骶髂关节半错位与CT扫描(附12例CT扫描分析)

Semi-displacement of the Sacroiliac Joint and CT Scan With the Analysis of the CT Scannin8 Results of Twelve Cases

本文通过对12例拟诊为骶髂关节半错位的患者进行 CT 扫描,观察到患侧关节间隙有增宽或变窄或前后位置改变等微细解剖结构的变化,从而证实了骶髂关节半错位或骨错缝的存在。与骨盆 X 线正位片对比,两者病理改变基本相同。因此,笔者认为,在无 CT 条件下,骨盆 X 线正位片下列病理改变可作诊断参考:即患侧骶髂关节间隙较健侧增宽或变窄;耻骨水平支左右高低不等;患侧髂骨关节面密度增高或下缘骨刺增生。再结合临床症状和体征即可确诊。

By applying the CT scanning to twelve patients who were supposed to be suffering fron the semi-displacement of the sacroiliac joint,the author discovered micro-anatomical structural changes of the diseased joint such as the expansion of contraction of its gap,or back and forth position displacement therefore,proved the existance of the sacroililiac joint's semi-displacement of the joint's gap distorsion.Compared with the X-ray photo of the front positioned pelvis,the above pathological changes appear generally the same as that in the CT scanning.Therefore,the author concludes that the following pathological changes on the X-ray photo of the front positioned pelvis can be useful reference in the di- agnosis of the semi-displacement of the sacroiliac joint when the CT is unavailable:The height of the left and right horzontal pubes is different;The surface density of the diseased side of the iliac joint increases of there's osteophyte on its lower edge.Combined with the clinic phenomenon and the patients body fea- tures,the right diagonosis can be obtained.