Lateral Epicondylitis Treated with Platelet-Rich Plasma Injection and Corticosteroid Injection.

Introduction: Lateral epicondylitis, or tennis elbow, affects 1%-3% of adults aged 35-50, causing pain and weakness in the dominant elbow due to chronic inflammation of the extensor tendon. While corticosteroid injections (CSI) are commonly used for treatment, they offer only short-term relief. Platelet-rich plasma (PRP) is a promising alternative with potential for long-term benefits. This study compares the efficacy of PRP and CSI in treating lateral epicondylitis. Materials & Methods: A randomized controlled trial was conducted at Chettinad Hospital and Research Institute from February 2020 to March 2021, involving patients with lateral epicondylitis unresponsive to non-invasive treatments. Patients were randomly assigned to receive either PRP or CSI, with pre- and post-treatment pain and function assessed using VAS, PSFS, and PRTEE scores. Results: PRP showed better long-term pain reduction and functional improvement than CSI. At 6 months, PRP-treated patients had significantly lower VAS and PRTEE scores, indicating superior outcomes. Discussion: Although CSI provided quicker initial relief, PRP demonstrated sustained benefits at 3 and 6 months. PRP's effectiveness in promoting tissue healing may explain its long-term success. Conclusion: PRP is more effective than CSI for long-term management of lateral epicondylitis, offering superior pain relief and functional improvement.