There have been several notable advancements. One of the newest is to replace the glenoid(the socket) with a ceramic material that helps to reduces wear of this component. Prior to this, molded polyethylene (PE) was most commonly used, but was also subjected to wear between the polished metal head of the humeral component and the PE. This often meant having to undergo a revision to replace these components in typically 8-12 years under normal conditions. However, its only fair to say this issue is not near the problem that its presented that it is in the hip or the knee where weight bearing, gait, and high activity,e.g., golf, tennis, etc increases the wear factor substantially.
Take a look at Biomet's website and you can see the products they have to give you an idea. Another one is Stryker, and you can also look at DePuy. This last one is probably listed under Johnson & Johnson family of company's. Smith & Nephew might also be another spot to look at these components.
� Another one is Stryker, and you can also look at DePuy. � Would this be that French outfit J&J purchased near Lyon? A guy who worked there made a hunting knife for my collection from an antelope antler we dried (harvested) in the Maghreb. They were experts in replacement knee balls and sockets as I recall.
Ortho, I read your post. What caught my eye was some sort of manipulation of cartilage? I have major joint probs; knees, hips, shoulders and wondering about this as to time line am wanting to hold off on TNR at this time hoping to get some relief /c gene therapy or something that effects a turnaround in the disease state. Comments please! Creper