1. Fracture of the tibial (inner) sesamoid of the great toe, although not common, has been reported often enough since its recognition to be classed as a clinical entity.
2. Fracture of the fibular (outer) sesamoid is rare and has been reported only a very few times.
3. Congenital anomalies of the tibial (inner) sesamoid occur in about four per cent. of cases.
4. No cases of congenital anomalies of the fibular (outer) sesamoid have been reported.
5. This case of fibular (outer) sesamoid is of interest as being very unusual.
6. The diagnosis of fractured sesamoid in this case is more certain because congenital anomalies of the fibular (outer) sesamoid have not been reported; and is proved by the x-ray taken.
(C) 1929 All Rights Reserved.The Journal of Bone and Joint Surgery, Inc.