Features of intra-hamate vascularity and its possible relationship with avascular risk of hamate fracture

作     者：Zi-Run Xiao Wei-Guang Zhang Ge Xiong 

作者机构：Department of Hand SurgeryBeijing Jishuitan HospitalBeijing 100035China Department of Anatomy and HistologyPeking University Health Science CenterBeijing 100191China 

出 版 物：《Chinese Medical Journal》 (中华医学杂志（英文版）)

年 卷 期：2019年第132卷第21期

页      面：2572-2580页

核心收录：

学科分类：1002[医学-临床医学] 100210[医学-外科学(含：普外、骨外、泌尿外、胸心外、神外、整形、烧伤、野战外)] 10[医学] 

基　　金：supported by the grant from the Peking University Medicine Information Foundation 

主　　题：Micro-computed tomography angiography Intra-hamate arteries Hamate fractures Avascular risk 

摘      要：Background:The angiography with micro-computed tomography(micro-CT)has been proved its great advantages on investigating the intra-osseous vascularity of carpal *** few researches have focused on the intra-hamate *** study aimed to illustrate the intra-osseous arteries of the hamate and the relationship between the intra-hamate vascularity and the avascular risk of different types of hamate ***:Six normal cadaveric hamates were investigated with red lead(Pb3O4)micro-CT *** intra-osseous arteries of specimens were clearly enhanced and the three-dimensional model was *** order to study the features of the arterial entrances and intra-hamate vascularity,the diameters,quantities,locations of enhanced arteries,and the locations of transversal/proximal pole fracture lines on the body of the hamate were statistically ***,in order to analyze the relationship between intra-hamate vascularities and different hamate fractures,127 cases of hamate fractures who presented in our hospital from March 2003 to June 2017 were retrospectively ***:A total of 94 cases were followed up(range:4–37 months;mean:12.4 months)*** overall union rate of hamate fractures was as high as 92.6%(87 of 94 cases),while non-union of fracture on hamate hook was more common(P=0.031).The arterial entrances were located around the dorsal,volar,radial,ulnar non-articular surfaces of the hamate body and the hook of the ***,there were one to two trunk arteries on the volar non-articular surface and one to three trunk arteries on the dorsal non-articular *** formed one or two arterial arches,from which some branches were emitted and supplied the proximal *** intra-osseous vascularities of the hamate body were generally located in the radial *** blood supply of the hook was mainly from the volar non-articular surface in most *** fractures could be classified into four types: