August 17, 2010 8:18 am Device Offers Alternative to Knee Replacement Surgery Doctors and patients say they may have found a way to ease arthritis pain in knees without drugs or surgery. US & World Videos 3:15 Céline Dion on how her 3 sons helped her amid Stiff Person Syndrome diagnosis 1:29 Austin Butler says Kaia Gerber picked his outfit for ‘Bikeriders' premiere 1:00 Carrie Underwood and family ‘unharmed' after fire at residence 2:08 Henry Cavill asks for fatherhood tips ahead of welcoming first child 1:38 Gordon Ramsay reveals massive bruise after bike accident