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Title: | Use of Bone Grafts or Modified Bilateral Sagittal Split Osteotomy Technique in Large Mandibular Advancements Reduces the Risk of Persisting Mandibular Inferior Border Defects | Authors: | Cifuentes, Julio Yanine, Nicolas Jerez, Daniel Barrera, Ariel Agbaje, Jimoh Olubanwo POLITIS, Constantinus |
Issue Date: | 2018 | Publisher: | W B SAUNDERS CO-ELSEVIER INC | Source: | JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY, 76(1) (Art N° 189.e1) | Abstract: | Purpose: Healing of the inferior border of the mandible can be compromised in large advancements, leaving an unesthetic defect at the inferior border. The objective of this study was to compare different bilateral sagittal split osteotomy (BSSO) techniques to prevent the incidence of lower border mandibular defects. & para;& para;Materials and Methods: The authors undertook a retrospective multicenter cohort study comparing 3 BSSO techniques for advancements greater than 5 mm: traditional non-grafted BSSO (group A), traditional grafted BSSO (group B), and modified BSSO (group C). The space created by the mandibular advancement was measured. The presence or absence of a defect was determined 1 year after surgery by clinical and radiographic assessment. The bone defect outcome was associated with potential risk predictors (age, gender, side of SSO, and magnitude of mandibular advancement) by logistic regression analysis.& para;& para;Results: A total of 1,002 operative sites in 501 patients were included in the study. Age (mean, 26.8 yr; standard deviation, 11 yr), gender (310 female, 191 male), and mandibular advancement (right, 9.3 mm; left, 10 mm) were similar among groups (P > .05). The proportions of post-surgical lower border mandibular defects were 54.5% in group A, 1.3% in group B, and 10.6% in group C. The traditional grafted and modified BSSO techniques were significantly more effective in preventing the incidence of mandibular lower border defects compared with the traditional non-grafted BSSO technique (P < .05).& para;& para;Conclusion: Surgeons are advised that the traditional non-grafted BSSO technique produces a large proportion of mandibular lower border defects. Use of bone grafts or the modified BSSO technique in mandibular advancements greater than 10 mm markedly decreases the risk of persisting mandibular inferior border defects. (C) 2017 American Association of Oral and Maxillofacial Surgeons | Notes: | [Cifuentes, Julio] Clin Alemana Santiago, Oral & Maxillofacial Surg Unit, Vitacura 5951, Santiago, Chile. [Cifuentes, Julio] Univ Desarrollo, Clin Alemana, Fac Med, Oral & Maxillofacial Surg Dept, Santiago, Chile. [Yanine, Nicolas; Barrera, Ariel] Clin Alemana Santiago, Santiago, Chile. [Yanine, Nicolas; Barrera, Ariel] Hosp San Jose, Santiago, Chile. [Yanine, Nicolas] Hosp San Borja A, Santiago, Chile. [Yanine, Nicolas] Univ Chile, Fac Dent, Oral & Maxillofacial Dept, Santiago, Chile. [Jerez, Daniel] Univ Mayor, Sch Dent, Oral Surg, Santiago, Chile. [Agbaje, Jimoh Olubanwo] Katholieke Univ Leuven, Fac Med, Dept Imaging & Pathol, OMFS IMPATH Res Grp, Leuven, Belgium. [Politis, Constantinus] Katholieke Univ Leuven, Fac Med, Dept Oral & Maxillofacial Surg, OMFS IMPATH Res Grp, Leuven, Belgium. [Politis, Constantinus] Katholieke Univ Leuven, Fac Med, Dept Imaging & Pathol, Leuven, Belgium. [Politis, Constantinus] Hasselt Univ, Fac Med, Diepenbeek, Belgium. | Document URI: | http://hdl.handle.net/1942/26568 | ISSN: | 0278-2391 | e-ISSN: | 1531-5053 | DOI: | 10.1016/j.joms.2017.09.002 | ISI #: | 000418651800031 | Rights: | (C) 2017 American Association of Oral and Maxillofacial Surgeons | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2019 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
acceptedmanuscriptJulioCifuentes.pdf | Peer-reviewed author version | 1.64 MB | Adobe PDF | View/Open |
Politis.pdf Restricted Access | Published version | 673.86 kB | Adobe PDF | View/Open Request a copy |
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