Injections of HA

Hyaluronic acid injection is used to treat knee pain caused by osteoarthritis (OA) in patients who have already been treated with pain relievers and other treatments that did not work well.

Hyaluronic acid is similar to a substance that occurs naturally in the joints. It works by acting like a lubricant and shock absorber in the joints and helps the joints to work properly.

his medicine is to be administered only by or under the immediate supervision of your doctor.

NICE suggests that hyaluronan injections may reduce pain over six months. But the injections may cause short-term inflammation in the knee.

Pain relief may not be immediate, and usually begins around the fourth week after the initial injection. The duration of relief periods may vary from 2 months up to 6 months or even longer. The most effective period is usually between weeks 5 and 13 weeks. Multiple injections regimes may be more effective than a single injection in some people. Additional injections may provide longer relief up to 3 years in some patients who show initial improvement with this treatment. This long period of pain relief may help postpone total knee replacement surgery in some cases.