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[Hatch]

Is it possible to add 2-3 cm to the femurs with a trauma nail? I mean just do the surgery and let it heal. Has anyone done that? And is it possible to do twice if I feel 2-3cm was not enough. Of course not immediately but after years. I have understood its possible to stand and walk with trauma nail.

And if possible any idea which surgeons perform that operation? Giotikas? Köhne?

[LIVELIFETHEWAYIWANT]

people are having hard time LL over 1 mm a day , and you want to do 2-3cm in an hour and half ?

[HeightGain]

That's a big gap, good chance it won't consolidate

[Body Builder]

Is it possible to add 2-3 cm to the femurs with a trauma nail? I mean just do the surgery and let it heal. Has anyone done that? And is it possible to do twice if I feel 2-3cm was not enough. Of course not immediately but after years. I have understood its possible to stand and walk with trauma nail.

And if possible any idea which surgeons perform that operation? Giotikas? Köhne?

No it is not possible. It will be for sure a non alignment. And of course no doctor would ever do such a thing.
The max you can at once are 0,5 cm. Even that is risky.

[RealLostSoul]

No it is not possible. It will be for sure a non alignment. And of course no doctor would ever do such a thing.
The max you can at once are 0,5 cm. Even that is risky.

This is just wrong.
I had 0.5cm initial gap and I am on the lower end. Most other people I have spoken to got 0.6-0.8cm initial gap. No one suffers nonunion even remotely. In fact we can‘t ever take a day off because we would risk preconsolidation. One guy even got preconsolidation at 3cm because he slowed down too fast.
The initial gap is to get a head start off the callous considering you start lengthening ~7 days post surgery.   

[SpeedDialer]

delete

[tallmen]

This is just wrong.
I had 0.5cm initial gap and I am on the lower end. Most other people I have spoken to got 0.6-0.8cm initial gap. No one suffers nonunion even remotely. In fact we can‘t ever take a day off because we would risk preconsolidation. One guy even got preconsolidation at 3cm because he slowed down too fast.
The initial gap is to get a head start off the callous considering you start lengthening ~7 days post surgery.

This guy has all the stupid takes on this forum.

[RealLostSoul]

This guy has all the stupid takes on this forum.

Like what?  That I said everyone here got an initial gap and that it is normal and not risky? That‘s not a take or an opinion, that‘s a fking fact. Wtf.

[Ak95]

What means if i want to add 5 cm in femur i just Need to lengthening 4,5 cm?

[Body Builder]

This is just wrong.
I had 0.5cm initial gap and I am on the lower end. Most other people I have spoken to got 0.6-0.8cm initial gap. No one suffers nonunion even remotely. In fact we can‘t ever take a day off because we would risk preconsolidation. One guy even got preconsolidation at 3cm because he slowed down too fast.
The initial gap is to get a head start off the callous considering you start lengthening ~7 days post surgery.

What is wrong? The initial trauma is about 2-3 mm. At max you can take 5-6mm at once and don't risk non union.
If the amounts you mentioned were real and you could take 0.8mm at once with no problem then doctors would fix discrepancies of 1cm with just one surgery and trauma nail. But they don"t because non union is almost sure for 0.8mm and more.

Of course you can have preconsolidation at 3cm if you lengthen too slow.
But you can't lengthen 3cm at once because you will just have a bone gap forever. Thats what the user Hatch asked, how much you can add at once with a TRAUMA nail and not an LL nail. The preconsolidation that can happen is irrelevant because the initial bone gap after surgery is usually about 2-3mm and less than 0,5cm most of the times. 0,7mm will lead to very slow healing and even non union some times. But the problem is not if you can add 0,5 ore 0,7cm at once but 2-3 cm.

Anyways, to answer clearly you can't add 2-3cm at once. The max you can take without risk is 0,5cm and thats to fix only mild discrepancies, not for cosmetic LL. In my case I have about 0.3mm initial gap, I lengthened at a rate of 0,7mm per day as average and never had a problem with preconsolidation.

