Resistance of the sheep skull after a monocortical cranial graft harvest.

Introduction: Cranial bone grafts are commonly used for preimplant or facial reconstructive surgery. However, removing bone may weaken the parietal bone and lead to a loss of strength. This loss has never been quantified.

Tessier number 4 bilateral orbito-facial cleft: a 26-year follow-up.

Orbito-facial number 4 clefts are the rarest craniofacial clefts and only a few cases have been reported. We report a case of a complete bilateral Tessier number 4 cleft, and our approach to surgical correction. We analyse the patient's treatment plan over a 26-year follow-up period.