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DOI: 10.1055/s-0028-1096204
© Thieme Medical Publishers
Vascularized Mastoid Bone Flap Cranioplasty after Translabyrinthine Vestibular Schwannoma Surgery
Publication History
Publication Date:
29 October 2008 (online)
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ABSTRACT
Objective: We describe a novel technique of cranioplasty using a vascularized mastoid bone flap in patients after translabyrinthine excision of vestibular schwannomas (VS). Postoperative outcomes in terms of pinna and postauricular deformity are evaluated. Study Design: Retrospective study. Setting: Tertiary referral center. Results: Seventeen patients underwent cranioplasty with bone flap after translabyrinthine VS excision. At minimum follow-up of 12 months, none had a cerebrospinal fluid (CSF) leak. The measured pinna projections between the operated and non-operated sides had a mean difference of 0.80 mm (±1.70), which is not statistically significant (p > 0.05). The mean depth of the postauricular depressions was 1.38 mm (±0.93). Over the same period, 10 patients underwent translabyrinthine VS surgery without cranioplasty. In this group, there was a significant difference of 4.71 mm (±1.53) in mean pinna underprojections on the operated sides compared with the non-operated sides. Compared with patients who have undergone cranioplasty, the retroauricular depressions were significantly deeper (p < 0.05) with a mean depth of 2.92 mm (±1.21) . Conclusions: Vascularized mastoid cortical bone flap cranioplasty is a simple and effective technique to ameliorate the pinna and retroauricular deformities after translabyrinthine VS excision without increased surgical cost or the use of alloplastic materials.
KEYWORDS
Vascularized bone flap - cranioplasty - vestibular schwannoma - mastoid reconstruction
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Joseph M ChenM.D.
Department of Otolaryngology–Head and Neck Surgery, Sunnybrook Health Sciences Centre, University of Toronto
2075 Bayview Avenue, M1-102, Toronto, ON M4N 3M5, Canada
Email: joseph.chen@sunnybrook.ca