The Oberg, Manske, and Tonkin Classification of Congenital Upper Limb Anomalies: A Consensus Decision-Making Study for Difficult or Unclassifiable Cases

Abstract

Purpose: An ideal classification system promotes communication and guides treatment for congenital upper limb differences (CULDs). The Oberg, Manske, and Tonkin (OMT) classification utilizes phenotypic presentation and knowledge of developmental biology for the classification of CULDs. In this consensus decision-making study, we hypothesized that CULDs that are difficult to classify would be identically classified by a group of experienced pediatric hand surgeons. Methods: An international consortium of 14 pediatric hand surgeons in 3 countries contributed a group of 72 difficult-to-classify CULD cases. These were identified from the clinical practices of the surgeons and from associated reg..