豆状体(Fabella)是位于腓肠肌肌腱内的籽骨,据Hollinshead报道可分为骨性、软骨性和纤维性三种,其中骨性的能在X线下显示,称之为豆状体或小豆骨。国内未见详细文献报导。本文以膝关节侧位片共调查196侧正常人膝关节,其中右侧106例,左侧90侧,观察豆状体位置、形态、数目及其周围关系,并测 Fabella, a sesamoid located in the tendon of the gastrocnemius, can be divided into osteogenic, cartilaginous and fibrous according to the report of Hollinshead. Osteoid can be displayed under the X ray, Small beans. No detailed domestic literature reported. In this paper, a total of 196 normal knee joints were investigated in knee joint, including 106 cases on the right side and 90 sides on the left side. The position, shape, number and their relationship of lenticels were observed and measured