How much are two procedures of leg-lengthening on the femur and tibia?

There is no standardized cost table to procedures/surgeries. An orthopedic surgeon can consult on your specific situation and give you a detailed breakdown of what needs to be done and when. They can also give you an estimate of costs but it will be general, since this procedure involves a slow process requiring multiple surgeries with anesthesiologists, hospital care, recovery and other factors.