6cm Tibia vs Femur

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Dear Community,

I am planning to do 6cm CLL with internal Betzbone. I am not sure if I should decide for tibia or femur. I do not care very much about aesthetic proportions, but I care about athletic recovery (1) and safety (2). Most important is that lengthening can be done with as few side-effects and health issues as possible.

I would be very happy if you could share your thoughts.

Thanks,
Peter

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Thanks for the reply!
I have perfect 1:1 fibia femur proportions.
But as said, I decide based on safety. (Risks, complications, long term effects, etc.)

Thanksa

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Usain Bolt has his Tibia longer by 6 cm compared to his femur...
Ehy is it betterto have 0:8 ratio?

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Should it not be more easy to lenthen tibia, and to recover from tibia lengthening due to less muscles compared to femur?