Disorders of the first metatarsal sesamoids

143 cases with metatarsalgia presented with pain, tenderness and sometimes swelling under the head of the first metatarsal bone were examined clinically and radiologically, two cases of which were examined histopathologically and 75 asymptomatic feet were examined as a control. Their assessement revealed that : 16 cases [11.1%] with dysplasia, 32 cases [22.5%] with malformation, 54 cases [37.8%] with malposition, 13 cases [9%] with osteochondritis, 19 cases [13.3%] with sesamoidometatarsal arthritis, 6 cases [4.2%] with osteomyelitis, and 3 cases [2.1%] with fracture. The suggested radiological assessements were noted and discussed