Indeed, I understand your perspective. However, one might question whether getting a haircut, a tattoo, or any sort of surgery is a disrespect to God.
In my view, if you undergo limb lengthening surgery to enhance your life, I perceive no issues with that. Particularly as it neither detracts from others nor poses harm to oneself. It may also alleviate depression and contribute to a greater enjoyment of life. Truly, we ought to be thankful that such procedures are possible.