Document Detail

Curvilinear mandibular distraction results and long-term stability effects in a group of 40 patients.
MedLine Citation:
PMID:  20517103     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: The mandibular internal curvilinear distractor design produces a curvilinear vector to provide ideal three-dimensional curvilinear movements compared with the limited straight unidirectional predecessor devices. In this manner, it corrects craniofacial deformities as anatomically as possible, allowing simultaneous bidirectional (rotational and translational) mandibular movement and multidirectional distraction. The aim of this study was to quantify the sagittal and vertical mandibular changes achieved through curvilinear distraction and to assess the long-term effect of this generated bone.
METHODS: Forty patients (20 male and 20 female), with ages ranging from 5 to 55 years, who underwent mandibular distraction from December of 1999 to August of 2007 at Lucile Packard Children's Hospital in Stanford, California, were included. Preoperatively, postoperatively, and at follow-up (at least 2 years following distraction), panoramic and lateral cephalometric radiographs were traced by plotting different skeletal landmark points and were then analyzed.
RESULTS: All patients tolerated the curvilinear distraction process well through completion. The average of the mandibular body elongation recorded was 8 to 9 mm and 6 to 8 mm in the panoramic and cephalometric radiographs, respectively; whereas the vertical change of the mandibular ramus achieved was 10 to 12 mm and 10 to 11 mm, respectively. The curvilinear distraction effect on the mandible was found to be significantly stable when the long-term follow-up measurements were compared with the postoperative data revealed in the panoramic and lateral cephalometric radiographs for the two dimensions.
CONCLUSION: The internal curvilinear device is an effective tool that achieves a stable mandibular distraction, resulting in the correction of craniofacial deformities.
Dror Aizenbud; Hagai Hazan-Molina; Brinda Thimmappa; Elena M Hopkins; Stephen A Schendel
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Plastic and reconstructive surgery     Volume:  125     ISSN:  1529-4242     ISO Abbreviation:  Plast. Reconstr. Surg.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-06-02     Completed Date:  2010-06-18     Revised Date:  2014-10-13    
Medline Journal Info:
Nlm Unique ID:  1306050     Medline TA:  Plast Reconstr Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1771-80     Citation Subset:  AIM; IM    
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MeSH Terms
Child, Preschool
Cohort Studies
Craniofacial Abnormalities / radiography,  surgery*
Follow-Up Studies
Mandible / abnormalities*,  radiography,  surgery*
Middle Aged
Osteogenesis, Distraction / instrumentation*,  methods*
Retrospective Studies
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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