title: Two Revision Surgeries on Cemented Custom-made Tumor Prostheses.
abstract: We performed revision surgery in 2 patients for stem fracture of a cemented tumor prosthesis that occurred more than 25 years after the initial surgery. For revision, the global modular replacement system (GMRS) was used. However, as bone cement in the bone could not be adequately removed, stems with respective diameters of 11 and 12.5 mm were used. In revision surgery for cemented tumor prostheses, adequate removal of residual bone cement is optimal. However, when there is a risk of fracture, it may be appropriate to insert a thicker stem after reaming the femoral canal as much as possible, and then fix the stem using the cement-in-cement method.
authors.affiliation: Department of Orthopedic Surgery, Nihon University School of Medicine, Itabashi-ku, Tokyo 173-8610, Japan.yoshida.yukihiro@nihon-u.ac.jp.
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Yoshida
authors.forename: Yuki
authors.initials: Y
authors.lastname: Okamura
authors.forename: Mamoru
authors.initials: M
authors.lastname: Akita
authors.forename: Masashi
authors.initials: M
authors.lastname: Taniguchi
authors.forename: Toshio
authors.initials: T
authors.lastname: Kojima
authors.forename: Eiji
authors.initials: E
authors.lastname: Osaka
authors.forename: Yasuaki
authors.initials: Y
authors.lastname: Tokuhashi
mesh_terms: D000328:Adult; D001843:Bone Cements / Q000627:therapeutic use; D001859:Bone Neoplasms / Q000601:surgery; D005260:Female; D005266:Femoral Neoplasms / Q000601:surgery; D005269:Femur / Q000601:surgery*; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000601:surgery; D019736:Prostheses and Implants; D011474:Prosthesis Design / Q000379:methods; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation / Q000379:methods*; D013997:Time Factors
chemical_list: D001843:Bone Cements
keywords: custom-made tumor prosthesis; malignant bone tumor; revision