Don, when it comes to icing your knees ask the doc about "The Ice Man" it's a pump that circulates cold water from the tank thru the wrapping on your knee. You can load it with ice or frozen water bottles to chill the water. Linda got one when she had her shoulder done, I used it for a sore lower back. It's cold, but not frozen like ice, way more comfortable. Covered by our insurance.
Good luck, keep your eye on the ball and you'll get ready for the next step.