Riddle DL, et al. – The annual prevalence of single and multiple falls was determined in persons with or at risk of knee osteoarthritis (OA) and persons undergoing knee arthroplasty over an 8–year period. In addition, annual fall rates were compared among persons with and without knee arthroplasty to determine whether fall rates were associated with knee arthroplasty. As per findings, the reported fall rates were generally stable and similar over an 8–year period among persons with and without knee arthroplasty. It should not be supposed by clinicians that persons undergoing knee arthroplasty are at greater risk for falls either before or after surgery as compared to persons with or at risk for knee OA.