No difference in clinical outcomes after total knee arthroplasty between patellar eversion and non-eversion

5 randomized controlled trials comparing patellar eversion and non-eversion in patients undergoing primary total knee arthroplasty were included. The purpose of this study was to determine if patellar eversion was associated with negative clinical outcomes when compared to patellar non-eversion. Quantitatively pooled results displayed no significant difference between groups in terms of pain assessed with a visual analogue scale, and complications. Qualitative assessments displayed no significant differences between groups in hip function, quality of life, quadriceps strength, patellar height, and radiographic alignment.