Applied anatomical studying on corona mortis in Chinese        ZHOU Lu-ke，ZHAO Yu，SUN Shan-quan, et al. Department of Vascular Surgery，the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
Corresponding author: ZHAO Yu, E-mail: zhaoyu@cta.cq.cn
Abstract    Objective    To observe the incidence and adjacent to the corona mortis, so as to provide anatomic basis for the surgical of ilioinguinal approach. Methods    One hundred and two hemipelvises were assessed in 51 embalmed cadavers（37 males and 14 females）between November 2011 and February 2012 in the First Affiliated Hospital of Chongqing Medical University. Bilateral dissection was performed in every case with a total of 102 sides. The relationship between the corona mortis and external iliac vessels system was indentified and the distance from the corona mortis to the symphysis pubis was measured. Results    Fifty-one human adult cadavers were dissected bilaterally (102 hemipelvises), with evidences of the vascular elements at the level of the superior pubic branch in 39 cases (66 sides, 76.5%) of hemipelvises. Among them, the average of distance from the corona mortis to the symphysis pubis was (52.00±12.29) mm in male and (55.39±11.86) mm in female. There was no significant difference in the incidence and distance from communicating vessels to the symphysis pubis between male and female（P＞0.05）. Conclusion    The incidence of an anomalous obturator artery forming the arterial corona mortis among Chinese is 76.5%. The corona mortis crossing over the iliopubic rami should be taken attention during the ilioinguinal surgery.