MicroPort Orthopedics Announces Results of Clinical Study, 98.8% Implant Survivorship of its Medial-Pivot Knee System at 17 Years
February 28, 2017
ARLINGTON, Tenn.–(BUSINESS WIRE)–MicroPort Orthopedics Inc., a medical device company that develops and manufactures cutting edge joint replacement implants designed to help patients achieve full function faster, announced that The Knee has published a study evaluating long-term clinical and radiographic outcomes of the Medial-Pivot Knee System. The results demonstrate excellent clinical outcomes for both satisfaction (95%) and survivorship (98.8%) at 17 years with patients noting a great sense of stability and comfort during regular activities.1
It has been reported that approximately 20% of patients are not satisfied with the outcome of their total knee replacement as a result of residual pain and functional issues often attributed to implant design.2 MicroPort’s Medial-Pivot Knee System is uniquely designed to restore stability and normal knee kinematics to deliver reproducible outcomes that can improve function and drive patient satisfaction.
“I am in my third year of using the Evolution® Medial-Pivot Knee System and this publication validates the results that I have seen in my practice,” says David Backstein, MD, MEd, FRCSC, Head of Orthopaedic Surgery at Mount Sinai Hospital in Toronto, Ontario. “In my experience, the functional outcomes for patients treated with this system have certainly been superior than the systems I’ve used in the past and patients have fewer complaints. When I see them at six or eight weeks follow-up, they’re at a different stage of recovery than I was seeing previously with traditional implant designs. I’ve been exceptionally happy with the results and feel comfortable knowing I am implanting a prosthesis with 98.8% survivorship at 17 years.”
The paper, titled, A Long Term Clinical Outcome of the Medial Pivot Knee Arthroplasty System was authored by George A Macheras et al. from the “KAT” General Hospital, Athens, Greece. In the study, 325 patients with knee osteoarthritis underwent Total Knee Arthroplasty (TKA) using the Medial-Pivot prosthesis. All patients showed a statistically significant improvement in the Knee Society clinical rating system, Western Ontario and McMaster Universities Osteoarthritis Index, and Oxford knee score. The majority of patients (94%) were able to perform age-appropriate activities with average knee flexion of 120° and 98% of patients reported relief of pain to be excellent, very good or good. Additionally, survival analysis showed a cumulative success rate of 98.8% at 17 years.
About MicroPort Orthopedics
Established in January 2014, MicroPort Orthopedics Inc. is a multinational producer of orthopedic products and a proud member of the MicroPort Scientific Corporation family of companies. From its headquarters in Arlington, Tennessee, MicroPort Orthopedics develops, produces, and distributes innovative orthopedic reconstructive products. The company’s U.S.-based manufacturing and logistics capabilities deliver high quality hip and knee products to patients and their doctors in over 60 countries, including the U.S., EMEA, Japan, Latin America, and China markets. For more information about MicroPort Orthopedics, visit http://www.ortho.microport.com/.
MicroPort Scientific Corporation is a leading medical device company focused on innovating, manufacturing, and marketing high-quality and high-end medical devices globally. With a diverse portfolio of products now being used at an average rate of one for every 20 seconds in thousands of major hospitals around the world, MicroPort maintains world-wide operations in a broad range of business segments including Cardiovascular, Orthopedic, Electrophysiological, Endovascular, Neurovascular, Surgical, Diabetes Care and Endocrinal Management, and others. MicroPort is dedicated to becoming a patient-oriented global enterprise that improves and reshapes patient lives through application of innovative science and technology. For more information, please refer to: http://www.microport.com.
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1. George A. Macheras et al. “A long term clinical outcome of the Medial Pivot Knee Arthroplasty System.” The Knee Journal, Published: January 29, 2017.
2. Thambiah, Matthew Dhanaraj et al. “Patient Satisfaction after Total Knee Arthroplasty: An Asian Perspective.” Singapore Medical Journal 56.5 (2015): 259–263. PMC. Web. 22 Feb. 2017.
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