Three children with osteogenesis imperfecta who were treated with fragmentation, realignment and intramedullary rod fixation (Sofield and Millar, 1959) have been followed up for considerable period. Repeated fractures in other sites as well as deformities occurred in overgrown part as the children grew up necessitated further operations of same kind. However, level of activity afterwards was found very much enhanced by the operations in general.