[RealLostSoul]

What is wrong? The initial trauma is about 2-3 mm. At max you can take 5-6mm at once and don't risk non union.
If the amounts you mentioned were real and you could take 0.8mm at once with no problem then doctors would fix discrepancies of 1cm with just one surgery and trauma nail. But they don"t because non union is almost sure for 0.8mm and more.

Of course you can have preconsolidation at 3cm if you lengthen too slow.
But you can't lengthen 3cm at once because you will just have a bone gap forever. Thats what the user Hatch asked, how much you can add at once with a TRAUMA nail and not an LL nail. The preconsolidation that can happen is irrelevant because the initial bone gap after surgery is usually about 2-3mm and less than 0,5cm most of the times. 0,7mm will lead to very slow healing and even non union some times. But the problem is not if you can add 0,5 ore 0,7cm at once but 2-3 cm.

Anyways, to answer clearly you can't add 2-3cm at once. The max you can take without risk is 0,5cm and thats to fix only mild discrepancies, not for cosmetic LL. In my case I have about 0.3mm initial gap, I lengthened at a rate of 0,7mm per day as average and never had a problem with preconsolidation.

Definitely agree that adding height for cosmetic reasons with trauma nail is not an option. But I think you are talking about tibia, I am talking about femur. For tibia your numbers may be right. But I was told by a local orthopedic surgeon at my home that they fix discrepancies up to 2-3 cm with trauma nail only and no lengthening. By having 2cm initial gap that fuses. I was surprised too but it makes sense given most femur patients I spoke too have 0.5cm initial gap, some even up to 0.8cm

And if you say exactly 0.7+ lead to nonunion, which I believe you for tibia, I think a source to back that up would be nice. 

[Body Builder]

Definitely agree that adding height for cosmetic reasons with trauma nail is not an option. But I think you are talking about tibia, I am talking about femur. For tibia your numbers may be right. But I was told by a local orthopedic surgeon at my home that they fix discrepancies up to 2-3 cm with trauma nail only and no lengthening. By having 2cm initial gap that fuses. I was surprised too but it makes sense given most femur patients I spoke too have 0.5cm initial gap, some even up to 0.8cm

And if you say exactly 0.7+ lead to nonunion, which I believe you for tibia, I think a source to back that up would be nice.

I am sure that 2cm will for sure lead to non union even in femur too.
Maybe 0.7cm are ok for femurs but still 2cm are way too much.
Many LLers had non unions or very slow comsolidation without even big gaps to begin with (like Unicorn) so 2cm I believe is almost.impossible to not lead to a non union.
After all if it was that simple to fix a discrepancy of up to 2cm (which are tha vast majority of discrepancies) once with just a trauma nail then most of the people would have fixed it.
But for more than 1 cm all the cases I knew used some kind of an LL device to fix it.

So I still believe that  gaining2-3 cm with a trauma nail is impossible.
After all the tendons and the ligaments can't stand a so immediate lengthening and would too cause problems.

[RealLostSoul]

I am sure that 2cm will for sure lead to non union even in femur too.
Maybe 0.7cm are ok for femurs but still 2cm are way too much.
Many LLers had non unions or very slow comsolidation without even big gaps to begin with (like Unicorn) so 2cm I believe is almost.impossible to not lead to a non union.
After all if it was that simple to fix a discrepancy of up to 2cm (which are tha vast majority of discrepancies) once with just a trauma nail then most of the people would have fixed it.
But for more than 1 cm all the cases I knew used some kind of an LL device to fix it.

So I still believe that  gaining2-3 cm with a trauma nail is impossible.
After all the tendons and the ligaments can't stand a so immediate lengthening and would too cause problems.

But Unicorn didn’t have issues because of that. She was forcefully lengthened 1.5mm/day, had extra fractures in one leg (perhaps because of Guichet’s osteotomy strategu) because of that this leg was instable which lead to the nail “running away” aka extending uncontrollably of it’s maximum of 10cm.

I think it’s more important to not exceed 1mm/day in femur also for nerve related issues.

Up to almost 1cm discrepancy is asymptomatic in most people, so I don’t think “everyone would have fixed theirs”. Also inserting a trauma nail is already a big invasive surgery tbh.