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Article: The stability of segmentalized Le Fort I osteotomies with miniplate fixation in patients with maxillary hypoplasia

TitleThe stability of segmentalized Le Fort I osteotomies with miniplate fixation in patients with maxillary hypoplasia
Authors
Issue Date1995
PublisherWB Saunders Co. The Journal's web site is located at http://www.elsevier.com/locate/joms
Citation
Journal Of Oral And Maxillofacial Surgery, 1995, v. 53 n. 12, p. 1407-1413 How to Cite?
AbstractPurpose: This study evaluates the postsurgical stability of segmentalized Le Fort I osteotomies with miniplate fixation in patients with maxillary hypoplasia. Materials and Methods: Eighteen adult patients who had undergone segmentalized Le Fort I osteotomy for anterior and inferior repositioning of their hypoplastic maxilla were studied radiographically. The positional change of five maxillary landmarks (PNS, ANS, A, U1, and UM) were measured on serial cephalometric radiographs according to a reference frame constructed by using the SN line for superimposition, sella as the origin of the coordinates, and a line parallel to Frankfort horizontal plane as the x- axis. The positional changes of all variables were measured twice, and the means were calculated for analysis. The paired t-test was used for statistical analysis. Results: Statistically significant mean vertical change (P < .01) was found in the anterior maxilla, with U1 having moved up by 27.8% (1.5 mm) of its initial downward surgical movement by 1 year postoperatively. U1 and UM had moved forward 2.0 mm and 1.5 mm, respectively (P < .01) by 1 year postoperatively, but the bony landmarks had no statistically significant change in their horizontal positions. Conclusion: Although statistically significant postsurgical changes were found at 1 year postoperatively, overcorrection is not recommended because of the large individual variation observed and the relatively small magnitude of the relapse.
Persistent Identifierhttp://hdl.handle.net/10722/66068
ISSN
2015 Impact Factor: 1.631
2015 SCImago Journal Rankings: 0.824
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChow, Jen_HK
dc.contributor.authorHagg, Uen_HK
dc.contributor.authorTideman, Hen_HK
dc.contributor.authorBloomquist, DSen_HK
dc.date.accessioned2010-09-06T05:43:19Z-
dc.date.available2010-09-06T05:43:19Z-
dc.date.issued1995en_HK
dc.identifier.citationJournal Of Oral And Maxillofacial Surgery, 1995, v. 53 n. 12, p. 1407-1413en_HK
dc.identifier.issn0278-2391en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66068-
dc.description.abstractPurpose: This study evaluates the postsurgical stability of segmentalized Le Fort I osteotomies with miniplate fixation in patients with maxillary hypoplasia. Materials and Methods: Eighteen adult patients who had undergone segmentalized Le Fort I osteotomy for anterior and inferior repositioning of their hypoplastic maxilla were studied radiographically. The positional change of five maxillary landmarks (PNS, ANS, A, U1, and UM) were measured on serial cephalometric radiographs according to a reference frame constructed by using the SN line for superimposition, sella as the origin of the coordinates, and a line parallel to Frankfort horizontal plane as the x- axis. The positional changes of all variables were measured twice, and the means were calculated for analysis. The paired t-test was used for statistical analysis. Results: Statistically significant mean vertical change (P < .01) was found in the anterior maxilla, with U1 having moved up by 27.8% (1.5 mm) of its initial downward surgical movement by 1 year postoperatively. U1 and UM had moved forward 2.0 mm and 1.5 mm, respectively (P < .01) by 1 year postoperatively, but the bony landmarks had no statistically significant change in their horizontal positions. Conclusion: Although statistically significant postsurgical changes were found at 1 year postoperatively, overcorrection is not recommended because of the large individual variation observed and the relatively small magnitude of the relapse.en_HK
dc.languageengen_HK
dc.publisherWB Saunders Co. The Journal's web site is located at http://www.elsevier.com/locate/jomsen_HK
dc.relation.ispartofJournal of Oral and Maxillofacial Surgeryen_HK
dc.subject.meshAdulten_HK
dc.subject.meshBone Platesen_HK
dc.subject.meshCephalometryen_HK
dc.subject.meshFemaleen_HK
dc.subject.meshFollow-Up Studiesen_HK
dc.subject.meshFracture Fixation, Internal - instrumentation - methods - statistics & numerical dataen_HK
dc.subject.meshHumansen_HK
dc.subject.meshMaleen_HK
dc.subject.meshMalocclusion, Angle Class III - radiography - surgeryen_HK
dc.subject.meshMaxilla - abnormalities - radiography - surgeryen_HK
dc.subject.meshOsteotomy - instrumentation - methods - statistics & numerical dataen_HK
dc.subject.meshRecurrenceen_HK
dc.subject.meshRetrospective Studiesen_HK
dc.subject.meshVertical Dimensionen_HK
dc.titleThe stability of segmentalized Le Fort I osteotomies with miniplate fixation in patients with maxillary hypoplasiaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0278-2391&volume=53&spage=1407&epage=1412&date=1996&atitle=The+stability+of+segmentalized+le+fort+I+osteotomies+with+miniplate+fixation+in+patients+with+maxillary+hypoplasiaen_HK
dc.identifier.emailHagg, U:euohagg@hkusua.hku.hken_HK
dc.identifier.authorityHagg, U=rp00020en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/0278-2391(95)90665-7-
dc.identifier.pmid7490650-
dc.identifier.scopuseid_2-s2.0-0028850074en_HK
dc.identifier.hkuros21840en_HK
dc.identifier.hkuros12053-
dc.identifier.volume53en_HK
dc.identifier.issue12en_HK
dc.identifier.spage1407en_HK
dc.identifier.epage1413en_HK
dc.identifier.isiWOS:A1995TH30300009-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChow, J=7401728820en_HK
dc.identifier.scopusauthoridHagg, U=7006790279en_HK
dc.identifier.scopusauthoridTideman, H=7005602469en_HK
dc.identifier.scopusauthoridBloomquist, DS=7003640780en_HK

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