Comparing the Efficacy of Local Corticosteroid Injection and High-Intensity Laser Therapy in Patients with De Quervain Tenosynovitis

Background and Objective: De Quervain's tenosynovitis is one of the common causes of wrist pain. The present study aimed to compare the effectiveness of high-power laser therapy and local corticosteroid injection in the treatment of De Quervain's tenosynovitis. Materials and Methods: In this clinical trial, 30 patients diagnosed with De tenosynovitis were randomly assigned to two groups of 15, A and B. Group A underwent high-power laser therapy, five sessions for three consecutive weeks, and group B received corticosteroid injections of 1 ml triamcinolone and 1 ml lidocaine 2% in the wrist under ultrasound guidance. Tendon thickness, pain intensity, quality of life, and treatment satisfaction were measured and compared in both groups pre-treatment, month one, and month three post-treatment. Results: In groups A and B, respectively, the mean scores of the thickness of extensor abductor pollicis longus and abductor pollicis brevis muscles before the treatment were 7.57±0.63 and 7.25±0.58 (P=0.120). these value were calculated at 6.55±0.61 and 6.54±0.40 one month later (P=0.955). They were 5.71±0.75 and 5.99±0.45 (P=0.239) mm three months post-treatment. In addition, pain scores before the treatment were 8.60±1.18 and 8.47±1.46 (P=0.785). One month later, they were 2.73±1.66 and 4.27±1.16 (C=0.785), and three months post-treatment, they were 1.73±1.33 and 2.47±1.06 (P=0.007). There was no significant difference between the two groups in terms of quality of life and satisfaction with treatment (P<0.05 for all). Conclusion: Both local corticosteroid injection and high-power laser treatment methods were safe in the treatment of De Quervain's tenosynovitis, leading to a reduction in pain and tendon thickness, as well as an increase in the patient's quality of life