In this episode, Mo and Marc are joined by Special Guests Ron Navarro, MD, FAAOS, FAOA (JBJS Deputy Editor for Evidence-Based Orthopaedics), and Kanu Okike, MD (JBJS Deputy Editor for Health Disparities) in a discussion of the origins of the Kaiser-Permanente database and its role in effecting practice change. Links: • None Subspecialties: • Elbow • Foot & Ankle • Hand & Wrist • Hip • Infection • Knee • Oncology • Orthopaedic Essentials • Pain Management • Rehabilitation • Pediatrics • Spine • Shoulder • Sports Medicine • Trauma Keywords: Orthopaedics, orthopedics, JBJS, OrthoEvidence, Kaiser-Permanente, KP, database, trauma, arthroplasty, registry, Swedish registry, hip fracture registry, joint registry, Social Security database, follow-up, complications, mortality, evidence-based medicine, medical publishing, Epic, data-mining, PearlDiver, Medicare database, biostatisticians, epidemiologists, funders, implant manufacturers, implant tracking, surgical volume, health insurance, research methodology, confounding factors, hemiarthroplasty, cemented, press-fit, uncemented, Hawthorne effect, practice change, ACL, allografts, autografts, culture, physician payment, industry, impact, data hierarchy