Yes what next i think we all wonder this my grand kids keep calling me bionic now got more metal than steel works hand, feet,knee,and they count hearing aids and glasses as well.Just been in hospital again now found out heart trouble did a bit to much bike riding but did not have to stop and start heart so not too bad.What they will say when other knee or hip gets done not be long now.Then on the bright side you have your new van to look forward too mine is away for winter now but sat here at daughters looking out at sea with sun out, thinking should have come down with van.Next year all booked up May till September down south coast in van, end of October 3 weeks in Florida think about knee or hip then.