Clinical outcomes in high flexion total knee arthroplasty were not superior to standard posterior stabilized total knee arthroplasty. A multicenter, prospective, randomized study

278 patients undergoing total knee arthroplasty (TKA) were randomized to recieve either a high flexion total knee system (NexGen LPS Flex) or the conventional NexGen LPS total knee system to compare clinical, functional and radiological outcomes between the two prostheses. Results indicated that there was no significant difference between groups with respect to Knee Society Scores, Hospital for Special Surgery scores, quality of life, range of motion, and radiographic outcomes. Furthermore, the complication rate was similarly low in both groups.