Brain MRI

The goal of this clinical trial is to find out if new Magnetic Resonance Imaging (MRI) computer software will: * help make scans and exams faster * reduce artifacts * make MRI easier to understand * allow technicians to focus more on the participant and less on the scanner Participants will complete one brain MRI imaging session, lasting about 60 minutes.

Knee replacement surgery is a common and effective treatment for pain and mobility loss, yet up to 1 in 5 patients remain dissatisfied after surgery due to ongoing pain or difficulty with daily activities. Currently, clinicians cannot reliably predict which patients will experience these challenges. This study uses MRI scan of the brain to investigate whether specific patterns of brain activity can predict patient satisfaction after total knee arthroplasty (TKA). By comparing brain networks before surgery and afterward, and linking these changes to patient-reported pain and function, we aim to identify brain-based markers that can help predict outcomes, to improve satisfaction after knee replacement surgery.