骨盆骨性标志点的左右对称性

An investigation of bilateral symmetry of pelvic osteal marker

目的探讨正常成人骨盆骨性标志点的左右对称性。方法随机选取50名骨盆薄层CT扫描正常者的三维重建资料,分别测量双侧耻骨结节外缘-髂前上棘下缘、髂前上棘下缘-髂后上棘最高点的距离,并进行统计学分析。结果耻骨结节外缘-髂前上棘下缘的距离左侧为(120.77±7.81)mm,右侧为(120.61±7.89)mm,差异无统计学意义(P=0.98)。髂前上棘下缘-髂后上棘最高点的距离左侧为(158.18±5.97)mm,右侧为(157.94±6.01)mm,差异无统计学意义(P=0.99)。左、右侧耻骨结节外缘-髂前上棘下缘的距离高度相关(r=0.99,P<0.01)。左、右侧髂前上棘下缘-髂后上棘最高点的距离高度相关(r=0.98,P<0.01)。结论人体骨盆骨性标志点的左、右侧距离无明显差异,健侧数据可作为术前精确定量测量患侧的依据。

Objective To investigate bilateral symmetry of normal demic pelvic osteal marker.Methods The 3D reconstruction data of CT thin-slice scan of 50 normal ripe patients＇ pelvis were selected.Bilateral distances between pubic tubercle＇s exterior border and anterior superior iliac spine＇s inferior border,as well as distancse between anterior superior iliac spine＇s inferior border and posterior superior iliac spine＇s apogee were measured respectively.Statistical analysis was performed to compare the bilateral distances.Results The distance between pubic tubercle＇s exterior border and anterior superior iliac spine＇s inferior border was（120.77±7.8）mm in left side,and（120.61±7.89）mm in right side.No difference was found between the two sides（P=0.98）.The distance between anterior superior iliac spine＇s inferior border and posterior superior iliac spine＇s apogee was（158.18±5.97）mm in left side,and（157.94±6.01）mm in right side.No difference was found between the two sides（P=0.99）.Bilateral distance between pubic tubercle＇s exterior border and anterior superior iliac spine＇s inferior border had high correlation（r=0.99,P0.01）.Bilateral distance between anterior superior iliac spine＇s inferior border and posterior superior iliac spine＇s apogee also had high correlation（r=0.98,P0.01）.Conclusion Bilateral distance of demic pelvic osteal marker has no significant difference.Data in healthy side can provide evidence for preoperative precise quantitative measurement of the morbid side.