If 11-12 cm is still considered safe zone then those are some unreal gains to be had. Imagining if I'm 190 cm I could easily get to 2 meters. Those magic 2 meters outlier height. So much HOPE! I'm willing to shell out 200k$ or more to get this done, willing to endure pain, willing to go through therapy only if I know I will be able to regain 90% of mobility after a few years. Losing more than 10% of athletic ability, mobility would be awful though.
Hi TruthBomber
Both segments can be lengthened at the same time but surgeries should be done at least 3 weeks apart. But this kind of surgery can be done only by top doctor like Paley. I don't know besides Paley who else is capable enough to offer this option. Even with Paley, you can achieve about 10cm (11cm could be the max, I think) at one time. You CANNOT go to 5 and 8 cm for tibia and femur, if you do both simultaneously. You can go back to rebreak your bones to lengthen 16 cm in total (8 cm for each).
Regarding athletic ability, I think you have unrealistic view of CLL. You will lose more than 10% of athletic ability even with one segment lengthening even after a few years later. Perhaps you may be able to recover 100% after many years with dedicated workout, only if you lengthen a minor increase like 3-4 cm, which I am not so sure about.
So don't expect or think CLL is a sort of magic that makes you be tall without losing anything all of sudden.