IS THIS FREE? HOW DO I KNOW IF I HAVE NEUROLOGICAL DAMAGE FROM KNEE SURGERY. MY KNEE AND PART OF MY LEG GET NUMB. I DROP THINGS ALL THE TIME AND AM CLUMBSY AND I WASN T BEFORE. I AM PIGEON TOES ON MY RIGHT FOOT, HAVE CURVITURE OF THE SPINE , AND A BOWED LEG. THESE ARE ALL FROM MY KNEE NOT BEING RIGHT AFTER THE SURGERY FOR OVER 2 YEARS. MY PROBLEMS ALWAYS SEEM TO BE ON MY RIGHT SIDE, WHERE THE SURGERIES HAVE BEEN, JUST HAD A HIP REPLACEMENT ON THAT SIDE AS WELL.