I am 170cm currently. I'm thinking of lengthening with two surgeries by doing 5cm tibia and 7cm femurs to maintain good proportions and still be taller. Might even up to 8cm femurs and 6tibias if I can handle it.

Either way: how can I go about this? I know femur is internal-only with Stryde for best results. Tibias concern me a bit though, what device is best used to really make sure no knee complications occur? Also, would you say lengthening less on tibia could lessen the rate of complication?