See: secondary
References in periodicals archive ?
We discuss some of the more commonly symptomatic bones, namely the os acromiale, os styloideum, metacarpal and hallux sesamoids, patella, os trigonum, os calcaneus secundarius, accessory navicular, os peroneum, and os intermetatarseum.
The os calcaneus secundarius is an accessory ossicle of the anterior facet of the calcaneus, which may be mistaken for a fracture of the anterior process.
Calcaneus secundarius presenting as calcaneonavicular coalition: A case report.