How long will my knee replacement last?

People often think joint replacements will only last 10-20 years but the great news is this is a fallacy. All outcome data for modern implanted knee replacements is kept in Australia by the National Joint Replacement Registry. It guides us on how implants for knees, hips and other joints are performing. Current data suggests the likelihood of needing a revision (re-do) operation at 20 years is a little over 8%. This means, reassuringly, it is likely that approximately 92% of knee replacements will be still in place in 20 years.