Steroid injections may lead to more long-term harm than previously thought, new study says

A doctor injects cortisone into a patient's knee.

(CNN)Doctors and patients should beware if they're hoping to use steroid injections to relieve the pain associated with osteoarthritis.

The shots may be doing more harm than good.
In a new study published in the journal Radiology, researchers looked at 459 patients in a US hospital who had received one to three corticosteroid injections into a knee or hip.
    Of those patients, 36 of them, or 8%, experienced adverse events in their joints, as shown on medical imaging tests.