PAMF Hip and Knee Replacement Surgery Patient Outcomes

97.9% of PAMF patients achieved a meaningful improvement after elective primary total hip arthroplasty and 94.9% of PAMF patients achieved a meaningful improvement after elective primary total knee arthroplasty. This is in comparison to the AAOS American Joint Replacement Registry. 93% for Hip Arthoplasty and 87.9% for Knee Arthoplasty. The data is from 2016-2019.

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.