The use of Hydroxyapatite Cement and a Pericranial/Deep Temporal Fascia Graft for Cranioplastic Reconstruction of Translabyrinthine Craniectomy Defects

Abstract

Most translabyrinthine temporal bone defects are reconstructed with free abdominal fat grafts, with or without the use of hydroxyapatite cement. However, these procedures are associated with considerable morbidity at the graft donor site, with a 6 to 15% incidence of cerebrospinal fluid (CSF) leaks, and with postoperative headaches. We have developed a new technique for reconstructive cranioplasty that involves the use of hydroxyapatite cement and a pericranial/deep temporal fascia graft. This technique obviates the need for an abdominal fat graft and therefore circumvents the morbidity associated with it; it may also significantly reduce the incidence of CSF leaks and postoperative headaches. We describe the results of our use of this technique in a series of 10 patients. Based on our early findings, we believe that this technique holds great promise for reconstructive cranioplasty following translabyrinthine craniectomy.