title: Early migration of femoral components revised with impacted cancellous allografts and cement. A preliminary report of five patients.
abstract: We report the preliminary findings of the use of roentgen stereophotogrammetric analysis to evaluate the early migration of five femoral components after revision for mechanical loosening using impacted cancellous allograft and cement. All hips were examined at one week, four to six months and one year after surgery. All the components subsided by 0.4 to 4.9 mm during the first year. In four hips the prosthetic head was displaced 1.1 to 6.9 mm posteriorly. Fixation of the femoral components was less secure than after primary arthroplasty but the incidence and magnitude of early migration were similar to those after revision with cement alone.
authors.affiliation: Department of Orthopaedics, Lund University Hospital, Sweden.
authors.forename: H
authors.initials: H
authors.lastname: Franzén
authors.forename: S
authors.initials: S
authors.lastname: Toksvig-Larsen
authors.forename: L
authors.initials: L
authors.lastname: Lidgren
authors.forename: R
authors.initials: R
authors.lastname: Onnerfält
mesh_terms: D000368:Aged; D001178:Arthroplasty / Q000379:methods*; D001843:Bone Cements; D005260:Female; D005270:Femur Head / Q000637:transplantation*; D005500:Follow-Up Studies; D005548:Foreign-Body Migration / Q000209:etiology / Q000601:surgery*; D006615:Hip / Q000000981:diagnostic imaging / Q000601:surgery*; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation; D014184:Transplantation, Homologous / Q000379:methods
chemical_list: D001843:Bone Cements