New Bone Growth at the Trepanation Site on the Side of the Head (image) University of California - Santa Barbara Share Print E-Mail Caption New bone growth at the trepanation site on the side of the head indicates a successful procedure. However, the holes drilled at the top of the skull were as the individual was dying or shortly after he died. Credit Danielle Kurin Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.