The Science behind the DePuy ASR Metal-on-Metal Hip Implant Problems

 

The Science behind the DePuy ASR Metal-on-Metal Hip Implant Problems
Hip implant devices are made from several different materials including metal-on-metal, metal-on-polyethylene, metal-on-ceramic as well as those which are made entirely of ceramic or polyethylene. While each type of hip implant has its pros and cons, the metal-on-metal implant was developed as a way of sparing implant recipients the necessity of a revision surgery eight, ten or twelve years down the line. The metal-on-metal implant will typically last from fifteen to twenty years meaning those recipients in their sixties might be spared a revision surgery. As far back as 1937, very crude stainless steel implants attached with bolts and screws was tried then in 1955 a more sophisticated version of the metal-on-metal hip implant was used. The FDA did not actually approve the metal-on-metal implant until 1999 and since that time almost 17,000 problems with the all-metal hip implants have been reported to the FDA, with 12,000 of those reports coming in during 2011 alone. 

The Science behind the DePuy ASR Metal-on-Metal Hip Implant Problems

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Boomers mean big business in joint replacement | BetterLiving.com

Arthritis is a disease where you lose cartilage and then you progressively lose bone, and then you progressively stretch out ligaments, in that order. So, if you have arthritis on the inner side of your knee, which is the most common pattern, as the cartilage wears out, the bones go into a bow-legged position, and then, that bone wears, then you actually start to lose bone, and then eventually you actually start to stretch out the tissues on the outside of the knee just from tension, and then they become unstable. People feel the knees are wobbly or they’re afraid to go down a flight of steps normally or carry their laundry down a flight of steps. Or older people will fall.

Boomers mean big business in joint replacement | BetterLiving.com.

A HIP New World

 

 

Well, the more people I meet, the more I hear about becoming bionic – with all types of body parts being replaced…it’s pretty surreal, especially when you go through it yourself.