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Author Topic: Ions Measured And Normal  (Read 6143 times)

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Lopsided

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Ions Measured And Normal
« on: May 08, 2011, 02:24:17 PM »
Did my yearly health check two weeks ago, and while I was at it, I asked them to measure my chromium and cobalt ions, and just got the results. Eight months from surgery my levels are Co 1.17ug/l, Cr 0.66ug/l (whole blood). These results are good, and I will test again next year, when the device should have reached 'steady state', and see if the levels are lower.

In the recent video of Dr. Brooks, he says the Birmingham is harder because it is not heat treated. Well I got the C+ which is heat treated, and it looks as though it is working for me.



Proud To Be Dr. De Smet's First Uncemented Conserve Plus, Left, August 2010

Neild5

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Re: Ions Measured And Normal
« Reply #1 on: May 08, 2011, 06:48:47 PM »
I understand the advantages of using as-cast metal on metal components, after polishing the carbides are the active bearing points.  By heat treating the casting some of these carbides are lost leaving the softer metals to be the bearing surface.
50 yo male left Biomet 2/28/11, right BHR 2/20/12

Lopsided

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Re: Ions Measured And Normal
« Reply #2 on: May 09, 2011, 01:24:16 AM »
I understand the advantages of using as-cast metal on metal components, after polishing the carbides are the active bearing points.  By heat treating the casting some of these carbides are lost leaving the softer metals to be the bearing surface.

No, I don't go for that at all. CoCr alloys are known as 'stellar' or super alloys because of their properties. The heat treatment improves the smoothness of the finish, so there could be less wear.

Birmingham advocates should understand that there are other devices which can be equally as good. And seeing as no one knows the long term results, possibly better.

There are three FDA approved devices. One of them is the C+. The C+ is not as cast, and now the ASR is off the market, is the device currently with the least clearance and lowest coverage. Dr. Brooks talked in favour of the Birmingham, but it seems the same arguments could have been used for any device.




Proud To Be Dr. De Smet's First Uncemented Conserve Plus, Left, August 2010

Dannywayoflife

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Re: Ions Measured And Normal
« Reply #3 on: May 09, 2011, 08:57:58 AM »
Lopsided, what would be considered normal levels for someone with no inplant?
Train hard fight easy
LBHR 10/11/2011 Mr Ronan Treacy Birmingham England
60mm cup 54mm head
Rbhr 54mm head 60mm cup 12/02/15 Ronan Treacy ROH Birmingham England
;)

Lopsided

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Re: Ions Measured And Normal
« Reply #4 on: May 09, 2011, 11:18:53 AM »
Lopsided, what would be considered normal levels for someone with no inplant?

Apparently, about 0.5 ug/l or somewhere thereabouts for both Co and Cr. There does not seem to be any real standard about what are toxic levels, some sources say 7, some 20. There are also two different ways of measuring, using the whole blood or serum. The whole metal ion level business is not too well documented or accessable.

What is sure is that after you get an implant, your levels go up a bit. The first year the device is wearing in and your ion levels are higher, and then by the first year, you reach 'steady state', and the levels go down a bit. So I will test next year and see if I have gone down.

You have not had your operation yet, so you could get your levels tested now, and then a few months after, and then a year after that, and get a good idea of how your levels go up a bit, and then halfway back down again (especially if you can get tested on the NHS).



Proud To Be Dr. De Smet's First Uncemented Conserve Plus, Left, August 2010

Dannywayoflife

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Re: Ions Measured And Normal
« Reply #5 on: May 09, 2011, 02:16:42 PM »
That sounds a great idea! I'll try and get my doctor to do it on Wednesday!
Train hard fight easy
LBHR 10/11/2011 Mr Ronan Treacy Birmingham England
60mm cup 54mm head
Rbhr 54mm head 60mm cup 12/02/15 Ronan Treacy ROH Birmingham England
;)

Lopsided

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Re: Ions Measured And Normal
« Reply #6 on: May 09, 2011, 02:43:42 PM »
Make sure you ask for the 'whole blood' test, rather than serum. It seems to be the usual test.

And post your results too.

In fact, this could be a new poll: levels before op, wear in levels, and steady state levels.



