Document Detail

The influence of reduction mandibuloplasty history on the incidence of inferior alveolar nerve injury during sagittal split osteotomy.
MedLine Citation:
PMID:  23358018     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The authors studied whether the incidence of inferior alveolar nerve injury in patients undergoing sagittal split ramus osteotomy differs in patients with a history of previous mandibular contouring surgery.
METHODS: A retrospective chart review was completed on all patients who underwent orthognathic surgery, including bilateral sagittal split osteotomy and Le Fort I osteotomy, between 2009 and 2010. Patients were divided into two groups according to whether or not they had a history of mandible contouring. Patients who sustained inferior alveolar nerve injuries during orthognathic surgery were identified through an existing record of nerve-repair cases. The incidence of inferior alveolar nerve injury between groups was analyzed using the Fisher's exact test. Significance was defined as a value of p < 0.05.
RESULTS: There were 168 patients (142 women and 26 men), with an average age of 25.3 years (range, 18 to 35 years). The inferior alveolar nerve injury rate in patients with a history of mandible contouring was 11.5 percent (n = 3), and that for primary sagittal split osteotomy patients was 1.6 percent (n = 5). The incidence of inferior alveolar nerve injury was significantly higher in the patients with a history of mandible contouring (p < 0.001).
CONCLUSIONS: These findings suggest that patients with a history of mandibular contouring surgery had a significantly greater risk of inferior alveolar nerve injury. Surgeons should be aware of the relative change of the inferior alveolar nerve canal in patients who have undergone mandible contouring procedures and perform sagittal split ramus osteotomy with attention.
Bong-Kyoon Choi; Lun-Jou Lo; Kap-Sung Oh; Eun-Jung Yang
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Plastic and reconstructive surgery     Volume:  131     ISSN:  1529-4242     ISO Abbreviation:  Plast. Reconstr. Surg.     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-29     Completed Date:  2013-04-01     Revised Date:  2014-10-13    
Medline Journal Info:
Nlm Unique ID:  1306050     Medline TA:  Plast Reconstr Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  231e-237e     Citation Subset:  AIM; IM    
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MeSH Terms
Intraoperative Complications / epidemiology*,  etiology*
Mandible / surgery*
Osteotomy / methods*
Retrospective Studies
Trigeminal Nerve Injuries / epidemiology*,  etiology*
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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