Friend of mine has had a knee replacement and surfs regularly on a mal and SUP. She reckons that she is wearing the pad out in-between the joint fairly quickly, but from what she understands this is a fairly simple retread op.

Her only regret is that she didnt learn to kite pre-op as now she is a little nervous about thrashing herself too much in the early days on learning on a kite.

Aparently you are only good for have the knee replaced twice. After that....

All the best with your op!

My mum got her hip replaced & its got ceramic on the wearing parts & it comes with a lifetime guarantee they reckon it only wears out at less than a micron a year but I'm sure its the top of the market. Maybe you only get what you pay for . But six weeks later she was travelling again & is now back on the endless winter circuit skiing again.