Proud To Be Dr. De Smet's First Uncemented Conserve Plus, Left, August 2010

Dannywayoflife

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Re: Ions Measured And Normal
« Reply #7 on: May 09, 2011, 03:08:00 PM »
That sounds like a plan! I will try and get my dr to do it and I'll keep you posted!
Train hard fight easy
LBHR 10/11/2011 Mr Ronan Treacy Birmingham England
60mm cup 54mm head
Rbhr 54mm head 60mm cup 12/02/15 Ronan Treacy ROH Birmingham England
;)

einreb

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Re: Ions Measured And Normal
« Reply #8 on: May 09, 2011, 05:02:06 PM »
In the recent video of Dr. Brooks, he says the Birmingham is harder because it is not heat treated. Well I got the C+ which is heat treated, and it looks as though it is working for me.

DeSmet did a nice writeup comparing the wear rates and blood metal levels between the C+ (heat treated) and the BHR (as cast) and the C+ came away as having better wear properties.

My stomach turns at some of the stuff that manufacturers, reps and doctors say about medical devices and drugs.  i.e.  "the ASR was heat treated and failed, thus heat treating is bad". Never-mind that the C+ is heat treated and  is an outstanding device with a great track record.

There is so much money, egos, conjecture and 'opinions' involved that its tough to wade through the marketing and get to the facts. 
40yo at the time of my 2/16/2011 left hip uncemented Biomet resurface with Tri Spike Acetabular cup by Gross

Dannywayoflife

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Re: Ions Measured And Normal
« Reply #9 on: May 09, 2011, 05:25:31 PM »
In the recent video of Dr. Brooks, he says the Birmingham is harder because it is not heat treated. Well I got the C+ which is heat treated, and it looks as though it is working for me.

DeSmet did a nice writeup comparing the wear rates and blood metal levels between the C+ (heat treated) and the BHR (as cast) and the C+ came away as having better wear properties.

My stomach turns at some of the stuff that manufacturers, reps and doctors say about medical devices and drugs.  i.e.  "the ASR was heat treated and failed, thus heat treating is bad". Never-mind that the C+ is heat treated and  is an outstanding device with a great Mtrack record.

Couldn't agree more!

There is so much money, egos, conjecture and 'opinions' involved that its tough to wade through the marketing and get to the facts. 
Train hard fight easy
LBHR 10/11/2011 Mr Ronan Treacy Birmingham England
60mm cup 54mm head
Rbhr 54mm head 60mm cup 12/02/15 Ronan Treacy ROH Birmingham England
;)

DGossack

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Re: Ions Measured And Normal
« Reply #10 on: May 09, 2011, 07:15:58 PM »
That is a great idea to get the metal ion levels before surgery.  Then I can establish a baseline to compare after surgery.  Thanks for the advice.

Dan
LBHR, Dr. Pritchett, 8/1/2011
fullmetalhip.wordpress.com

Lopsided

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Re: Ions Measured And Normal
« Reply #11 on: May 10, 2011, 12:14:44 AM »
As an aside, Dannywayoflife, DGossack, and myself, we are all interested in our ion levels, and ...

... we are all called Dan. Is this a trend?



Proud To Be Dr. De Smet's First Uncemented Conserve Plus, Left, August 2010

stano

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Re: Ions Measured And Normal
« Reply #12 on: May 10, 2011, 12:25:14 AM »
My results just came back at 1.0 and 1.2, Dr Gross said that is good for the BHR.
 
stano

FlbrkMike

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Re: Ions Measured And Normal
« Reply #13 on: May 10, 2011, 02:13:14 AM »
As an aside, Dannywayoflife, DGossack, and myself, we are all interested in our ion levels, and ...

... we are all called Dan. Is this a trend?



To me it seems like a riddle wrapped in a mystery inside an enigma.

 :o
Dr. Ball
56 years old
LBHR 2/11/11
RBHR 3/11/11

DGossack

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Re: Ions Measured And Normal
« Reply #14 on: May 10, 2011, 05:05:00 AM »
There are some who call me ...Tim Dan?  LOL

I guess how will see how many MP fans are on here.

Dan
LBHR, Dr. Pritchett, 8/1/2011
fullmetalhip.wordpress.com

bdoughty

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Re: Ions Measured And Normal
« Reply #15 on: May 10, 2011, 03:49:24 PM »
Greetings, Dan the Enchanter.

FlbrkMike

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Re: Ions Measured And Normal
« Reply #16 on: May 10, 2011, 05:22:02 PM »
Well, that's no ordinary ion level.
Dr. Ball
56 years old
LBHR 2/11/11
RBHR 3/11/11

 

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