Hospital for Special Surgery Mar 11 2025 At this year's American Academy of Orthopedic Surgeons (AAOS) annual meeting, investigators at Hospital for Special Surgery (HSS) presented several significant studies, with three focused on new ways to help patients recover faster after total knee arthroplasty (TKA), also known as knee replacement surgery. What follows are highlights from these studies: Limiting use of tourniquets during knee replacement surgery improves patient outcomes Tourniquets