1.作者共观察成年男性足部X线象160例。对足部骨骼之畸形变异进行了研究。 2.足部额外骨并不少见,占35％,常见者有副舟骨、副腓骨、跖间骨及三角骨等。 3.跖骨头下方之籽骨数目可以为0—8个。 4.作者测量了第一、二跖骨间角、(足母)趾跖趾间角、Bohler氏角、舟骨粗隆突出距离,第一、二跖骨头差及跖骨干皮质厚度,并指出其相互关系及实用意义。 1. A total of 160 adult male X-ray images were observed. The deformity variation of foot bones was studied. Foot extra bones is not uncommon, accounting for 35% of the common sub navicular, fibula, metatarsal bone and triangular bone. 3. The number of sesamoids below the head of the metatarsal can be 0-8. The author measured the first and second metatarsal angle, (foot) toes metatarsophalangeal angle, Bohler’s angle, scaphoid protruding distance, the first and second metatarsal head and metatarsal dry cortex thickness, and pointed out that the Interrelationship and Practical Significance.