title: Failure of the tibial insert in a rotating hinge total knee arthroplasty.
abstract: There has been a steady increase in the number of revision total knee arthroplasties being performed in the United States. Hinge knee prostheses are used predominantly in complex primary or revision arthroplasties, often as salvage procedures. Significant improvement of the articulation between the rotating hinge mechanism and tibial component has decreased the stresses that contributed to earlier failures in previous generation designs. Two cases of fracture of the tibial metal post in the rotating hinge of a revision total knee arthroplasty were evaluated and treated at our institution within a 1-month period. We present our experience with this construct failure and subsequent patient management.
authors.affiliation: Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, NY 10016, USA.
authors.forename: Ran
authors.initials: R
authors.lastname: Schwarzkopf
authors.forename: Sonia
authors.initials: S
authors.lastname: Chaudhry
authors.forename: Frederick J
authors.initials: FJ
authors.lastname: Kummer
authors.forename: Scott E
authors.initials: SE
authors.lastname: Marwin
mesh_terms: D000368:Aged; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000601:surgery; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D016459:Prosthesis-Related Infections / Q000188:drug therapy; D011859:Radiography; D012086:Reoperation; D013977:Tibia / Q000601:surgery*; D016896:Treatment Outcome
chemical_list: D000900:Anti-Bacterial Agents