system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What happens to the leg muscles during leg lengthening surgery & recovery? Do they stretch permanently? Is muscle taken from somewhere else?
gpt
When bones are lengthened, the stretch on the tissues causes them to grow and lengthen. We know that his happens normally in growing kids as well. Only the bones themselves are lengthened in the surgeries.