Congenital pseudarthrosis of the tibia and neurofibromatosis.

On the basis of 21 cases of congenital pseudarthrosis of the tibia, which were radiologically typed and later personally examined, it was found that all cases of the dysplastic type also showed evidence of neurofibromatosis. No evidence of neurofibromatosis was found among the cystic and the clubfoot type of pseudarthroses.