Re: SROM-THR lasts a life time: Jeff

[Guest guest]

....The

> alignment of the artificial piece that replaces the femoral head in

> a THR will hit the sides of the cup when the joint is radically

bent

> which causes a slightly less range of motion to be available for the

> person that has the THR versus the BHR. I believe he was saying

> approx. 135 degrees versus 180 degrees range of motion.

>

> I don't want to be passing along incorrect data...

Jeff:

You are absolutely wrong. Properly installed, a THR will give the

same range of motion of a properly installed surf job. In fact, in

some cases a THR will give better ROM because a surf job does not

have the adjustments that a THR has.

This is straight from Dr. Schmalzried of JRI in LA. In fact, a

friend of mine is a serious sierra rock climber and Dr. S installed

SROM m/m THR's (he did not qualify for resurfing)in both his hips a

couple years ago and he can put his feet behind his head and can

contort his legs better than ever in his life.

I also recall Bob reporting that his hip functioned better with a big

ball THR than his surf job that had previously failed... I believe he

had Dr. S do the installs as well.

The greatest limiting factors in ROM is pre-existing soft tissue

condition and the skill of your surgeon.

bilat C+ July 02 Dr. S

[Guest guest]

:

Not entirely accurate.

A THR with the same size femoral ball as a BHR will yield a similar

range of motion but an " old style " THR with a 24 to 26 mm femoral head

will not give you anything close to the same range of motion of a BHR

(which will have a femoral head size of around 50 mm).

> ...The

> > alignment of the artificial piece that replaces the femoral head in

> > a THR will hit the sides of the cup when the joint is radically

> bent

> > which causes a slightly less range of motion to be available for the

> > person that has the THR versus the BHR. I believe he was saying

> > approx. 135 degrees versus 180 degrees range of motion.

> >

> > I don't want to be passing along incorrect data...

>

> Jeff:

>

> You are absolutely wrong. Properly installed, a THR will give the

> same range of motion of a properly installed surf job. In fact, in

> some cases a THR will give better ROM because a surf job does not

> have the adjustments that a THR has.

>

> This is straight from Dr. Schmalzried of JRI in LA. In fact, a

> friend of mine is a serious sierra rock climber and Dr. S installed

> SROM m/m THR's (he did not qualify for resurfing)in both his hips a

> couple years ago and he can put his feet behind his head and can

> contort his legs better than ever in his life.

>

> I also recall Bob reporting that his hip functioned better with a big

> ball THR than his surf job that had previously failed... I believe he

> had Dr. S do the installs as well.

>

> The greatest limiting factors in ROM is pre-existing soft tissue

> condition and the skill of your surgeon.

>

> bilat C+ July 02 Dr. S