Premature epimetaphyseal fusion Premature epimetaphyseal fusion in radius 2014-01-04T02:09:50Z HP:0012566 Stop of growth at the epiphyseal plate the hyaline cartilage plate in the metaphysis at one or more long bones in the radius, at an earlier than normal age, resulting in growth arrest and shortening of the involved bone. UMLS:C4022841