title: Disassembly of a distal femur modular prosthesis after tumor resection.
abstract: We report and analyze the causes of a disassembly of a newly marketed distal femur modular prosthesis in a 20-year-old man with stage IIB osteosarcoma. The disassembly occurred after discharge from the hospital, after a minor trauma. Because of the unique displacement of the femoral component, sudden operative management was performed. Disassembly should be considered as a potential complication when choosing a modular prosthesis despite improvements in the design of some recent devices. In cases with a substantial amount of functional muscle excised at the time of tumor resection, adequate postoperative rehabilitation is recommended.
authors.affiliation: Department of Medical Sciences, Division of Orthopedic and Trauma Surgery, Magna Graecia University, School of Medicine, Catanzaro, Italy.
authors.forename: Olimpio
authors.initials: O
authors.lastname: Galasso
authors.forename: Massimo
authors.initials: M
authors.lastname: Mariconda
authors.forename: Antonio
authors.initials: A
authors.lastname: Brando
authors.forename: Bruno
authors.initials: B
authors.lastname: Iannò
mesh_terms: D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D001859:Bone Neoplasms / Q000601:surgery*; D019544:Equipment Failure Analysis; D005269:Femur / Q000601:surgery*; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D012516:Osteosarcoma / Q000601:surgery*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D052097:Quadriceps Muscle / Q000601:surgery; D012086:Reoperation; D055815:Young Adult