title: Patellofemoral arthroplasty: the other unicompartmental knee replacement.
abstract: Patellofemoral arthritis is a relatively common condition, affecting up to 24% of women and 11% of men over the age of fifty-five years who have symptomatic osteoarthritis of the knee. Isolated patellofemoral arthritis is not as prevalent and has been reported to occur in 9% of radiographs of symptomatic knees in individuals over the age of forty years. Approximately 75% of all patellofemoral arthroplasties are done in women, and the increased frequency of patellofemoral disease may be related to the frequency of knee malalignment and dysplasia in women, although some studies have noted no sex-specific differences in knee kinematics.
authors.affiliation: Campbell Clinic Orthopaedics, University of Tennessee, 1458 West Poplar Avenue, Suite 100, Memphis, TN 38017, USA.
authors.forename: Torrance
authors.initials: T
authors.lastname: Walker
authors.forename: Brian
authors.initials: B
authors.lastname: Perkinson
authors.forename: William M
authors.initials: WM
authors.lastname: Mihalko
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000175:diagnosis / Q000601:surgery*; D010147:Pain Measurement; D057071:Patellofemoral Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000601:surgery; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D012086:Reoperation / Q000379:methods; D018570:Risk Assessment; D016896:Treatment Outcome