Persona OsseoTi Keel Compatibility Study (Total Knee Arthroplasty)

This study is evaluating a specific knee implant component — the Persona OsseoTi Keel — used in total knee replacement surgery. Researchers want to confirm that this implant works safely and effectively across a wide range of patients, including those having their first or revision knee replacement. **You may be eligible if...** - You are an adult of legal age with fully developed bones - Your doctor has determined you need a total knee replacement (or revision of a prior knee replacement) - You are willing to attend follow-up appointments as required by the study - You are able to provide written consent **You may NOT be eligible if...** - You are currently participating in another surgical or pain management study - You are pregnant - You have a mental or neurological condition that prevents you from following post-operative instructions - You are institutionalized, have significant drug or alcohol dependence, or cannot understand study requirements Talk to your doctor to see if this trial is right for you.