title: Total hip arthroplasty in dwarfism. A case report.
abstract: In dwarfism hip arthritis, usually secondary to hip dysplasia, is a common finding at an early age. In these patients a joint replacement is a demanding procedure due to the peculiar joint deformity and the small size of the bones. We present a case of a bilateral hip replacement in a dwarf patient. In order to reduce intraoperative complications and improve the joint kinematics a thorough preoperative planning was performed by a CT based computerised system. On the basis of the planning we chose a conical shaped stem that enable as to restore limb length and offset with a low risk of femoral fracture. In conclusion, we consider total hip replacement in dwarfism a safe and effective procedure if an accurate preoperative planning is performed.
authors.affiliation: 1st Unit of Orthopaedic Surgery, Laboratory for Medical Technology (LTM), Istituto Ortopedico Rizzoli, Via Pupilli 1, 40136, Bologna, Italy.
authors.forename: Marcello
authors.initials: M
authors.lastname: De Fine
authors.forename: Francesco
authors.initials: F
authors.lastname: Traina
authors.forename: Massimo
authors.initials: M
authors.lastname: Palmonari
authors.forename: Enrico
authors.initials: E
authors.lastname: Tassinari
authors.forename: Aldo
authors.initials: A
authors.lastname: Toni
mesh_terms: D000368:Aged; D001168:Arthritis / Q000209:etiology* / Q000601:surgery*; D019644:Arthroplasty, Replacement, Hip; D004392:Dwarfism / Q000150:complications*; D005260:Female; D006621:Hip Joint; D006801:Humans