If the pain from early failure of the things causes you to adopt new sleeping habits for relief, will you become known as a Marley?
Iron, Lie on, Side on.......
I know, I know, the second word is "off"...
UK "advanced medical devices" firm Smith & Nephew has recalled about 575 knee implants because they contain "too much iron", the BBC reports. About 275 patients are already sporting the metal-heavy implants from the TC-PLUS, VKS and RT-PLUS ranges, and the company is trying to track down another 300 which have been "supplied …
"A spokeswoman admitted that whipping the implants out might cause "more distress and worry" than leaving them be,"
No shit sherlock!
Your not just going to walk up to someone, open their knee and whip the bloody thing out are you! OFcorse that will cause more distress - They've got no knee!!
Shall I go before I get ahead of myself?
~100% iron would be unsuitable, for sure. You'd rust...
"The metal components (often the femoral and sometimes the tibial) are made of a steel alloy which has cobalt, chromium and molybdenum in it. This material is inert in the body - it does not react with the tissue and fluids in the body to cause problems, and is mechanically very strong. Tibial components can be made of titanium instead which has great strength and is lighter than steel."
Stainless steel, basically.
i understand that (at the moment) each leg joint can only be replaced the once, with a prosthetic that lasts 15 years or so (depending on how fat you are?)
if one of these potentially "defective" joints lasts significantly less long than that, surely they've wrecked the individuals mobility?
take them to court! they wouldn't have a leg to stand on!!
(sorry, someone done that one already? damn!)
there must be some room here for a hip-hop joke, but I don't know any.
"hardcore Titanium stuff"
I think the substance you are thinking of is tantalum, although there are many different types of hip replacement, which use different substances, including ceramics and plastics. You would have to ask an orthopaedic surgeon. Be nice to their secretaries, they are good people.
"i understand that (at the moment) each leg joint can only be replaced the once"
Revision total hip replacements are not uncommon; if the initial operation goes badly, or the patient sustains a fracture, or a dislocation, or the implant becomes loose, or the patient has a leg length discrepancy, or the patient simply lives for a very long time, a joint replacement can be replaced if the consultant is willing to do it, and the patient is willing to accept the risks. With revision procedures the surgery takes longer and it is more complicated, and also the patient is older, and may be suffering from whatever has caused the implant to become loose. Again, you would need to ask an orthopaedic surgeon, and don't go into a panic if you read alarming things on the internet.
I choose Paris Hilton as my avatar. You killed my father. Prepared to die.
Joints such as this are usually produced from 316 grade Stainless Steel and the specification of material is normally pinned down to a particular sub-grade of this metal. Its used generally throughout the medical world but is particularly expensive and hard to get hold of (thanks to those industrious Chinese).
Titanium is the other favoured material but is even more expensive than 316 SS and may not necessarily be suitable for joints. I remember from my days as an aircraft engineer that it was a bugger to machine.
well that's just fan-bl**dy-tastic. On top of the HMRC losing all my child benefit details, the Inland Revenue losing 4 years of my NI contributions, and going deaf from all industrial noise I was exposed to years ago by HM Govt, now my knee replacement has to go back. Going to put a new one back in, are they? or am i going to have to wobble around on one leg like Long John Silver?
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