Heat treatment of the ears of knotted sutures markedly enhances knot securi
ty. Using coated polyester sutures commonly used in arthroscopic surgery, h
eat treatment of the knot ears allows secure knot construction to be achiev
ed with a two throw granny (1 x 1) or square (1 = 1) knot. A heat source is
being designed for secure knot construction in arthroscopic surgery. (C) 1
999 John Wiley & Sons, Inc.