Liza Minelli has a knee replacement this year and she tells us about the bad experience.Thanks God she is fine and powerful now. "I’m running around like a wild woman," she said. "You know it’s quite traumatic, having a full knee replacement. But I’m back in dance class every day, plus I go to the trainer. The strength is getting really great, and I’m touring all over the place. My god, I’m everywhere!" I find the knee surgery very demanding,you feel like you have something strange in your feet,right?