Abstract
With the increase of the aging population in our country, it is foreseeable that the number of elderly patients who choose to undergo total knee arthroplasty (TKA) to improve their quality of life will increase. Osteoarthritis patients who need TKA are also high-risk groups of osteoporosis, and orthopedic surgeons will face more and more osteoporosis patients undergoing TKA. We need to consider several important clinical issues about osteoporosis patients undergoing TKA: bone quality assessment, the relationship between osteoporosis and knee OA, clinical outcomes after TKA of patients with osteoporosis，the relationship between bone loss and function after TKA, the change of bone density after TKA, and drug intervention for bone density loss after TKA. This article reviews and analyzes the problems that osteoporosis patients may encounter when undergoing TKA．
