title: Failure of the Stem-Condyle Junction of a Modular Femoral Stem in Revision Total Knee Arthroplasty.
abstract: Newer technologies have been established in modern revision total knee arthroplasty, including modular junctions, which allow customization of the prosthesis intraoperatively. We report a case of failure of the stem-condyle junction of a modular femoral component of a revision total knee implant, despite appearing well fixed on preoperative radiographs. Intraoperatively, there was dissociation of the condylar component from the well-fixed, cemented stem, creating motion at the stem-condyle junction. To our knowledge, this failure mode has not been reported in the literature.
authors.affiliation: Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN. Boe.Chelsea@mayo.edu.
authors.forename: Chelsea C
authors.initials: CC
authors.lastname: Boe
authors.forename: Keith A
authors.initials: KA
authors.lastname: Fehring
authors.forename: Robert T
authors.initials: RT
authors.lastname: Trousdale
mesh_terms: D019645:Arthroplasty, Replacement, Knee; D005260:Female; D005269:Femur / Q000601:surgery*; D006801:Humans; D007720:Knee Prosthesis; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation