Many years ago our group stopped using intrathecal morphine for post operative pain in hips and knees because of a high incidence of complications in this population: Hypotension, PONV, Itching and respiratory depression. We simply did not want to be called constantly to deal with these issues. Some of our more junior colleagues seem to still like intrathecal morphine in cases like bilateral knees, and sure enough we are seeing a return of the phone calls from the floor about various side effects especially hypotension. Are you guys using intrathecal morphine in these patients? What's your experience?