。5.耳状面之范围多位于上二三节间,两侧对称者占86.7%,不对称者占13.3%。6.骶骨之曲度有甚多变化,上直下屈者占17.2%,均匀屈曲者54%,极度屈曲者11.8%,平直者11%,上伸下屈者6%,X光像具水平骶椎者占4.5%。7.骶骨之棘突显示退化,本文就棘突之数目作了分析。8.本文报告二例严重骶骨先天性畸形。9.本文对各种畸形变异之临床意义作了简要之说明。
1. In this paper, 400 sacral specimens and 800 cases of X-ray images were studied. 2. Sacral common deformity variation sacral joint number of the increase and decrease; recessive spina bifida and spine, etc., the study of skeletal specimens found that the normal section of 285 cases, accounting for 71.2%, sacrococcygeal 62 cases, accounting for 15.5%, lumbar sacralization in 22 cases (5.5%), sacral lumbar spondylosis in 13 cases (3.3%) and other 18 cases (4.5%). There were 115 cases of spondylolisthesis in S_1 and S_2 (28.7% 12 cases, accounting for 3%, X-ray findings with a normal section of 640 cases, accounting for 80%, 70 cases of sacrococcygeal, accounting for 8.75%, 67 cases of lumbar sacralization, accounting for 8.37%, sacral lumbar spine 7 Cases, accounting for 0.87%, S_1 and S_2 have spina bifida 153 cases, accounting for 19.1%, sacral canal open 41 cases, accounting for 5.1%, 86 cases with spines, accounting for 10.7%. The other on the diameter of the sacral hiatus were measured, the average diameter of the bottom of 18.22mm, the average distance from the bottom to the tip of 26.7mm, apex before and after the average diameter of 5.45mm, the tip of a pair The fourth five sacral vertebra. 4. The articular surface of the articular process is the most common oblique, but there are many for coronal and sagittal, symmetrical articular process accounted for 65%, 21.7% of asymmetric, showing 13.3% of asymmetric. 5. The area of the auricular surface is mostly located in the upper two or three nodes, with symmetry of 86.7% on both sides and 13.3% of asymmetry. There are many changes in the curvature of the sacrum, up and down the flexor who accounted for 17.2%, 54% of uniform flexion, extreme flexion of 11.8%, 11% straight, 6% flexion and extension, X-ray level Sacral spiders accounted for 4.5%. 7. Sacral spinous process showed degradation, this article on the number of spinous processes were analyzed. 8. This article reports two cases of severe sacral congenital malformations. 9. This article made a brief description of the clinical significance of various deformities.