Frequently, multiple injections are required for comprehensive treatment of the patient. Typically, patients have multiple trigger points, and 3 sets of injections are required; however, it has been this author's observation that administration of up to 10 rounds of trigger point injections may be necessary. Each week, the patient may return with a new "worst spot. Tendon and joint injections generally are limited to no more than 3 in 1 joint per calendar year because of the potential for mechanical disruption of the joint space and structures.
Information from the National Library of Medicine
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Corticosteroids are used to control inflammation in arthritis and other inflammatory conditions. Corticosteroids can be injected directly into inflamed tissues, or they can be delivered to the whole body via oral preparations, intravenous injections, or intramuscular injections. Steroid injections may provide significant relief to patients with arthritis or musculoskeletal conditions. For patients with rheumatoid arthritis , the injections are typically offered when only one or two joints display active synovitis . The goal of treatment is to quell symptoms of a flare or to enable slower-acting drugs, such as methotrexate or Plaquenil , time to work. For example, in early rheumatoid arthritis, study results revealed that a combination of DMARDs and intra-articular steroids is significantly better than DMARDs alone.