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Conference Paper: Cleft distraction versus orthognathic surgery - which is more stable?

TitleCleft distraction versus orthognathic surgery - which is more stable?
Authors
Issue Date2006
PublisherChurchill Livingstone. The Journal's web site is located at http://www.elsevier.com/locate/jcms
Citation
The XVIII Congress of the European Association for Cranio-Maxillofacial Surgery, Barcelona, Spain, 12–15 September 2006. In Journal of Cranio-Maxillofacial Surgery, 2006, v. 34 suppl. 1, p. 98, abstract no. O.357 How to Cite?
AbstractIntroduction: Distraction osteogenesis has opened new perspective for the treatment of various skeletal anomalies, particularly for the cleft lip and palate patients. Objective: To compare the stability of maxillary Le Fort I advancement in CLP patients by either distraction with internal distractors or immediate transposition with titanium plate fixation. Methods: Fourty CLP patients with moderate maxillary hypoplasia requiring a Le Fort I advancement of 4–10 mm were randomized to either distraction or immediate fragment transposition. The conventional Le Fort I osteotomy was fully mobilized to the pre-planned position and fixed using titanium mini-plates. The Le Fort I distraction was only mobilized to a limited extent without achieving the final surgical position. Fixation was achieved on the zygoma and the molar alveolus with an intra-oral bone-borne maxillary distractor on each side. Results: The mean advancement for the distraction group and the osteotomy group was 6.83 and 6.72 mm, respectively. In the osteotomy group a relapse of both A-point and P-point in the upward and backward direction of 15% was noted between the 2nd and 8th week post-operatively. In contrast, the A-point moved further forward by 30% and downward by 25% at the same interval in the distraction group. The results were statistically significant between the two groups (p <0.05). Conclusion: The result of this study showed that distraction of the cleft maxilla demonstrated better skeletal stability in maintaining its advanced position than conventional orthognathic surgery particularly in the early post-operative 3 months.
Persistent Identifierhttp://hdl.handle.net/10722/94579
ISBN
ISSN
2015 Impact Factor: 1.592
2015 SCImago Journal Rankings: 1.010

 

DC FieldValueLanguage
dc.contributor.authorCheung, LKen_HK
dc.date.accessioned2010-09-25T15:35:36Z-
dc.date.available2010-09-25T15:35:36Z-
dc.date.issued2006en_HK
dc.identifier.citationThe XVIII Congress of the European Association for Cranio-Maxillofacial Surgery, Barcelona, Spain, 12–15 September 2006. In Journal of Cranio-Maxillofacial Surgery, 2006, v. 34 suppl. 1, p. 98, abstract no. O.357en_HK
dc.identifier.isbn978-88-7587-281-6-
dc.identifier.issn1010-5182en_HK
dc.identifier.urihttp://hdl.handle.net/10722/94579-
dc.description.abstractIntroduction: Distraction osteogenesis has opened new perspective for the treatment of various skeletal anomalies, particularly for the cleft lip and palate patients. Objective: To compare the stability of maxillary Le Fort I advancement in CLP patients by either distraction with internal distractors or immediate transposition with titanium plate fixation. Methods: Fourty CLP patients with moderate maxillary hypoplasia requiring a Le Fort I advancement of 4–10 mm were randomized to either distraction or immediate fragment transposition. The conventional Le Fort I osteotomy was fully mobilized to the pre-planned position and fixed using titanium mini-plates. The Le Fort I distraction was only mobilized to a limited extent without achieving the final surgical position. Fixation was achieved on the zygoma and the molar alveolus with an intra-oral bone-borne maxillary distractor on each side. Results: The mean advancement for the distraction group and the osteotomy group was 6.83 and 6.72 mm, respectively. In the osteotomy group a relapse of both A-point and P-point in the upward and backward direction of 15% was noted between the 2nd and 8th week post-operatively. In contrast, the A-point moved further forward by 30% and downward by 25% at the same interval in the distraction group. The results were statistically significant between the two groups (p <0.05). Conclusion: The result of this study showed that distraction of the cleft maxilla demonstrated better skeletal stability in maintaining its advanced position than conventional orthognathic surgery particularly in the early post-operative 3 months.-
dc.languageengen_HK
dc.publisherChurchill Livingstone. The Journal's web site is located at http://www.elsevier.com/locate/jcmsen_HK
dc.relation.ispartofJournal of Cranio-Maxillofacial Surgeryen_HK
dc.titleCleft distraction versus orthognathic surgery - which is more stable?en_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1010-5182&volume=34 &issue=Suppl. S1&spage=p. 98&epage=&date=2006&atitle=Cleft+distraction+versus+orthognathic+surgery+-+which+is+more+stable?en_HK
dc.identifier.emailCheung, LK: lkcheung@hkucc.hku.hken_HK
dc.identifier.authorityCheung, LK=rp00013en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S1010-5182(06)60382-X-
dc.identifier.hkuros127058en_HK
dc.identifier.hkuros125247-
dc.identifier.volume34en_HK
dc.identifier.issuesuppl. 1en_HK

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