November 1st, 2013
Hip and Knee Replacements Associated with Lower CV Risk
Total joint arthroplasty was associated with reduced cardiovascular risk among patients with knee or hip osteoarthritis in a BMJ study.
Researchers in Canada matched roughly 150 people aged 55 or older with moderate-to-severe knee or hip osteoarthritis who underwent total joint replacement to people with osteoarthritis who did not have surgery.
People who underwent arthroplasty were less likely to have a serious cardiovascular event during 7 years’ follow-up, compared with those who did not have surgery (hazard ratio, 0.56). The authors estimate that the number needed to treat to prevent one cardiovascular event was 8.
The authors offer several potential explanations for the surgery’s observed cardiovascular benefit, including improvements in exercise capability