Title
Trans-sinusal maxillary distraction for correction of midfacial hypoplasia : long-term clinical results Trans-sinusal maxillary distraction for correction of midfacial hypoplasia : long-term clinical results
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
KÝbenhavn ,
Subject
Human medicine
Source (journal)
International journal of oral and maxillofacial surgery. - KÝbenhavn
Volume/pages
35(2006) :10 , p. 885-896
ISSN
0901-5027
ISI
000241756400001
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
Maxillary distraction osteogenesis is indicated in severe angle class III malocclusions, and severe maxillary hypoplasia among some cleft patients and other craniofacial deformities. Twenty patients, aged 848 years (mean 17.8 ± 10.5 SD) with maxillary and midfacial hypoplasia were treated. The follow-up period was 1365 months (mean 35 ± 16.3 SD). A trans-sinusal maxillary distractor was placed intraorally at each side of the maxilla. The distraction vector was predicted using specialist software, and was transferred to the patients using stereolithographic models and individual templates. A (high) Le Fort I type osteotomy was performed. The amount of activation varied from 8 to 17.5 mm (mean 13.1 ± 2.9 SD). Soft and hard tissue formation resulted in complete healing across the distraction gaps. The distractors are almost completely submerged, and can be left in place as long as necessary to avoid relapse. Wit's appraisal was used to measure the stability of the long-term distraction results. Results up to 5 years after distraction showed considerable maxillary advancement with long-term stability. Ongoing growth of the facial skeleton must be considered when distraction osteogenesis is chosen in growing patients.
E-info
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