HR and Acetabulum Bone Preservation

[michaelinwa]

Hi All:

I've been monitoring the site for a while, since I either have an HR or THR in my future (I have OA, and I am 51).

I wonder if someone can comment on the issue that has been raised, rightly or not, that although HR preserves bone on the femur (no doubt about that), it actually takes off more bone from the acetabulum (the "cup" side, just in case I'm getting my terms wrong; you know what I mean).

Do we know with any certainty if that acetabulum criticism is true or not? I've had two very reputable THR surgeons say HR does take more bone of that side. I know at least one reputable HR surgeon disagrees. I have a feeling medical bias is involved, but I wonder what we know about this.

Thanks for your thoughts.

Mike

[Dannywayoflife]

Mike I think it actually depends on the device used. I'm pretty sure unread something along the lines of.
A small head thr will save bone in the actabulum. But then you have all the issues relating to a small head thr eg higher wear, dislocation, more restrictions etc

Then you have the newer large head thr's I'm sure I read they actually remove more bone than a hr. but then you have less issues associated with a small ball thr.

Then you have HR. The beauty of the hr is that not only does it conserve bone it transfers load far better which after all is one of the biggest reasons why thr's fail. If you look at Derrick McMinns video about the bhr vs cement less hr then he shows under a scanning electron microscope the bhr cup(which is unique) and also how bone grows into it. And after seeing that you can understand that if the surgeon does his job and the patient follows instructions it really will probably never move from there!

My advice go to the best hr surgeon you can who has preferably done many thousands with excellent results and you will have the best result possible. At the end of the day a hr can restore your full function which a thr cannot! The top surgeons have a far higher retention even at 16+ years with unrestricted activity

Danny

[Pat Walter]

Hi
For some reason this is a misconception that many THR surgeons say about hip resurfacing. It is not true according to Dr. Bose and other top hip resurfacing surgeons.  There is no need to set an acetabular cup any deeper into the hip than the same cup for a THR.  This was reported by Dr. Kurtz and I have 3 responses to his wrong information by Dr. Bose, Su and Rogerson.

Dr. Bose specifically addresses the depth of the acetaublar cup saying hip resurfacing does not set the cup deeper.

http://www.surfacehippy.info/bosevskurtz.php

http://www.surfacehippy.info/suvskurtz.php

http://www.surfacehippy.info/rogersonvskurtz.php

another article by Dr. Bose and Dr. Rubinstein

http://www.surfacehippy.info/faqacetabularboneloss.php

There have been a lot of untruths posted about hip resurfacing.  It is best to listen to only the top hip resurfacing surgeons and read their information.  THR surgeons often don't like hip resurfacing because they are not able to do the diffiuclt surgery, so they just bad mouth it.

The top hip resurfacing surgeons to both THRs and resurfacings.  They can tell you the differences and will recommend what is best for you in their opinon.  THR surgeons will just recommend THRs since they know little about hip resurfacing.

I hope that helps.  I have a lot of doctor chat transcripts here  http://www.surfacehippy.info/doctorchats.php

and individual personal video interviews.  I often ask those basic questions during an interview so patients can hear true information about hip resurfacing.  http://www.surfacehippy.info/shvideos/doctor-interviews-Patricia-Walter.php

Pat

[Dannywayoflife]

Where's the like button when you need it?  very well put pat!

Danny