Document Detail

Comparing the effect of 3 orthognathic surgical methods on the mandibular range of movement.
MedLine Citation:
PMID:  20485032     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Mandibular setback for the treatment of mandibular prognathism is a common orthogenetic surgical procedure carried out using various intraoral and extraoral methods. Reduced mandibular movement range (MMR) is one of the common complications of this surgery. OBJECTIVES: The aim of this study was to compare the reduction of MMR after 3 surgical procedures including sagittal split osteotomy (SSO), intraoral vertical ramus osteotomy (IVRO), extraoral vertical ramus osteotomy (EVRO). METHODS: In this clinical trial, 150 patients with mandibular prognathism were divided into 3 groups of 50 patients. In the first group, mandibular setback was performed using SSO; in the second group, we used IVRO, and EVRO was the method used in the third group. In each group, before and 3 months after the surgery, maximum interincisal opening and the range of right and left lateral and protrusive movements were measured and compared. RESULTS: Although the mean amount of MMR reduced in all the groups, it was not equal in all the groups. Sagittal split osteotomy and the EVRO resulted in the most and least reduction of MMR, respectively. CONCLUSIONS: Reduced MMR is one of the complications of SSO, IVRO, and EVRO; however, SSO resulted in the most and EVRO in the least effect on limitation of movement after surgery.
Javad Yazdani; Human Ebrahimi; Kurosh Taheri Talesh; Ehsan Khashabi; Sara Pourshahidi; Azadeh Andisheh Tadbir
Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article    
Journal Detail:
Title:  The Journal of craniofacial surgery     Volume:  21     ISSN:  1536-3732     ISO Abbreviation:  J Craniofac Surg     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-05-20     Completed Date:  2010-09-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010410     Medline TA:  J Craniofac Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  703-5     Citation Subset:  D    
Department of Oral and Maxillo-Facial Surgery, Tabriz University of Medical Sciences, Tabriz, Iran.
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MeSH Terms
Mandible / surgery*
Middle Aged
Oral Surgical Procedures / methods*
Osteotomy / methods*
Postoperative Complications
Prognathism / surgery*
Range of Motion, Articular / physiology*
Temporomandibular Joint / physiology*
Treatment Outcome

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