Contrary to recent reports, Boston-based researchers found that osteoarthritis patients who had total knee or hip joint replacement surgery, known as arthroplasty, were at increased risk of heart attack (myocardial infarction) in the early post-operative period. However, findings published inArthritis & Rheumatology, a journal of the American College of Rheumatology (ACR), indicate that long-term risk of heart attack did not persist, while the risk for venous thromboembolism — blood clot in veins and lungs — remained years after the procedure.
“Osteoarthritis is the most common form of arthritis, affecting 27 million Americans over the age of 25 according to the ACR. As the joint cartilage and bone deteriorates, knee or hip replacement surgery may be the only option to relieve pain and stiffness, and restore mobility. Previous studies estimate that 1.8 million arthroplasty procedures are performed each year worldwide, and that number may increase as the population ages.
“While evidence shows that joint replacement surgery improves pain, function, and quality of life for the osteoarthritis patient, the impact of cardiovascular health has not been confirmed,” explains lead study author Yuqing Zhang, D.Sc., Professor of Medicine and Epidemiology at Boston University School of Medicine in Boston, Massachusetts. “Our study examines if joint replacement surgery reduces risk of serious cardiovascular events among osteoarthritis patients.”
The present cohort study included 13,849 patients who underwent total knee replacement surgery and 13,849 matched controls who did not have surgery. Patients were 50 years of age or older and diagnosed with knee or hip osteoarthritis between January 2000 and December 2012″
Full article read here