Michael G. Zywiel

Sinai Hospital, University Health Network

Papers

Total Citations

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About

Michael G. Zywiel is a leading orthopedic surgeon and researcher whose work centers on advancing knee arthroplasty through evidence-based practice and health technology assessment. His major contributions include critically evaluating the scientific evidence for unicompartmental knee arthroplasty, a procedure whose benefits and long-term survivorship remain debated against alternatives like total knee arthroplasty and osteotomy. His landmark 2010 paper, cited 16 times, systematically examined the complete body of evidence to clarify the role of modern unicompartmental knee arthroplasty in treating monocompartmental arthritis. More recently, Zywiel has pioneered research on the cost-effectiveness of robotic-assisted total knee arthroplasty, particularly in middle-income countries where constrained fiscal space and competing public-health priorities create unique challenges. His 2025 analysis, with 5 citations, provides crucial insights into whether the enhanced surgical precision of robotic systems justifies their high costs in resource-limited settings. This work is notable for bridging the gap between technological innovation and real-world healthcare economics, making him a key voice in global orthopedic policy. His research continues to shape surgical decision-making and resource allocation in joint replacement worldwide.