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Onlay and inlay designs of implants for isolated patellofemoral disease demonstrated similar functional improvements and better pain scores. Patients who received the inlay implant, however, did not show osteoarthritis progression in a study published in Knee Surgery, Sports Traumatology, Arthroscopythat compared the inlay-style Arthrosurface HemiCap Wave implant with traditional onlay-style implants for this indication.
In the onlay group, 53% of patients demonstrated osteoarthritis (OA) progression in other parts of their knees, a condition that may lead to the need to revise a patellofemoral (PF) implant with total knee arthroplasty, according to a press release from Arthrosurface.
“I believe our patients’ remarkable success stories and their unmatched return to high-demand activities reignited interest in treating isolated PF joint disease within the orthopedic community…,” Steven Ek, president and CEO of Arthrosurface, stated in the release.
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