I have doubts about lengthening more than 4-6 cm in both the femur or the tibia

Kids and adolescents grow to 7-9 cm a year in 12 months normally
But in this surgery we see a rate that is way higher than the normal growth rate of the normal rate when we were younger is that is the cause of of the problems that LLrsl face in  their tissues and nerves

Does that means that it is better to divide  the process of lengthening by lengthening 4cm in the femur or tibia  and then stop and return after a year  and do a rebreak and then get the other 4 cm
 

The rule of thumb is that lengthening 10-15% of you original bone length is within the "secure" range. The risk rises dramatically from 15-20% and exponentially from everything above that.

Actually this is a very interesting and reasonable question. What is the actual difference between natural bone growth and artificial (i.e. surgical) one?

For me, the way this surgery works is by most part stretching your soft tissues around the elongated bone which is what exactly happens in puberty, I believe.  Can someone confirm or refute this?

Quote from: Cll123 on August 18, 2024, 11:08:12 AMKids and adolescents grow to 7-9 cm a year in 12 months normally
But in this surgery we see a rate that is way higher than the normal growth rate of the normal rate when we were younger is that is the cause of of the problems that LLrsl face in  their tissues and nerves

Does that means that it is better to divide  the process of lengthening by lengthening 4cm in the femur or tibia  and then stop and return after a year  and do a rebreak and then get the other 4 cm

It is always a better idea to rebreak than to lengthen past a safe distance. Theoretically, one could achieve 16 cm in femurs if you do it by parts a year or so apart (because you actually give time for soft tissues to adapt before performing another lengthening, it is way less painful).

Yes but not in the exact same way + in puberty humans don’t get more than 10-12 cm in a year from the whole body tibia + femur + spine ( this is a max rate btw ) an infant is actually about 49 cm in height and growth in girls stop at the age of 14-18 while for males at the age 16-20
( yes some males can grow till early 20s and I know a female that is still growing who is 17 years old she is way taller than me ☠️)

 While In surgery you get 8 cm in 3-5 months wow 😅 just in one bone

16 cm from the femurs only could affect your  biomechanics waaaay more than the 8 cm
Don’t recommend it
U can do 8 cm femurs and wear lifts if you want
Come back when u are ready financially , physically and emotionally
Do the tibia to do it safely and to get the full 8 cm
Divide the lengthening by 4 cm come back in a year and another 4
This will be waaay better for your tissues + higher chance of maximizing the nail
Without getting Achilles tendon problems like ballerina foot .i am not sure if u will need to stay in the hospital for 3 days when u do a rebreak only tbh but I guess that it will be a day

This is my point of view

If u searched the rule states also that for every cm you lengthen a 1-1.5 months   to walk
So doing 4cm on the tibia will take around 5 months to be able to walk

For femur around 3.5-4

With precise max and following this strategy I guess more people will do this in their vacations
 And will pretty much solve the issue with the time it needs to be out
Dividing that time between 2years can be beneficial rather than doing it in on go
Not to mention that it will be better for your tissues + lowering the chances of any complication by a good chance