Ultrasonography-guided hydrodissection using platelet-rich plasma or corticosteroid in adhesive capsulitis of the shoulder: A comparative study

Abstract

Background: Adhesive capsulitis is a condition that presents with pain and progressive limitation of both active and passive shoulder movements. It can be primary or secondary, the latter includes causes such as rotator cuff tear, cardiovascular disease, and diabetes mellitus. The American Shoulder and Elbow Surgeons defines that adhesive capsulitis is a condition of uncertain ethology characterized by a significant restriction of both active and passive shoulder motions that occur in the absence of known intrinsic shoulder disorder. Commonly described as: Stage 1 – Freezing stage, with pain and stiffness lasting around 9 months. Stage 2 – Frozen stage, with persistent stiffness lasting 4–12 months. Stage 3 – Thawing stage, with spontaneous recovery lasting 12–42 months. Ultrasonography (USG)-guided hydrodissection is used for adhesive capsulitis of the shoulder due to its cost-effectiveness and acceptance among patients. As adhesive capsulitis is postulated as an i nflammatory and fibrotic disease, easy treatment with intra-articular corticosteroids (CSs) injection may reduce synovitis, limit the development of capsular fibrosis, and alter the natural history of disease. CS injections are effective for shorter duration, but newer agents such as platelet-rich plasma (PRP) are more effective with no serious side effects. Materials and Methods: In this study, 40 patients were taken of adhesive capsulitis of the shoulder and were divided randomly into two groups. One group received injection PRP and the other group received injection CS. The outcome was recorded. Results: There was a statistically significant reduction in numeric rating scale pain scores in both the groups over a time period of 6 weeks, but the PRP injection was observed to be better in reducing the pain scores when compared to the CS injection after the 6th week (P = 0.037). Initially, the CS injection performed better in the 1st week due to anti-inflammatory action. By the 3rd week, both the injections showed a similar effect. However, at the end of the study period (6 weeks), there was a better reduction in the Shoulder Pain and Disability Index (SPADI) pain scores (P = 0.0057) and SPADI disability scores (P = 0.029) of the group PRP. Conclusion: We concluded that USG-guided hydrodissection with PRP is more effective therapy than CS in terms of reduction of pain and improvement in shoulder function in the treatment of adhesive capsulitis of shoulder.