This study looks at the safety and effectiveness of a medical device called the **Canary canturio^TM te Tibial Extension** used in knee surgery. The study will follow patients who have had knee replacement surgery, to see if this device is safe and works well. Two groups are being compared: one with the Canary canturio^TM te device and another with a different device.

Key Points:

• The study will last for 5 years with multiple check-ups.
• You need to be 18 or older and eligible for knee surgery.
• Participants need a computer with internet for data collection.

Some medical terms to know: - **Knee Arthroplasty**: This means a knee replacement surgery. - **Aseptic Loosening**: When the joint becomes loose without infection. - **Radiologic Changes**: Changes seen in x-rays or other scans.

If you agree to join, you will help doctors understand how well this device works, but you should consider any risks involved, like the possibility of needing more surgery if problems occur.