External only is very bad idea. Because you have to stay with the fixator a lot of time. For 6cm more than 1 year.
I had my surgery my first leg in 18th on february and the second in july. And in 8 on november i started to study one course.
Nobody suspect nothing.
That's not true.
I lengthened 7.5 cm and my bones were consolidated completely 10 months after although I kept the monorails for 1 month more for sure.
Also, tibia LL always looks better than femur LL and the feet looks longer while with longer femurs you look bulkier but not so tall compared to tibias.
Finally, breaking 2 bones means nothing. Fibula cut is very easy and if it is fixated with a screw to tibia it won't cause any problem at all. Even a non alignment in fibula (which can be fixed of course) still won't cause any real problem, all doctors agree to that.
So breaking 2 bones instead of one really isn't of any importance.
@onemorefoot, I think the surgery lasts about 3-4 hours for Ilizarov. I had monorails and my doctor needed about 2.5 hours, Ilizarov needs more time.
But it is a less risky surgery than drilling through bones. The only risk is infection but it can easily prevented with antibiotics because it is on the skin near the pins.
In internals infection is rare but if it happens it can lead to infection inside of the bone which is very dangerous.
So for many reasons external tibias is the best solution for long term results.
And I think that be less comfortable for up to a year is less important than multiple surgeries, maybe more long term effects and of course plenty of money more, as internal femurs are ridiculousky expensive.
You can do external LL with a respectable doctor with about 20k euros while for internals you need at least twice these money.
So external tibias has also a much better vfm .