FIBRODYSPLASIA OSSIFICANS PROGRESSIVA IN CHILDREN

The clinical features of two children with myositis ossificans progres siva are described. Skeletal malformations can be observed in many sit es: hand, femur, tibia and spine. Phalangeal abnormalities (shortened hallux, hallux valgus) are essential to the diagnosis. We recommend sy stematic roentgenographic examination to search for other skeletal mal formations for congenital hallux valgus in young children because it c an be the first sign of myositis ossificans progressiva. Progression o f disability does not seem to be influenced by any form of medical tre atment. Surgical removal of ectopic bone is thought to be followed ine vitably by rapid recalcification at the original site.