I've been using the ebice machine on my knees since the first dressing change in the hospital. A friend loaned me his machine (same surgery two years ago) and I want to believe he paid under a hundred bucks for it. I would call that a real bargain...this machine has been invaluable to me. It has done a fantastic job of keeping my swelling down and assisting in pain management. The set-up was simple, it's easy to get in and out of for restroom runs, and best of all it provides immediate relief. Just make sure you have a dressing between the cold pads and your skin; it gets very cold and one needs to be careful about frostbite. I've spent some cash on ice, maybe $5 a day as I don't have an ice machine on my refrigerator, but it's been well worth it. I'm sure there are other viable options out there so good luck with your search and your surgery. Ron