MicroPort Orthopedics today released the results from a study of its Medial-Pivot knee system, touting high rates of satisfaction and survivorship at 17 years.
Results from the trial, including long-term clinical and radiographic outcomes, were publsiehd in the medical journal The Knee.
Data from the 325 patient trial exploring patients with knee osteoarthritis who underwent total knee arthroplasty procedures using the company’s Medial-Pivot prosthesis indicated a statistically significant improvement on the Knee Society clinical rating system.
Improvements were also noted on the Western Ontario and McMaster Universities Osteoarthritis index, as well as the Oxford knee score, the company said. A total of 94% of patients were able to perform age-appropriate activities with average knee flexion of 120°, with 98% of patients reporting pain relief to be excellent, very good or good.
A survival analysis of patients in the trial indicated a cumulative success rate of 98.8% at 17 years, the company said.
It has been reported that approximately 20% of patients are not satisfied with the outcome of their total knee replacemen
“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. 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,” Dr. David Backstein of Toronto’s Mount Sinai Hospital said in a prepared statement.
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