Prevalence and Clinical Impact of Sarcopenia in Patients Undergoing Total Joint Arthroplasty: A Systematic Review and a Meta-Analysis

Sarcopenia is a progressive loss of skeletal muscle mass and function. It is associated with adverse outcomes after several orthopaedic procedures. However, its role in total joint arthroplasty(TJA) is not fully explored. Therefore, we wanted to conduct a systematic review and meta-analysis to answer the following questions:(1) What is the prevalence of sarcopenia in patients undergoing TJA?;(2) What factors are associated with the prevalence of sarcopenia in patients undergoing TJA?;What is the impact of sarcopenia on medical outcomes following TJA?;and (4) What is the impact of sarcopenia on surgical outcomes following TJA?