| Title | Facial musculoskeletal asymmetry in hemifacial microsomia. | | Author(s) | Marsh JL, Baca D, Vannier MW | | Institution | Division of Plastic Surgery, Washington University School of Medicine, St. Louis, MO. | | Source | Cleft Palate J 1989 Oct; 26(4):292-302. | | MeSH | Adolescent
Adult
Cephalometry
Child
Child, Preschool
Facial Asymmetry
Female
Humans
Infant
Male
Mandible
Masseter Muscle
Masticatory Muscles
Pterygoid Muscles
Sphenoid Bone
Temporal Bone
Temporal Muscle
Tomography, X-Ray Computed
Zygoma
| | Abstract | Computer-assisted medical imaging--transaxial computed tomography (CT) scans and three-dimensional surface reconstructions--was used to study the muscles of mastication and their osseous origins and insertions in 24 patients with untreated unilateral hemifacial microsomia (HFM). The relationship between the volume of a muscle of mastication and the shape and size of its origin and insertion in such patients varies widely. Comparison of mean volumes of specific muscles documents a statistically significant decrease among patients who have moderate to marked mandibular dysmorphology as compared with those with minimally dysmorphic mandibles. This study supports the hypothesis that the shape and size of the mandible are related to the muscles that originate and insert upon it. However, the variation among individual patients means that assumptions regarding muscle mass and, in turn, function cannot be made regarding an individual patient on the basis of osseous dysmorphology that has been demonstrated on skull radiographs alone. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 2805347 |
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