Is it possible to have two surgeries on the femur, one year apart?

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Quote from: Body Builder on August 28, 2024, 03:26:53 PMIf you understand what is biomechanics then you could understand too why it is impossible to lengthen that much in one segment and still be functional.

I am also studying biomechanics at the moment, and besides knock knees or some other valgus/varus deviation, I don't see any evidence why that couldn't work. I am only talking about the bone part however, it's probably a different story with the tissues as I wrote in my comment.

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Ok to point that out in puberty both the tibia and the femur increase in height and they do increase in height in a much lower rate than u do in the surgery . I know that a bone can be lengthened to what ever we want for ex if we isolated a bone in a lab supplying the bone with needed stuff (btw they did actually  grow a bone in a lab before and I guess not sure that in future having artificial growth plate cells and using them in adult humans could be be achieved from a research like that ) and increasing the height of the the bone by surgery it will increase with no issues , but our body works as a system your bones aren’t alone in your body they are surrounded with nerves , muscles , ligaments and tendons + your knee

In the surgery we increase height by 8 cm in 90 days which is way faster than the normal rate of growth in teens not only that but also we gain the whole 8 cm thing in just one bone

So already doing the surgery it will be already faster than where your bones were growing in your teens and also the tissues as they grow
But according to doctors the average limit to grow a bone by surgery is a 1 mm in femur and .75 in tibia which in my view is still fast for the tissues if lengthening for more than 5 cm . Unfortunately we can’t lengthen in a slower rate because early consolidation will occur it occurs because the bone regenerates faster than the tissues around it.

As for the biomechanics between the femur ,knee and tibia
Lengthening more than 8 cm in my opinion in the femur without lengthening the tibia
Could have a negative effect on it my opinion tho regarding this part isn’t supported by evidence
But some doctors say that even lengthening the femur by 8 cm and leaving the tibia isn’t good for biomechanics I say yes of course your biomechanics will change but change doesn’t mean bad
But for sure after a certain limit it will be bad.

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For each centimeter of elongation in soft tissues, the main component is new growth but not all, a percentage is simply stretched tissue and would remain than way for many years or even a lifetime, and this percentage increases exponentially.

That is why, among other things, complications and recovery increase exponentially the more one lengthen, 16cm (in 1 segment) can only be done safely in people with dwarfism, since their tissues are compressed initially

and as others have told you, the biomechanical component would be compromised

no respectable doctor would allow you to do this plan, imo

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Do you how fast the bones lengthen naturally during puberty? what's the minimum rate we can lengthen the femurs using an internal method and avoiding consolidation?

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The curve for growth is different for everyone until you finish puberty  ; I’m growth starts ti slow down then stops when does it stop its is different for each person not not a big difference for the Average human male (17-18)

Now how much u grow I guess that it is impossible that your body in puberty will increase 8 cm in just one bone and in 3 months
U may get the 8 cm in a spurt around the 3-5 months
But from your tibia , femur , and spine

As for the minimum rate to avoid consolidation
I’ll say that I don’t know 😅
It will depend on many factors
1-The total target height increase
,4 is different than 6 than 8
2- the age of the person
3- how fast is your consolidation can happen ( from a genetic standpoint)
4-all these things are factors that’s why I guess when I’ll lengthen in the beginning the doctors will not start away with a full 1mm
Many starts at .75 or maybe less the first few days
Doing so  a doctor can  have an indication about the lengthening plan
Which is most of the time 1 mm
Until the target
If complications happen before the target height
The doctor will be like
Stop now
Either stop now means to take a break for few days and continue
Or stopping at all

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Quote from: JON SNOW on August 31, 2024, 04:16:02 AMFor each centimeter of elongation in soft tissues, the main component is new growth but not all, a percentage is simply stretched tissue and would remain than way for many years or even a lifetime, and this percentage increases exponentially.

That is why, among other things, complications and recovery increase exponentially the more one lengthen, 16cm (in 1 segment) can only be done safely in people with dwarfism, since their tissues are compressed initially

and as others have told you, the biomechanical component would be compromised

no respectable doctor would allow you to do this plan, imo

I highly doubt that the tissues don't adapt along the way, after some point the strain becomes unbearable so they forcefully extends to adapt themselves better (or you can have a surgery that forcefully releases tension). But note that I haven't studied this yet so can't back it up, just my opinion.

There are people who lengthened 12 cm in a single surgery on this forum, so naturally this implies that if you make this process even easier (obviously, lengthening the same part two times is safer than lengthening in one go), you could gain even more on a single bone. So no, I don't believe this works only for people with dwarfism.

Speaking for biomechanics, I don't believe it to be a great deal (who cares about how fast you walk or how much you can bend your knees, anyway?)

Third, I emailed many doctors and the absolute majority are willing to do surgery on the same bone, furthermore doctors don't control how much you lengthen, after the surgery they can only give you recommendations.

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Even if you are right doing 12 cm on the femur alone is a bad choice
Even if u divide it by 3 lengthening periods

For real and doing more than 8 pm the femur will be really hard perhaps impossible
Of course some people do it but it is a small percentage
And most have issues

I want to tell you that many cll patients can’t tolerate reaching to 7 on femurs
🙂 maybe even 6.5 on one go


What I mean that u won’t be able to do 12 cm in one go
Or even more  than 9

If u divide the lengthening your body proportions then will be really off

Getting 12 cm on femurs only in my opinion is proportionally worse than doing
8 femur and 8 tibia
Which is 16
Let alone doing 16 in the femur only how off will it be

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https://limblengthening.org/lengthening-options/

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Quote from: Cll123 on September 04, 2024, 08:29:54 AMEven if you are right doing 12 cm on the femur alone is a bad choice
Even if u divide it by 3 lengthening periods

For real and doing more than 8 pm the femur will be really hard perhaps impossible
Of course some people do it but it is a small percentage
And most have issues

I want to tell you that many cll patients can’t tolerate reaching to 7 on femurs
🙂 maybe even 6.5 on one go


What I mean that u won’t be able to do 12 cm in one go
Or even more  than 9

If u divide the lengthening your body proportions then will be really off

Getting 12 cm on femurs only in my opinion is proportionally worse than doing
8 femur and 8 tibia
Which is 16
Let alone doing 16 in the femur only how off will it be

What do you mean by most can't "tolerate" it? How do you define tolerance? Is it the pain? Is it the rate of complications (what kind of them, do you know that most of these are fairly easily manageable)? What you are doing here is just using emotional language, not scientific one. Theoretically, it is not impossible and you probably know it, I am just asking you to define precisely what you mean by that.

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Ask a doctor by not tolerate it could be muscle soreness and tissue problems
According to Cyborg livestreams with doctor Robbins 
The surgery has risks and they increase as you lengthen that’s why they have limits
If your to do more than 10 cm in one go with the femur go ahead and try by yourself
Probably you will be through many complications the least of them is getting a nerve issue where the skin nerve receptors don’t work if u continued you lengthening when getting it you may loose the sense in that area for your life time talking here about reaching for the 8 cm not 10 or more
This area is a small area so even if u lost sensation u won’t be really affected
But this is a minor complication

U can get problems with motor nerves
Tissues
And many many more

Your body isnt  made from bones only u got other stuff running there
And to be sure u can ask a creditable surgeon that u want to do 16 cm on your femur
And check what will he say to u
Not to mention that precice does only 8 or 8.3

So doing more than that means that u will be doing Lon
Or lizarov
 And both are way painful speaking (logically)
More screws into your femur