Clinical Utility and Gait Analysis of NextAR System AUS

This study looks at whether using augmented reality (AR) navigation technology — specifically the NextAR system — during total knee replacement surgery leads to better outcomes for patients. The NextAR system overlays digital information onto the surgeon's view during the operation, helping them position the new knee joint with greater precision. Researchers are also studying how patients walk (gait analysis) before and after surgery to see whether the technology improves movement. Adults aged 18 and older who have severe knee osteoarthritis bad enough to require a total knee replacement are eligible to join. People who have had previous surgery on the affected knee, have active inflammatory arthritis, significant bone deformity, a BMI over 40, or are pregnant cannot participate. Participants will have their knee replaced using the AR-guided system and will attend follow-up visits to assess their recovery, pain levels, and walking ability. This research matters because knee replacement is one of the most common major surgeries worldwide, and even small improvements in implant positioning can lead to less pain, better movement, and longer-lasting results for millions of patients.