from 158 to 170 cm (5.2ft - 5.7ft)

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Hi people,

i am a 158cm tall male and wanna reach at least 170cm within 2 surgeries.
Do you think it's ok or just a stupid idea.

proportions:
overall height = 158cm
outer leg length = 85cm
inner leg length = 69cm
from bottom to shoulder = 131cm
arm span = 160cm
sitting height = 85 - 90cm

torso seems slightly longer than legs

Edit Post

What do you think are the best lengthening-proportions to keep biomechanics, 5cm to tibia and 7cm femur or more like 50/50. Will I suffer from a decrease in athletic abilities?
And which one should i first lengthen tibia or femur?