No part of the body is immune to the effects of genetics, aging, gravity or weight fluctuations, including your knees. Excess fat, sagging skin or wrinkles – or all of them – can develop on and around the knees, affecting the overall contour of your legs and aging them.
"Liposuction is effective in treating stubborn areas of fat, but your skin can only contract so much with the liposuction procedure. If there's additional skin, then it might require excision with an abdominoplasty."