Thank you for your question. I would suggest that you visit with a physician to be examined for the Coolsculpting treatment. To be able to be treated in this area, the handpiece will have to be able to suction onto the area. You should also know that this would be an "off lable" treatment. Best Wishes.
The FDA has not approved coolsculpting for the knees. Consult with a board certified physician who can provide surgical options and coolsculpting to determine the best treatment plan for you.