How to deal with recurring knee joint effusion caused by synovitis?

To address the recurring issue of knee joint effusion caused by synovitis, the following measures can be taken: 1. Intra-articular injection: Medications such as non-steroidal anti-inflammatory drugs (NSAIDs) and corticosteroids can be directly injected into the affected joint cavity to reduce inflammatory responses, alleviate pain, and inhibit the action of inflammatory mediators, thereby decreasing fluid accumulation. 2. Arthroscopic debridement: For cases of refractory synovitis or recurrent episodes, arthroscopic debridement may be considered. This procedure uses arthroscopic techniques to remove inflamed synovial tissue and accumulated fluid, helping to prevent further effusion. 3. Microwave therapy: Utilizing electromagnetic waves of specific frequencies on the affected area can improve blood circulation, enhance metabolic processes, and provide mild anti-inflammatory effects. It is suitable for mild to moderate joint effusion associated with synovitis. These interventions should be performed under the guidance of a physician, and patient cooperation is essential to promote absorption of the effusion and facilitate recovery from synovitis.