Hi Ruth... hope all goes well with your surgery... I've had two TKR... If I can give you any advice it would be .. do as much muscle strengthening exercises as you can before surgery.. It really makes a difference also take arnica... you can get them from health food shops or boots... I didn't take them 1st time round .. but I did this time take them a few weeks before op and a few weeks after.. I had hardly any bruising .. my wound has healed really well... I feel I am stronger due to the strengthening exercises... I paid for one session with a private physio who taught me lots of useful tips and techniques.. very best of luck. Mary