[Modifications in the vertical position of the stomion in facial osteotomies and osseous genioplasties].
A retrospective statistical analysis is made on 45 patients who have undergone a facial osteotomy. The authors study the vertical changes of the stomion on pre- and post-operative lateral cephalograms. Considering the bad initial results, it has been necessary to create subdivisions on the surgical procedure and to work on homogeneous groups. The results of this study led to the following conclusions: the stomion follows the vertical displacement of the maxilla on an approximative ratio of 1/3, with rather great variations between the subjects; the functional osseous genioplasties, specially with vertical displacement, are not accompanied by significant vertical changes in the position of the stomion. Furthermore, it is obvious that it is necessary to use a "multivariable" method for a better prevision of the cutaneous changes after facial osteotomies, specially for the lips. Indeed, vertical soft tissue changes are the result of the interactions of many vertical and horizontal surgical squelettal displacements.
Boutault
F
F
Service de Stomatologie et chirurgie maxillo-faciale, Hôtel-Dieu, Toulouse.
Cadenat
H
H
Combelles
R
R
Poirot
A
A
Bodin
H
H
D000328:Adult; D002508:Cephalometry / Q000379:methods*; D006801:Humans; D007569:Jaw Abnormalities / Q000000981:diagnostic imaging / Q000601:surgery*; D008310:Malocclusion / Q000601:surgery; D008334:Mandible / Q000601:surgery; D010027:Osteotomy / Q000379:methods*; D011859:Radiography; D012044:Regression Analysis; D012189:Retrospective Studies
Modifications de la position verticale du stomion dans les ostéotomies faciales et génioplasties osseuses.