Hi doublerocket
Sorry to hear about your problems. I had a botched HR by an Argentine surgeon that was revised by De Smet to his ceramic on ceramic THR almost three years ago. It's working quite well: I regularly hike, jog a bit and am an active (in fact, sort of a fanatic) rock climber. I don't know if you know anything about rock climbing, but yesterday I redpointed a 5.11d (French 7a) and today I will probably boulder. I also have a nine month old HR from De Smet and my hip is working, well, like new. That's some real bad luck about your problems, but I would personally continue to trust De Smet (anyways, he has done wonders for my problems) and I can testify that his THR system can work quite well (at least it has, so far, for me). In my case, my surgeries with him have given me the opportunity to return to the sport that was (and is again) my passion.
If you want to see some pictures about my climbing with the THR, check out my blog link in the mountaineering and climbing thread.
PS: When I got my hip revised, there was another American, a younger guy, who lived in Spain, who was also having surgery with De Smet. As I recall, he had damaged his hip in a car accident, and was not a candidate for HR. At any rate, he also received De Smet's THR system. The guy sent me a few e-mails after the surgery to see how I was doing and to tell me how he was doing (a mail at six months, one year and two years). He was very happy with how his hip turned out. He was not a big sports enthusiast or anything like that, but he was a healthy young guy (maybe ten years younger than me) who had limped ever since his accident. At six months post-op he told me that the limp and pain from the accident were completely gone. At one year post-op he told me he could touch his knee to his forehead and he felt like he was back to normal. At two years post-op he told me ha had started to play recreational tennis and that he was real happy with how the surgery worked out for him.