Abstract
Background The use of abdominal free fat is a traditional surgical method for the repair and reconstruction of the anterior skull base. Our objective is to assess the outcomes associated with the autologous fat graft to endoscopically repair anterior skull base defects at a single tertiary care center. Methods All patients, who underwent endoscopic skull base repair utilizing abdominal free fat from September 2009 to June 2016, were included for retrospective chart review. Evaluated outcome measurements included (1) the successful closure of preoperative and intraoperative cerebrospinal fluid (CSF) leaks and (2) complications at both donor and recipient graft sites during the postoperative periods. Four representative clinical cases have additionally been selected to highlight the common indications for which the fat graft may be effective in skull base reconstruction. Results Of the 27 patients who were identified for inclusion in this review, 25 (92.6%) demonstrated successful repair of preoperative or intraoperative CSF leaks following primary skull base repair. Two patients developed recurrent CSF leaks occurring about 1 week after their primary closures, and a secondary closure rate of 96.3% was achieved with use of fat grafts. Other complications included seroma and hematoma formation at the abdominal donor sites, each occurring in 1 patient. Conclusions The use of autologous fat remains a viable option for grafting material during endoscopic skull base reconstruction. Despite the wide variety of closure techniques in skull base surgery, autologous fat provides safe and easily accessible material to repair CSF leaks.
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