Patient-reported outcome measures in arthroplasty registries

Area of Science:

• Orthopedic surgery
• Health outcomes research
• Medical informatics

Background:

• Patient-Reported Outcome Measures (PROMs) are crucial for evaluating hip and knee arthroplasty outcomes.
• Standardizing PROM selection and administration is essential for global registry data comparability.
• The International Society of Arthroplasty Registries (ISAR) recognized the need for a dedicated working group.

Purpose of the Study:

• To establish best practices for PROMs in hip and knee arthroplasty registries worldwide.
• To support the adoption and consistent use of PROMs across international registries.
• To evaluate current PROM selection, administration, and interpretation methodologies.

Main Methods:

• Formation of the Patient-Reported Outcome Measures (PROMs) Working Group by the ISAR Steering Committee.
• Survey distributed to 41 ISAR member registries regarding their PROM collection practices.
• Analysis of common generic and specific PROM instruments utilized in arthroplasty registries.

Main Results:

• Eight registries fully implemented PROMs for all elective hip/knee arthroplasty patients; six collected data from samples.
• The EuroQol 5 dimension health outcome survey (EQ-5D) and Short Form 12 (SF-12)/Veterans RAND 12-item health survey (VR-12) were common generic PROMs.
• Hip disability and Osteoarthritis Outcome Score (HOOS), Knee injury and Osteoarthritis Outcome Score (KOOS), Oxford Hip/Knee Scores (OHS/OKS), WOMAC, and UCLA scores were frequently used specific PROMs.

Conclusions:

• ISAR's initiative aims to enhance the quality and comparability of arthroplasty outcome data globally.
• Significant variation exists in PROM implementation across international registries.
• Identification of widely adopted PROMs provides a foundation for future standardization efforts.