How much would you be willing (and able) to pay to get your knee or hip replaced? Calgarian Linda Slater's knee pain became unbearable during her two-year wait to see an orthopedic surgeon. She drained her retirement savings to pay $30,000 for a new knee at a private Toronto clinic. Dr. Rick Zarnett, an orthopedic surgeon who works out of both a private clinic and public hospital, says the system needs to improve so patients can get surgery sooner.