The O.M.E.N.S. Classification of Hemifacial Microsomia

Author:

Vento A. Ronald1,Labrie Richard A.2,Mulliken John B.1

Affiliation:

1. The Harvard Medical School. The Children's Hospital and Brigham and Women's Hospital, Boston, MA

2. The Harvard School of Public Health. the Division of Plastic Surgery at The Children's Hospital and Brigham and Women's Hospital, Boston, MA.

Abstract

The wide spectrum of anomalies associated with hemifacial microsomia (HFM) has made systematic and inclusive classification difficult. We propose a nosologic system In which each letter of the acronym O.M.E.N.S. Indicates one of the five major manifestations of HFM. O for orbital distortion; M for mandibular hypoplasia; E for ear anomaly; N for nerve Involvement; and S for soft tissue deficiency. The O.M.E.N.S. system is easily adapted for data storage, retrieval, and statistical analysis. A retrospective study of 154 patients with HFM classified according to the O.M.E.N.S. system confirmed the concept that the mandibular deformity is the cornerstone of the anomaly. Statistical analysis demonstrated a positive association between mandibular hypoplasia and the severity of orbital, auricular, neural, and soft tissue involvement. This study did not confirm a previously reported predominance of gender or sidedness. Analysis of statistical correlations failed to substantiate a Goldenhar variant as a syndromic entity. Our analysis showed that palatal deviation is probably caused by muscular hypoplasia and not by weakness of a particular cranial nerve.

Publisher

SAGE Publications

Subject

Otorhinolaryngology,Oral Surgery

Reference43 articles.

1. Microtia

2. CohenM.M.Jr. (1982). The child with multiple birth defects. New York: Raven Press, 156–165.

3. ON HEMIFACIAL MICROSOMIA

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