title: Piezosurgery for the repair of middle cranial fossa meningoencephaloceles.
abstract: OBJECTIVE
  To describe the use of a piezosurgery medical device to perform a craniotomy and produce a split calvarial graft for the repair of middle cranial fossa meningoencephaloceles.
  
  
  METHODS
  Retrospective case review.
  
  
  METHODS
  Tertiary referral hospital.
  
  
  METHODS
  Ten consecutive patients undergoing middle cranial fossa approach for the repair of meningoencephaloceles.
  
  
  METHODS
  Therapeutic.
  
  
  METHODS
  Intraoperative and postoperative complications, success rate as defined by the ability to fashion a split calvarial graft that achieves complete closure of the tegmen defect. As a secondary outcome measure, evidence of integration of the split calvarial bone graft with the adjacent skull base was assessed.
  
  
  RESULTS
  There were no intraoperative or postoperative complications. An appropriately sized calvarial bone graft was produced, and complete closure of the tegmen defect was achieved in all 10 cases. Computed tomography demonstrated evidence of integration of the bone graft in eight cases between 4 and 9 months after surgery.
  
  
  CONCLUSIONS
  The piezosurgery medical device provides a safe and effective means by which the middle fossa craniotomy and split calvarial bone graft can be produced to repair defects of the middle fossa tegmen, with integration of the bone graft in the majority of cases.
authors.affiliation: *Department of Otolaryngology, Head and Neck Surgery, Fremantle Hospital & Healthcare Service; and †Skull base Division, Otolaryngology, Head and Neck Surgery, School of Surgery, Fremantle Hospital Campus, University of Western Australia, Fremantle, Western Australia, Australia.
authors.forename: Aanand N
authors.initials: AN
authors.lastname: Acharya
authors.forename: Gunesh P
authors.initials: GP
authors.lastname: Rajan
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D035301:Cranial Fossa, Middle / Q000601:surgery*; D003399:Craniotomy / Q000379:methods*; D004677:Encephalocele / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008588:Meningocele / Q000601:surgery*; D008875:Middle Aged; D059745:Piezosurgery; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult