[Imaging of oto-mandibular dysplasias].
The modern imaging opened a possibility of precise exploration of otomandibular dysplasias. The techniques of browsing by IRM and CT Scan and the software of image processing which is associated with these techniques (three-dimensional, superposition and removing of the anatomical structures) allow to carry out a true anatomical dissection of the whole of these malformative syndromes. The study of the skeletal anomalies gains by specifying the disorders of development of the various mandibular segments: temporomandibular joint, ramus and horizontal branch and also, all cranio-maxillar structures: orbital rim, cranial basis. Study of masticatory muscles shows an important damage correlated with skeletal troubles and performs a grading of morphological and functional gravity. This analytical study emphasizes some malformative axis: malar axis in cases of mandibulofacial dystosis, temporomandibular axis in hemifacial microsomia. Modern imaging can appreciate, by development of three-dimensional cephalometry, growth anomalies and quantification of post therapeutical results. At last usefulness of imaging appears in therapeutic modelisation and in the field of Computer-Aided Planning of surgical techniques of osteotomies and overall maxillaries distractions.
Montoya
P
P
Unité de chirurgie plastique pédiatrique, CHU, hôpital Lapeyronie, 371, avenue du doyen G. Giraud, 34295 Montpellier, France.
Leboucq
N
N
Bigorre
M
M
D004423:Ear / Q000002:abnormalities* / Q000601:surgery; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D008342:Mandibulofacial Dysostosis / Q000175:diagnosis* / Q000601:surgery; D008410:Masticatory Muscles / Q000601:surgery; D010027:Osteotomy / Q000379:methods; D014057:Tomography, X-Ray Computed
Imagerie des dysplasies oto-mandibulaires.