Journal of Bone and Joint Surgery, 1933;15:766-771.
© 1933 by The Journal of Bone and Joint Surgery, Inc
OS SUBTIBIALE
Inconstant Bone Over the Tip of the Medial Malleolus
PAUL W. LAPIDUS M.D.1
1 Assistant Adjunct, Hospital for Joint Diseases; Assistant Surgeon, Hospital for Ruptured and Crippled
Two cases of bilateral extremely rare inconstant bone, os subtibiale, are reported,one in an adult, the other in a child.
An accessory center of ossification over the tip of the medial malleolus is occasionally observed in children, appearing around six and fusing at about thirteen years of age. This accessory center and the os subtibiale seem to be two different entities which, however, may have some relation to each other.