title: The OMT Classification of Congenital Anomalies of the Hand and Upper Limb.
abstract: The Oberg, Manske and Tonkin (OMT) Classification of congenital anomalies of the hand and upper limb uses dysmorphological terminology, placing conditions in one of three groups: Malformations, Deformations and Dysplasias. The main group, Malformations, is further subdivided according to whether the whole of the limb is affected or the hand plate alone, and whether the primary insult involves one of the three axes of limb development and patterning or is non-axial. The common surgical diagnoses, such as thumb duplication and thumb hypoplasia, are then placed within this framework. Recently the International Federation of Societies for Surgery of the Hand Scientific Committee for Congenital Conditions approved the OMT Classification as a timely and appropriate replacement of the previously accepted Swanson Classification. This review charts the development of and modifications to the OMT Classification and its current status.
authors.affiliation: † Department of Hand Surgery & Peripheral Nerve Surgery, Royal North Shore Hospital, The Children's Hospital at Westmead, University of Sydney, Sydney, Australia.
authors.forename: Michael A
authors.initials: MA
authors.lastname: Tonkin
authors.affiliation: * Divisions of Human Anatomy and Pediatric Pathology, Loma Linda University & Children's Hospital, California, USA.
authors.forename: Kerby C
authors.initials: KC
authors.lastname: Oberg
mesh_terms: D006228:Hand Deformities, Congenital / Q000145:classification* / Q000473:pathology* / Q000601:surgery; D006801:Humans
keywords: Classification; Congenital; Hand; Upper limb