title: Failure of a cemented all-polyethylene patellar component of a Press-Fit Condylar Total Knee arthroplasty.
abstract: A 65-year-old woman had a posterior cruciate-retaining cemented Press-Fit Condylar (PFC; Johnson & Johnson Professional, Inc., Raynham, MA) knee replacement with resurfacing of the patella using a cemented all-polyethylene, 3-peg component. Five years postoperatively, the patient developed anterior knee pain. The patella tracked normally, but radiographs showed a shift of the patellar component. At revision, there was shear failure of all 3 fixation pegs and loosening of the component. Revision with a cemented Press-Fit Condylar Sigma patellar 3-peg component (Johnson & Johnson Professional, Inc., Raynham, MA) was performed.
authors.affiliation: Department of Orthopaedics, University of North Carolina, Chapel Hill 27599-7055, USA.
authors.forename: E I
authors.initials: EI
authors.lastname: Francke
authors.forename: P F
authors.initials: PF
authors.lastname: Lachiewicz
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee; D001843:Bone Cements; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D020370:Osteoarthritis, Knee / Q000601:surgery; D011095:Polyethylenes; D011474:Prosthesis Design; D011475:Prosthesis Failure
chemical_list: D001843:Bone Cements; D011095:Polyethylenes