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J Neurosurg. 1979 Nov;51(5):691-6.

Subtotal neonatal calvariectomy. A radiographic and histological evaluation of calvarial and sutural redevelopment in rabbits.


A subtotal calvariectomy was performed on rabbits between 10 and14 days of age. The animals were allowed to grow and were then sacrificed serially so that the sutural and skeletal redevelopment could be analyzed through a combination of gross, radiographic, and histological techniques. The results indicate that calvarial regeneration is a progressive process with a definite pattern and rate of development. During the regenerative process, bone was deposited both at the surgical margin and as islands within the srugical defect. The eventual approximation of these areas of ossification produced multiple fibrous articulations. The majority of these articulations were obliterated by bone union, except for the midsagittal, coronal, and metopic sutures, which were re-established in their appropriate antomical positions. The maintenance of dural integrity during the surgical phase and the regeneration and establishment of pericranial continuity during the postoperative period were believed to be important in the re-establishment of normal sutural and skeletal architecture.

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