Jensen E L, de Carvalho A
Acta Radiol. 1987 Jan-Feb;28(1):85-6.
Radiologic examination of the feet was performed in 72 normal persons with no history or physical signs of disease of the feet. In about 10 per cent, bilateral flat configuration of the second metatarsal head accompanied by a joint space wider than in the neighbouring joints was found, and is therefore a normal anatomic variant that must not be confused with Freiberg's disease or its final stages.
对72名足部无疾病史及体征的正常人进行了足部放射学检查。在约10%的人中，发现第二跖骨头呈双侧扁平形态，且关节间隙比相邻关节宽，因此这是一种正常的解剖变异，绝不能与弗赖伯格病或其终末期相混淆。
