Saturday, October 1, 2011

Follow up from my Pre op appointment with my orthopedic surgeon

On Thursday, I listed the remaining  6 questions for the orthopedic surgeon prior to my surgery. These are his answers below:

1.  The status of the research test is setting the baseline for the abnormal chromosome test as indicators for cancer over time.

His response was that he checked 3 labs in our city and not one of the labs performed that test.  He suggested that I check the Cleveland clinic.  I will follow up on this and advise in the blog.

2. We discussed the elevated bone resorption at the top outer portion of my femur.  I asked him how frequently he replaced the femur in revisions and his answer was ZERO!  Replacing the femur is of course a much more involved surgery than swapping out the ball and socket.  He advised that he will be reviewing the area of the femur but did not anticipate having to replace it.  If he had to replace he would but was very skeptical that it needed replacing.

That was great news as it implies a less traumatic surgery so far as I was concerned.

3.  He had no insight into the surge in the recent reports of issues with the Depuy Pinnacle reports to the FDA but would definitely check into it.  He agreed that the question is one that should be addressed.  If he can't get a satisfactory answer from Depuy, we will select an alternative to the Pinnacle. 

4.  He clarified that the so called "fretting" was not caused from the head rubbing against the  acetablum  (two bearing surfaces) but rather was a result of the  modular connection of the femeral head (trunnion)  if I understood him correctly.

5.  He said metal on metal implants constituted less that 20% of his practice in the past and he stopped using them totally now.

6.  I was also concerned about this oxidation of chromium 6 to chromium 3.  He didn't know but he was going to check into this as well. It is really a critical issue as far as I am concerned.  Why?  The market is under the impression that the depuy hip is comprised of chromium 3, the less toxic form of chromium.  Based on the studies I have seen, I continue to wonder if the Chromium 3 is oxidized chromium 6 (the toxic form.)  Oxidative stress as it is called, appears to be a big issue in the cancer literature. 

I will spend the next week finding publications on this topic for our review: oxidative stress-what is it and how is it linked to cancer.

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