According to your description, your burns are very serious, which has led to deformity of your feet, limited squatting of your legs, and it is extremely difficult to do plastic surgery.

Like your scar, if you want plastic surgery, you may need to do comprehensive treatment such as skin grafting and scar resection.

If possible, I can attach a picture of your lower limb burn, so that I can make the most correct plan for your actual situation. If you are not clear, you can ask me by name.