Cosmetic limb lengthening surgery and the following distraction process is and must be done within safe and acceptable limits. These maximum limits are 7–8 cm for femur, and 6–7 cm for tibia. If a patient doesn’t have already too thin and/or unusually long legs, then this amount of leg length increase is not likely to cause body disproportion. Up to now, none of our limb lengthening patients have had a complaint in this regard.