“… Abbreviations: AAHKS, Association of Hip and Knee Surgeons; AAOS, American Academy of Orthopedic Surgeons; ACR, American College of Rheumatology; ASA, aspirin; CDC, Centers for Disease Control; CHEST, The American College of Chest Physicians; DOAC, direct oral anticoagulant (eg, apixaban, dabigatran, and rivaroxaban); LMWH, low-molecular-weight heparin (eg, enoxaparin); NICE, National Institute for Health and Care Excellence; Ortho, orthopedic operations; SSI, surgical site infection; THA, total hip arthroplasty; TKA, total knee arthroplasty; TNF, tumor necrosis factor; UFH, unfractionated heparin; VKA, vitamin K antagonist (eg, warfarin); WHO, World Health Organization; VTE, venous thromboembolism. a Adapted from American Academy of Orthopedic Surgeons, 9 American College of Rheumatology/American Association of Hip and Knee Surgeons, 10 American College of Surgeons and Surgical Infection Society, 8 Centers for Disease Control and Prevention surgical site infection, 11 CHEST, 12 and National Institute for Health and Care Excellence. 13 b Year includes published date or date guidelines were last updated, whichever is later.…”