Last updated: 11/24/2009

Information about mortality and complication rates following THR is limited because the procedure is considered elective. In addition, different states and countries use different sets of measurements in evaluating THR outcomes. One Norwegian study found that patients who had THR between 1987 and 1999 had a lower long-term mortality rate than the age- and gender-matched Norwegian population. A Canadian study found a 1.6% mortality rate within 30 days of surgery for THR patients between 1981 and 1999. A 2002 report from the Mayo Clinic found that the overall frequency of serious complications (heart attack, pulmonary embolism, deep vein thrombosis, or death) within 30 days of THR was 2.2%, the risk being higher in patients over 70. The most important factor affecting morbidity and mortality rates in the United States, according to a 2002 Harvard study, is the volume of THRs performed at a given hospital or by a specific surgeon; the higher the volume, the better the outcomes.