Comparable function found with patient-specific vs conventional TKA instrumentation


No significant differences in functional outcomes were found at 2 years postoperatively between patients who underwent total knee arthroplasty with either patient-specific or conventional instrumentation, according to results of this study.

Researchers studied 60 patients diagnosed with tricompartmental osteoarthritis of the knee who selected to undergo either patient-specific instrumentation surgery using Zimmer’s Patient Specific Instruments system or conventional total knee arthroplasty (TKA). Preoperatively and at 6 months and 2 years postoperatively, an independent physiotherapist who was blinded to the surgical technique recorded active range of motion of the operated knee and recorded outcomes using the Knee Society Score, Oxford Knee Score (OKS) and SF-36.


About Peter Coffaro 1426 Articles
A growth-driven and strategic executive, Peter Coffaro commands more than 20 years of progressive management success within the medical device industry. As a District Sales Manager for Stryker Orthopaedics, Peter was responsible for managing and directing a regional sales force to achieve sales and profit goals within the Rocky Mountain region. Previously, he was the Director of Sales & Marketing for Amp Orthopedics. In this role, Peter was responsible for planning, developing, and leading all sales and marketing initiatives. Peter is a former orthopedic distributor in the Pacific Northwest. He has also worked with DePuy Orthopaedics as well as Zimmer, and held positions in sales, sales training, and sales management. Peter has an extensive background in organizational development, business development, sales management, negotiating and P&L management. Peter holds a B.S. degree in Biology from Northern Illinois University.

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