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PAMF Hip and Knee Replacement Surgery Patient Outcomes

98% of PAMF patients achieved a meaningful improvement after elective primary total hip arthroplasty and 94.7% of PAMF patients achieved a meaningful improvement after elective primary total knee arthroplasty. This is in comparison to the AAOS American Joint Replacement Registry. 90.9 % for Hip Arthoplasty and 85.5% for Knee Arthoplasty. The data is through 2020

Key Points

Palo Alto Medical Foundation elective hip and knee replacement patients had greater meaningful improvement compared with United States national outcomes from the American Academy of Orthopaedic Surgeons (AAOS) in their 2022 American Joint Replacement Registry (AJRR) Annual Report.

Based on the HOOS, Jr (Hip disability and Osteoarthritis Outcome Score) survey patient-reported outcome measure (PROM), 98.0% 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), 94.7% 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 as in the 2022 AJRR 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 (446 hip and 450 knee patients).  PAMF patient surveys included were from Palo Alto, Camino (Los Gatos/Mountain View) and Santa Cruz regions for surgeries from 2016-2020. 

Related Content

  • Joint Replacement
  • Knee Replacement
  • Hip Replacement

Doctors at Palo Alto Medical Foundation

The following doctors are part of the Sutter Health network. Learn about the doctors on this site.
Karl Christoffersen, M.D.

Karl Christoffersen, M.D.

  • Orthopedic Surgery

Frank S. Chen, M.D.

Frank S. Chen, M.D.

  • Orthopedic Surgery

John V. Lannin, M.D.

John V. Lannin, M.D.

  • Orthopedic Surgery

James D. Spiegel, M.D.

James D. Spiegel, M.D.

  • Orthopedic Surgery

Bradley P. Graw, M.D.

Bradley P. Graw, M.D.

  • Orthopedic Surgery

James S. Page, M.D.

James S. Page, M.D.

  • Orthopedic Surgery

Robert Detch, M.D.

Robert Detch, M.D.

  • Orthopedic Surgery

James M. Hartford, M.D.

James M. Hartford, M.D.

  • Orthopedic Surgery

Musa B. Zaid, M.D.

Musa B. Zaid, M.D.

  • Orthopedic Surgery

View All Related Doctors

Services Near You

Santa Cruz Chanticleer Center (2907)

Santa Cruz Chanticleer Center (2907)

2907 Chanticleer Avenue

Santa Cruz, CA 95065

(831) 477-2375

Mountain View Center

Mountain View Center

701 East El Camino Real

Mountain View, CA 94040

(650) 934-7000

Los Gatos Winchester Center

Los Gatos Winchester Center

15720 Winchester Blvd.

Los Gatos, CA 95030

(650) 934-7000

View All Related Locations

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