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Journal of Stomatology Oral and Maxillofacial Surgery
Volume 119, n° 1
pages 19-24 (février 2018)
Doi : 10.1016/j.jormas.2017.11.003
Received : 19 June 2017 ;  accepted : 1 November 2017
Original Articles

Study of the mechanical reliability of an S-shaped adjustable osteosynthesis plate for bilateral sagittal split osteotomies. Study on 15 consecutive cases
 

A. Veyssiere a, b, c, , N. Leprovost a, B. Ambroise a, c, R. Prévost a, A. Chatellier a, H. Bénateau a, b, c
a Department of maxillofacial and plastic surgery, Caen university hospital, 14000 Caen, France 
b UNICAEN, EA7451, équipe BioConnecT, avenue de la Côte-de-Nacre, 14000 Caen, France 
c Medicine faculty of Caen, university of Caen-Basse-Normandie, 14032 Caen cedex 5, France 

*Corresponding author at: Department of maxillofacial and plastic surgery, Caen university hospital, 14000 Caen, France.
Abstract
Introduction

The main challenge during the osteosynthesis of a bilateral sagittal split osteotomy (BSSO) is to take into account the correct position of the condyle. Adjustable plates can be used to fine-tune the final occlusion without changing the osteosynthesis. A new type of adjustable plate is presented in this article. The aim is to assess the mechanical reliability of this system during the surgery and during the healing period, thanks to a preliminary prospective on 15 consecutive cases.

Material and methods

The bridge of the plate studied here has an “S”-shape and can be bent in two different planes. Fifteen patients presenting a maxilla-mandibular disharmony have been operated on with this device. Clinical results were evaluated three months postoperatively and the mechanical reliability of the device was studied prospectively from teleradiographies of 15 patients operated on in our department.

Results

This study shows good results, with respect to the mechanical reliability of this S-shaped adjustable plate, three months postoperatively corresponding to the bone-healing period. Radiographic observations did not show any significant displacement at the osteosynthesis site.

Discussion

This preliminary study shows the mechanical reliability of this new S-shaped adjustable plate. Its semi-rigid character may allow for certain condyle position adaptability. No plate fracture was reported for this 15 patient series. These encouraging results have to be confirmed on a larger series.

The full text of this article is available in PDF format.

Keywords : Bilateral sagittal split osteotomy, Osteosynthesis plate




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