Prevalence, morphological variation and ossification of sesamoid bonesof the forefoot: a retrospective radiographic study of 8,716 Chinesesubjects  

作　　者：Tao Sun Lingxiang Wang Haitao Zhao Wenjuan Wu Wenhai Hu 

机构地区：[1]Department of Orthopedic Surgery,Third Hospital of Hebei Medical University,Shijiazhuang 050051,Hebei Province,China [2]Department of Gynecology,Forth Hospital of Hebei Medical University,Shijiazhuang 050011,Hebei Province,China [3]Department of Radiology,Third Hospital of Hebei Medical University,Shijiazhuang 050051,Hebei Province,China

出　　处：《Journal of Clinical & Translational Research》2016年第3期13-18,共6页临床和转化研究

摘　　要：Background and Aim:Previous studies provided evidence of a genetic basis for the occurrence of sesamoids bone in the foot among different ethnic populations.However,information for the Chinese population has not been previously reported.Therefore,the aim of our study was to determine the distribution,morphological variation and ossification timeline of sesamoid bones of the forefoot in a large sample of the Chinese population.Methods:Antero-posterior(AP)and oblique radiographs of 4,417 left and 4,299 right feet obtained from 8,716 patients in the Hebei province of Northern China,and retrospectively examined for the presence of sesamoid bones,identified as a small oval bone plantar to each metatarsophalangeal(MTP)joint and the first interphalangeal(IP)joint.Results and Conclusions:The prevalence rate of a sesamoid bone associated with the first to fifth MTP joints and the first IP joint was 99.96%,3.08%,0.39%,0.69%,8.94%,and 59.22%,respectively.Moreover,a morphological variation in hallucal sesamoids was identified in 12.09%of feet,with variations classified into three distinct types according to bone size and the number of ossification centers.Ossification begins in the hallucal MTP and IP joints at approximately 8 years of age,with the final ossification center being evidence for the sesamoid bone of the fourth MTP joint at 28 years of age.Relevance for patients:Our study provides important anatomical data regarding the prevalence of sesamoid bones in the forefoot of a large population of Chinese adult and pediatric patients for use in clinical practice and research in forensic science and anthropology.

关 键 词：SESAMOID bones METATARSOPHALANGEAL joint PREVALENCE OSSIFICATION radiological 

分 类 号：F42[经济管理—产业经济]