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A new cranial suture appearing in the site of craniectomy for synostosis.

Abstract The formation of a radiologically normal suture following craniectomy for congenital craniosynostosis is described. In the cases discussed, craniectomy consisted of removal of a strip of skull bone 1 cm wide to separate the congenitally fused membranous bones of the skull. Polyethylene film is wrapped around the bone edges to retard sealing of the surgical defect by new bone growth. In 1966, a suture radiographically identical to a normal suture was seen on a follow-up study. Since that time 26 such cases have been described. A discussion of the mechanisms of suture formation is presented.