Pat,
Hey,I feel for ya buddy. That can really hurt.
I had the Roto-Rooter arthoscope thing done on my good knee 3 years ago and will be getting a new knee in my bad leg sometime next year.
I wish ya the best and a quick recoverey. I didn't think the Roto-Rooter was too bad, I only used crutches 1 day then my cane for a while.
But,as usual, results may vary.
Good luck to ya.