Necrosis of the First Metatarsal Sesamoid Bone and the Supranumerary Bone

Abstract

Supranumerary bones and sesamoid bones can be found in the feet. We present two cases of the bone necroses of the supranumerary bone and sesamoid bone.
Case 1 was a 56 years old female. She suffered pain under the first metatarsal head of the right great toe two months before her initial appearance. The initial examination found a localized tenderness over the medial sesamoid, and roentgenographic examination slowed irregularity and fragmentation of the medial sesamoid. Removal of the sesamoid bone was performed and necrosis of the bone was diagnosed by the pathological finding.
Case 2 was a 49 years old male. He suffered from pain in his right foot 10 years ago. Though an arch support had been used for the treatment, however the pain became more severe 2 years back. Initial examination slowed a localized swelling over the right accessory navicular. Roentgenographic examination revealed irregularity and fragmentation of the accessory navicular. Removal of the accessory navicular was performed and bone necrosis was diagnosed by the pathological finding.