title: Functional Outcomes in High-function-demand patients after total knee arthroplasty.
abstract: Total knee arthroplasty is a safe last-resort treatment for osteoarthritis that has excellent results in low-function-demand elderly patients. Current implants offer the same results in high-function-demand patients. However, supportive data do not exist.One-year Krackow Activity Scores (KAS) of 552 patients from 2 prospective studies were used to retrospectively determine low- and high-function-demand populations. Low function demand was defined as a KAS between 1 and 9 points, and high function demand was defined as a KAS between 10 and 18 points. Patients were assessed preoperatively and at 6 weeks, 3 months, and 1 and 2 years postoperatively per the Knee Society Score-function domain, KAS, SF-36, range of motion, and pain. Comparability between groups was tested for demographics and comorbidities.Both groups showed significant improvement in function, range of motion, and pain 2 years postoperatively. High-function-demand patients had comparable improvement in function compared with low-function-demand patients. Excellent function can be achieved in high-function-demand patients.
authors.affiliation: Orthopaedic Surgery Department, Westchester Medical Center, New York Medical College, Valhalla, New York 10595, USA. santiago.a.lozano.calderonmd@gmail.com
authors.forename: Santiago A
authors.initials: SA
authors.lastname: Lozano Calderón
authors.forename: Jianhua
authors.initials: J
authors.lastname: Shen
authors.forename: Diana F
authors.initials: DF
authors.lastname: Doumato
authors.forename: Steven
authors.initials: S
authors.lastname: Zelicof
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000379:methods* / Q000534:rehabilitation; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000503:physiopathology / Q000601:surgery; D017063:Outcome Assessment, Health Care; D010146:Pain / Q000503:physiopathology; D010147:Pain Measurement; D011446:Prospective Studies; D016059:Range of Motion, Articular; D020127:Recovery of Function / Q000502:physiology*; D055815:Young Adult