Wonderful news!! I hope it lasts for you. I have been dealing with rsd for about 20 years and I went into remission about 10 years ago, it came out of remission 3 years ago and it is worse now than before. More area is affected. I like you started out with rsd in knee, it has now spread to both lower extremities, feet, hips and spine. I didn't think it could come back either but there is a good chance it will so please be careful. I wish you all the best!!