“…The surgical trauma may even lead to renal failure, and the risk of such failure occurring increases with the extent of tissue damage, from hypotension, from multiple blood transfusions (Sherman 1982, Shin et al 1986, and in cases with postoperative infections (Heloury et al 1983, Wilkins and Faragher 1983, Myers and Moran 1986. In total hip replacement (THR), these risk factors are often present, and severely impaired renal function has been reported to occur in more than 10 percent of the patients (Gelman et al 1979, Isacson and Collert 1984, Hedstrom and Hybbinette 1988. To our knowledge, no prospective study of THRs has evaluated the changes in kidney function on a more definitive basis by plasma clearance as regards glomerular filtration rate.…”