Key Points
Based on the HOOS, Jr (Hip disability and Osteoarthritis Outcome Score) survey patient-reported outcome measure (PROM), 97.9% of PAMF patients achieved a meaningful improvement after elective primary total hip arthroplasty (non-emergent initial joint replacement) at 12 months after their surgery.
Based on the KOOS, Jr (Knee disability and Osteoarthritis Outcome Score) survey patient-reported outcome measure (PROM), 94.9% of PAMF patients achieved a meaningful improvement after elective primary total knee arthroplasty (non-emergent initial joint replacement) at 12 months after their surgery.
Calculation Information
Calculations were performed utilizing the same methodology in the AAOS (American Academy of Orthopaedic Surgeons)/American Joint Replacement Registry 2021 Annual Report. Meaningful improvement was calculated by minimal clinical important difference (MCID) determined to be a positive change score of half the pooled standard deviation. Only patients with a linked postoperative score were included in the analysis (378 hip and 391 knee patients). PAMF patient surveys included were from Palo Alto, Camino (Los Gatos/Mountain View) and Santa Cruz regions for surgeries from 2016-2019.
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