| Long-term stability of LeFort III distraction osteogenesis with a rigid external distraction device in a patient with Crouzon syndrome. | |
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MedLine Citation:
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PMID: 21967944 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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A 6-year-old boy, diagnosed with Crouzon syndrome, had moderate exorbitism, a concave profile, an anterior crossbite of -4.0 mm, and a skeletal Class III jaw-base relationship caused by midfacial hypoplasia. At age 8 years 9 months, a LeFort III osteotomy was performed, and distraction osteogenesis was immediately started with the rigid external distractor system. The midface was advanced approximately 10.0 mm for 6 days, including overcorrection. After the distraction, a reverse headgear was used for 6 years to prevent relapse and to accelerate expected growth. At age 16 years 5 months, after extraction of the maxillary first premolars and mandibular third molars, 0.022-in preadjusted edgewise brackets were placed to treat the edge-to-edge incisor relationship and minor crowding. After 13 months of treatment, the facial profile was significantly improved, and an acceptable occlusion was achieved. During the 9-year observation period after the distraction, acceptable facial growth occurred, and no relapse of the maxillary advancement was observed. However, syndrome-specific growth and methodologically induced relapse should be considered when planning a LeFort III distraction in children for the treatment of Crouzon syndrome. |
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Authors:
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Shingo Kuroda; Keiichiro Watanabe; Kyoko Ishimoto; Hideki Nakanishi; Keiji Moriyama; Eiji Tanaka |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics Volume: 140 ISSN: 1097-6752 ISO Abbreviation: Am J Orthod Dentofacial Orthop Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-04 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8610224 Medline TA: Am J Orthod Dentofacial Orthop Country: United States |
Other Details:
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Languages: eng Pagination: 550-61 Citation Subset: D; IM |
Copyright Information:
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Copyright © 2011 American Association of Orthodontists. Published by Mosby, Inc. All rights reserved. |
Affiliation:
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Associate professor, Department of Orthodontics and Dentofacial Orthopedics, University of Tokushima Graduate School of Oral Sciences, Tokushima, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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