Younger individuals needing knee replacement are more likely to require revision surgery.

“the younger patient is the more active they'll be and the more likely they will loosen at an earlier age and so for the people who need the knee replacements the longest people in their 40s and 50s well the shortest life suite if an 8 year old you'll tell them just to set expectations you're probably going to need two of these in your lifetime he's gonna need a revision at some point in the lifetime but it's a significant difference in longevity for the fifth year old getting a knee replacement than the 65 year old”