M2a Magnum Hip System

[shari1901]

Has anyone heard of the M2a Magnum Hip System? I interviewed a physician (was at one time an aeronautics engineer) that is using this newer technology. It's metal on metal, cementless, is designed for greater range of motion and can withstand more active lifestyles. It can last 50 years... so supposedly there would be no need for revision later.

 

[ripanco]

That's a new one on me!
Sounds great if it is as good as claimed. What is so different that it is able to not create osteolysis?

Inquiring minds want to know

Andrea
(Believe in Barbaro)

 

[mlourie]

Has anyone heard of the M2a Magnum Hip System? I interviewed a physician (was at one time an aeronautics engineer) that is using this newer technology. It's metal on metal, cementless, is designed for greater range of motion and can withstand more active lifestyles. It can last 50 years... so supposedly there would be no need for revision later.

Just left my ortho's today and he is recommending same. I'm 50 and metal on metal could last longest and the large head allows best range of motion and least liklihood of dislocation, though he isn't too worried about that. You should look into hip resurfacing, however, as if you are young, it will be able to be done with a large metal to metal ball and less bone loss and smaller shaft implant. this would theoretically help in 30 years or whatever if you need a revision. by the way, I can't find any legit ortho's or manufacturers flatly saying any device will last 50 years. They have no evidence in real cases to support that. They are hoping 30 or more years with these newer metals and ceramics, but no proof.

 

[shari1901]

Thanks for your reply. I'm not sure where you are from but I can't find anyone to talk to me about resurfacing because of the high incidence of necrosis or whatever. (I live in New York on Long Island) All of the top surgeons recommend total hip replacement.

 

[shari1901]

That's a new one on me!
Sounds great if it is as good as claimed. What is so different that it is able to not create osteolysis?

Inquiring minds want to know

Andrea
(Believe in Barbaro)

Andrea, from my understanding, Osteolysis occurs as a result of wearing out of the parts of the hip replacement. Fragments of the hip replacement cause irritation to the tissues and wearing down or weakening of the bone. With the metal on metal there is very little wearing of the actual material and thus you are less likely to develop osteolysis.

 

[shari1901]

That's a new one on me!
Sounds great if it is as good as claimed. What is so different that it is able to not create osteolysis?

Inquiring minds want to know

Andrea
(Believe in Barbaro)

Andrea, from my understanding, osteolysis occurs as a result of wearing out of the parts of the hip replacement. Fragments of the hip replacement cause irritation to the tissues and wearing down or weakening of the bone. With the metal on metal there is very little wearing of the actual material and thus you are less likely to develop osteolysis.

 

[mlourie]

Thanks for your reply. I'm not sure where you are from but I can't find anyone to talk to me about resurfacing because of the high incidence of necrosis or whatever. (I live in New York on Long Island) All of the top surgeons recommend total hip replacement.

I'm from Maine and my doctor will do the resurfacing, but does consider it more "experimental" and claims it has about 4 - 6 times the failure rate. (like 2% instead of like .6%)

I know a woman here who went to S. Carolina for it, with a Doctor who has been doing it for a few years in an FDA approved study. his name is dr thomas gross - columbia SC midlands ortho

I was considering the resurfacing but I have a funky shaped femoral head and my Doctor is recommending against it for me. I will likely go with this Biomet M2A large ball.

good luck!