Limb Lengthening Forum
Limb Lengthening Surgery => Limb Lengthening Discussions => Topic started by: SpeedDialer on November 03, 2022, 09:03:36 AM
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I can't remember where Dr. Assayag posted it, but I think he said that they were finding that stryde tibias might have had greater rate of non-union than precise 2.2 tibia (or at least greater rates of non-union than expected? Did I misremember this/am I saying it wrong? Don't want to misquote)
And I am trying to find out the cause (does it have to with weight bearing itself? Or something else entirely?)
The reason I'm trying to find out is this:
I'm going to do internal tibias with Dr. Giotikas eventually I think
Let's say the next generation of precise comes out (?Precise 4 someone on this forum called it because they considered stryde to be precise 3) and let's assume it is weight bearing. Then, there is a decision after the next generation of precise comes out- do you go with precise 2.2 which has a longer track record of success or do you go with precise 4 (which will probably have better weight bearing) when it comes out?
Part of me is thinking it would be great if I could just lose alot of weight + I might have large enough diameter tibias to fit in the biggest precise 2.2 nail (rumor I heard from a current precise patient that the biggest precise tibia nail can support 68 kg) and then problem solved
Its not clear to me because of the conflicting thoughts:
"well we know precise 2.2 works great, why take a risk on a new device? Look what happened last time with the stryde corrosion issues (though to be fair the corrosion only caused pain in a small percentage of patients Dr. Paley said I think) "
versus
"screw being stuck in a wheelchair, its miserable"
So that's why I am trying to find out the specific reasons why stryde seemed to have more nonunions for tibias than expected. It probably has nothing to do with corrosion so I am assuming there is some other reason
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Corrosion and Osteolysis caused problems for a small portion of femurs LL and caused problems for the vast majority of Tibia patients according to the results published in a research paper I read on stryde. The paper did not have an explanation of why. I don't think they know beyond educated guesses why tibias did so much worse with stryde than femurs. Just googling around a bit I found a couple stryde research papers a few months ago. I'm sure you can find them if it's of interest to you.
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Corrosion and Osteolysis caused problems for a small portion of femurs LL and caused problems for the vast majority of Tibia patients according to the results published in a research paper I read on stryde. The paper did not have an explanation of why. I don't think they know beyond educated guesses why tibias did so much worse with stryde than femurs. Just googling around a bit I found a couple stryde research papers a few months ago. I'm sure you can find them if it's of interest to you.
Oh damn, thanks for the warning, I'm a bit disturbed that we don't know the cause of the osteolysis for tibia patients. Maybe I'll just stick to precise 2.2 even if they release a new weight bearing precise nail someday... why risk it and be a guinea pig for a new device when we already have a tried and trued device for tibias in the (non-weight-bearing I know) precise 2.2?
The only other options for weight bearing tibias internal are guichet's tibia nail (only used by guichet as far as I can tell, in Athens they only use guichet's femur nail) and betzbone 2.0, but I think they are alot more expensive than doing precise 2.2 in Athens, I could be wrong though
I mean I think I just should just maybe try to get to below 68 kg and then unrelated to that hopefully I have big enough tibia nails to get the biggest precise 2.2 nail which can support that weight
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"Corrosion and Osteolysis caused problems for a small portion of femurs LL and caused problems for the vast majority of Tibia patients according to the results published in a research paper I read on stryde."
Anyone know where this paper is or who the author is?