A Boston study analyzed the outcomes of 140 people with knee arthritis who received either steroid triamcinolone hexacetonide injections or placebo saline injections, every three months for two years.
A Brazilian study analyzed the effects of ozone gas on 63 patients who received injections of ozone gas into the knee and a control group of 35 who received injections of air.
Here are five findings from the studies.
1. In the study observing steroid drug injections, researchers found steroid drug injections do not slow the progression of knee osteoarthritis.
2. Researchers deemed the injections safe, but the injections did not enhance long-term outcomes of pain, mobility of joint damage compared to the placebo. However, researchers noted the shots can be used for short term pain relief.
3. In the Brazilian study, patients receiving ozone gas experienced significant improvements in pain, physical function and overall health and quality of life, compared to the control group.
4. Researchers did not report substantial differences between the two groups in the amount of time it took them to stand up, walk, return and sit.
5. While the findings are promising, researchers said they are still preliminary and more research is needed.
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