I. Introduction
Cranioplasty is a procedure to treat cranial defects due to trauma, injury, or neurosurgical procedures for brain tumors, aneurysms, or epilepsy [1]. Conventional cranioplasty is a two-stage process that repairs skull deformities in a delayed operation [2]. Such process requires the skull to be partially removed from the patient, who then has to wait for the design and fabrication of the replacing implant for three to four weeks. In contrast, single-stage cranioplasty aims to restore aesthetic appearance immediately following craniectomy within one single operation, therefore, decreasing operative times and speeding up the patient’s recovery [3].