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Conference Paper: Cleft distraction versus orthognathic surgery - which is more stable?
Title | Cleft distraction versus orthognathic surgery - which is more stable? |
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Authors | |
Issue Date | 2006 |
Publisher | Churchill 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? |
Abstract | Introduction: 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 Identifier | http://hdl.handle.net/10722/94579 |
ISBN | |
ISSN | 2023 Impact Factor: 2.1 2023 SCImago Journal Rankings: 1.031 |
DC Field | Value | Language |
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dc.contributor.author | Cheung, LK | en_HK |
dc.date.accessioned | 2010-09-25T15:35:36Z | - |
dc.date.available | 2010-09-25T15:35:36Z | - |
dc.date.issued | 2006 | en_HK |
dc.identifier.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 | en_HK |
dc.identifier.isbn | 978-88-7587-281-6 | - |
dc.identifier.issn | 1010-5182 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/94579 | - |
dc.description.abstract | Introduction: 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.language | eng | en_HK |
dc.publisher | Churchill Livingstone. The Journal's web site is located at http://www.elsevier.com/locate/jcms | en_HK |
dc.relation.ispartof | Journal of Cranio-Maxillofacial Surgery | en_HK |
dc.title | Cleft distraction versus orthognathic surgery - which is more stable? | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.openurl | http://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.email | Cheung, LK: lkcheung@hkucc.hku.hk | en_HK |
dc.identifier.authority | Cheung, LK=rp00013 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/S1010-5182(06)60382-X | - |
dc.identifier.hkuros | 127058 | en_HK |
dc.identifier.hkuros | 125247 | - |
dc.identifier.volume | 34 | en_HK |
dc.identifier.issue | suppl. 1 | en_HK |
dc.identifier.issnl | 1010-5182 | - |