Affordable Access

deepdyve-link
Publisher Website

Pyramidal and posterior osseous release for maxillary superior/posterior mobilization using an ultrasonic bone-cutting device after Le Fort I osteotomy.

Authors
  • Yamauchi, Kensuke1
  • Suzuki, Hikari2
  • Yamaguchi, Yoshihiro2
  • Saito, Shizu2
  • Nogami, Shinnosuke2
  • Takahashi, Tetsu2
  • 1 Department of Oral and Maxillofacial Surgery, Tohoku University, Postgraduate School of Dentistry, Japan. Electronic address: [email protected] , (Japan)
  • 2 Department of Oral and Maxillofacial Surgery, Tohoku University, Postgraduate School of Dentistry, Japan. , (Japan)
Type
Published Article
Journal
Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery
Publication Date
Feb 01, 2020
Volume
48
Issue
2
Pages
170–175
Identifiers
DOI: 10.1016/j.jcms.2020.01.002
PMID: 32005513
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The purpose of this study was to evaluate the efficiency of pyramidal and posterior osseous release (PPOR) for maxillary impaction using an ultrasonic bone-cutting device after Le Fort I (LFI) osteotomy. In total, 31 Japanese adults with jaw deformities, diagnosed as having maxillary excess with mandibular prognathism or deficiency, underwent LFI osteotomy and bilateral sagittal split osteotomy. The patients were divided into two groups: a trimming group (15 patients, four men and 11 women; mean age 24.8 years) and a PPOR group (16 patients, seven men and nine women; mean age 22.8 years). In the trimming group, osseous interference around the descending palatine artery (DPA) was removed using forceps, rounding bur, and reciprocating rasp. The PPOR technique was used to remove osseous fragments created by V-shaped osteotomy around the DPA following vertical osteotomy behind the DPA using an ultrasonic bone-cutting device (Variosurg 3; NSK, Tochigi, Japan). The operative times for maxillary osteotomy, total operative times (including bilateral sagittal split osteotomy), and total blood loss were assessed. The mean planned amounts of maxillary impaction were 4.37 ± 1.27 mm in the trimming group and 4.38 ± 1.36 mm in the PPOR group (p = 0.98). The mean maxillary operative time for the PPOR group was significantly shorter, by 25.5% (p < 0.001). Total operative time for the PPOR group was also significantly shorter, by 24.3% (p < 0.001). Mean blood loss was significantly lower in the PPOR group than in the trimming group (p = 0.003). The PPOR technique for maxillary impaction after LFI osteotomy shortened the operative time and enabled secure reduction of the maxilla in patients who required the treatment of maxillary impaction with preservation of the DPA bundle. Copyright © 2020 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.

Report this publication

Statistics

Seen <100 times