StelKast, Inc., a privately held manufacturer and distributor of orthopedic implants for knee and hip replacement, has received 510(k) clearance from the FDA to market its product Exp for the company’s Proven Gen-Flex Total Knee System. EXp is a blend of the antioxidant vitamin E (a-tocopherol) and a cross-linked polyethylene technology that, StelKast affirms, preserves mechanical properties to ensure lasting implant performance.
According to the news release, StelKast was the first company to introduce this technology in the U.S. in 2011 as an alternate bearing material in hip replacements.
“Incorporating our unique EXp polyethylene technology with our Proven Gen-Flex Total Knee System allows our knee patients to benefit from the extraordinary success currently offered by our hip products, ” said John Reyher, senior vice president and general manager of StelKast. “EXp will further enhance the durability of our knee devices providing orthopedic surgeons with more advanced, cost-effective solutions for their patients.”
Full commercial launch of the EXp knee products is planned for September 2013.


I have a question for you. How long can you have a stelkast and can it cause arsenic in the body? Can this cause your knee to come out of place if it has been in for a decade?
I meant hip not knee. Can it cause the hip to come out?