title: Bilateral total hip replacement in osteogenesis imperfecta with hyperplastic callus.
abstract: Osteogenesis imperfecta is a rare inherited disorder of connective tissue which may present with recurrent fractures which are prone to nonunion and malunion resulting in deformity. Some patients develop osteoarthritis of the hip. Formation of hyperplastic callus after recurrent fractures may deform the shape of the femur and preclude the use of standard implants at joint replacement. Replacement can thus be technically demanding. We present a case of bilateral hip replacement in a patient with osteogenesis imperfecta and hyperplastic callus which was treated by the use of long femoral allografts and cemented femoral stems.
authors.affiliation: Holland Orthopaedic and Arthritic Centre, Toronto, Ontario, Canada.
authors.forename: R
authors.initials: R
authors.lastname: Ramaswamy
authors.forename: Y
authors.initials: Y
authors.lastname: Kosashvili
authors.forename: H
authors.initials: H
authors.lastname: Cameron
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D002146:Bony Callus / Q000601:surgery*; D005269:Femur / Q000637:transplantation; D005594:Fracture Fixation, Intramedullary / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010013:Osteogenesis Imperfecta / Q000601:surgery*; D011475:Prosthesis Failure; D012086:Reoperation; D016896:Treatment Outcome