Ms. (Dr.) Samantha Tross
Consultant Orthopaedic and Trauma Surgeon
First Black Female Orthopaedic Consultant in the UK
One of the most common questions patients ask is: "How long will my new joint last?" The good news is that modern hip and knee replacements are more durable than ever.
Today's implants are designed using advanced materials that resist wear and mimic natural joint movement. Many last 20–30 years, and some last even longer. Longevity depends on several factors: your activity levels, weight, overall health, and the precision of the surgical procedure.
Robotic-assisted and computer-guided surgery help create optimal alignment, which reduces stress on the implant and improves long-term outcomes. Meanwhile, newer bearing surfaces — such as highly cross-linked polyethylene — significantly reduce wear compared to older designs.
Lifestyle also plays a huge role: staying active, maintaining strength, and avoiding excessive strain all help protect a new joint. Regular check-ups can identify early signs of wear before they cause problems.
The bottom line: most modern replacements offer decades of reliable function, allowing patients to enjoy a more active, comfortable life long after surgery.