You have exactly the same thing that i had, hallux rigidus stage 4, completely frozen joint. I am sorry, it is really painful! I had the fusion done, as I was told that the implant would most likely wear out in a couple of years and need additional surgery, and the other procedure you mentioned just cleans out the joint, and as I understand it would do nothing to stop the pain due to the arthritis and lack of cartlidge left in the joint. Good luck, and I hope it all goes well for you too. I too am very active, and am back playing a lot of tennis, pain free.