Study of Anatomical Characteristics of Accessory Renal Artery in Chinese Adults

Objective:To study the anatomical characteristics of accessory renal artery in Chinese adults for clinical application.Methods:A total of 105 Chinese mature cadavers(75 males and 30 females)by formalin treatment were anatomized.Whether there was accessory renal artery was observed.The number,starting point,length,outer diameter and position of each accessory renal artery,as well as the number,length and outer diameter of renal artery,position relation and the distance between the midpoints together with the angle between the two arteries were measured and analyzed respectively.Results:The appearance rate of accessory renal artery was 29.5 %(31/105)in left kidney and 39.0 %(41/105)in right kidney.The average number of left accessory renal artery was(1.16±0.37).All of the left renal arteries and accessory renal arteries originated from the abdominal aorta,except one originated from inferior artery of suprarenal gland.The lengths of left accessory renal artery and renal artery were(43.28±14.40)mm and(43.59±8.89)mm;the outer diameters of them were(4.04±1.77)mm and(7.48±1.92)mm.The distance between the midpoints of left accessory renal artery and renal artery was(23.08±24.25) mm;the angle between them was(15.75±25.77)°.The average number of right accessory renal artery was(1.29±0.60).All of the right renal arteries and accessory renal arteries originated from the abdominal aorta,except one originated from celiac trunk.The lengths of right accessory renal artery and renal artery were(54.74±16.87)mm and(56.66±13.70)mm,the outer diameters of them were(3.99±1.65)mm and(7.30±2.15)mm.The distance between the midpoints of right accessory renal artery and renal artery was(27.11±28.29)mm,the angle between them was(20.02±22.95)°.There were significant differences in length between left and right accessory renal artery,as well as between left and right renal artery.However,there were no significant differences in other indexes.There were no significant differences in the position and relationship of accessory renal artery and renal artery between the two sides.Conclusions:Detailed and accurate data obtained from this study may be of great value for urological surgery as well as diagnosis and treatment of internal medicine-related diseases.