The medial subcoronoid process region as a novel source of bone grafts in orthognathic surgery and genioplasty
CF Yao, R Denadai, DCG Pascasio… - Journal of …, 2020 - journals.lww.com
CF Yao, R Denadai, DCG Pascasio, YC Chen, YR Chen
Journal of Craniofacial Surgery, 2020•journals.lww.comBackground: Since 2012, the authors have adopted the medial subcoronoid process bone
interpositional grafting in OGS and genioplasty procedures. The purpose of this study was to
present the technical details and clinical outcomes of this alternative bone interpositional
grafting for LeFort I and chin osteotomies. Methods: Consecutive patients (n= 50) who
underwent single-splint bimaxillary OGS with or without genioplasty and received medial
subcoronoid bone interpositional grafting were included. Standardized facial and intraoral …
interpositional grafting in OGS and genioplasty procedures. The purpose of this study was to
present the technical details and clinical outcomes of this alternative bone interpositional
grafting for LeFort I and chin osteotomies. Methods: Consecutive patients (n= 50) who
underwent single-splint bimaxillary OGS with or without genioplasty and received medial
subcoronoid bone interpositional grafting were included. Standardized facial and intraoral …
Abstract
Background:
Since 2012, the authors have adopted the medial subcoronoid process bone interpositional grafting in OGS and genioplasty procedures. The purpose of this study was to present the technical details and clinical outcomes of this alternative bone interpositional grafting for LeFort I and chin osteotomies.
Methods:
Consecutive patients (n= 50) who underwent single-splint bimaxillary OGS with or without genioplasty and received medial subcoronoid bone interpositional grafting were included. Standardized facial and intraoral photographs at early and late postoperative periods (12.2±3.3 and 44.8±8.4 months postsurgery, respectively) were blindly rated to assess facial symmetry, chin, and occlusion status based on qualitative rating scales. Complication and reoperation rates were also reviewed.
Results:
The medial subcoronoid bone interpositional grafts were adopted to stabilize different LeFort I maxillary movement types or lengthening/advancing genioplasty (36 and 14 patients, respectively). Overall, the early facial symmetry, chin, and occlusion status were maintained at late evolutions. None of the patients had donor-site or bone graft-related complications (ie, bad split, undesired mandible fracture, infection, fibrous union, nonunion, and/or permanent neurosensory deficit) or revisionary surgery during follow-up.
Conclusion:
The medial subcoronoid process bone grafting was a feasible alternative for bone interpositional defects of LeFort I and chin osteotomies with no significant morbidity and avoiding secondary donor sites.
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