Contour threads are used in cosmetic/plastic surgery to vertically lift facial tissues that have dropped or become sunken with age. The "ptosis" or descent of facial tissues with aging is a universal phenomenon to which much cosmetic facial surgery is directed. Strands of 2/0 Prolene monofilament thread, with little notches cut into their sides, are placed in the subcutaneous plane under the ptosed facial skin. These are anchored under secure...