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Maxillary and mandibular displacement in hemifacial microsomia: a longitudinal Roentgen stereometric study of 21 patients with the aid of metallic implants.

Abstract：

OBJECTIVE:To record maxillary and mandibular displacement with articular growth and in response to bimaxillary surgical repositioning in patients with hemifacial microsomia (HFM) and to observe ipsilateral corpus/ramus growth in severely affected children. DESIGN:Prospective roentgen stereometric analysis (mean age 7 years 10 months to 18 years 0 months) and retrospective profile and panoramic roentgenograms. Mean total observation period was 9 years 1 month. SETTING:Department of Plastic and Reconstructive Surgery, Malmö University Hospital (Malmö, Sweden). PATIENTS:Twenty-one patients consecutively diagnosed from 1976 through 1988 with HMF, five of whom had bimaxillary surgery. INTERVENTIONS:Surgery was performed at the Department of Plastic and Reconstructive Surgery. Implants were inserted at the initial reconstructive surgical procedure under general anesthesia. Roentgen examinations were performed in connection with continued clinical evaluations and treatment. MAIN OUTCOME MEASURES:Stereo roentgenograms were digitized at the Department of Orthopedic Surgery, Malmö University Hospital (Malmö, Sweden). RESULTS:Displacement of the jaws with articular growth and in response to bimaxillary surgical repositioning varied interindividually with no apparent common pattern. Relapse displacement occurred several years after bimaxillary surgery. Mandibular growth changes were found in the corpus/ramus area and alveolar process on the affected side. CONCLUSIONS:A marked interindividual variability of maxillary and mandibular displacement indicates that the relevance of statistical analysis of HFM growth data may be questioned. We would suggest that precise and accurate longitudinal recordings of growth and response to surgery in individual HFM patients be more appropriate.

journal_name

Cleft Palate Craniofac J

journal_title

The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association

authors

Sarnäs KV,Rune B,Aberg M

doi

10.1597/02-123.1

keywords:

subject

Has Abstract

pub_date

2004-05-01 00:00:00

pages

290-303

issue

eissn

1055-6656

issn

1545-1569

pii

02-123

journal_volume

pub_type

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Maxillary and mandibular displacement in hemifacial microsomia: a longitudinal Roentgen stereometric study of 21 patients with the aid of metallic implants.