Comparison between Ultrasound-guided Percutaneous Needle Tenotomy and Extracorporeal Shockwave Therapy in Reducing Pain and Functional Disability in the Management of Recalcitrant Lateral Epicondylosis: A Randomized Controlled Study

Abstract

Abstract Background: Tendinopathies like lateral epicondylosis (LE) are a difficult problem requiring lengthy management with patients often responding poorly to treatment. Although it is known as a tendonitis, histopathologic studies in recalcitrant LE have shown that it is associated with few inflammatory cells and more of fibroblasts. Emerging regenerative therapies such as autologous blood, platelet-rich plasma, extracorporeal shockwave therapy, and tenotomy have a significant role in the management of recalcitrant cases. The present study aimed to compare ultrasound-guided percutaneous needle tenotomy and extracorporeal shockwave therapy in reducing pain and functional disability in the management of recalcitrant LE. Materials and Methods: A randomized controlled study was conducted for 2 years on 82 patients recruited from the outpatient department, and they were randomly assigned to two groups – Group A (41 patients) received extracorporeal shockwave therapy, while Group B (41 patients) underwent ultrasound-guided tenotomy of the common extensor tendon. The outcome was measured by the Visual Analog Scale (VAS), grip strength, and Patient-Rated Tennis Elbow Evaluation (PRTEE) and was assessed at baseline, 4, 12, and 24 weeks. Results: At the end of 24 weeks, the VAS score was 1.34 ± 0.48 in Group B, while it was still 3.44 ± 0.59 in Group A. The PRTEE score reduced to 24 ± 1.74 in Group B compared to 40.91 ± 2.94 in Group A. Conclusion: Percutaneous tenotomy provides significant improvement in pain and elbow activities as measured by VAS and PRTEE at 24 weeks, and thus, a single percutaneous tenotomy may be considered as a cheap and easy novel alternative in resistant cases of LE.