Clinical effects of suprascapular nerve block in addition to intra-articular corticosteroid injection in the early stages of adhesive capsulitis: A singleblind, randomized controlled trial.

Abstract

The aim of this study was to evaluate the short and long-term effects of the combination of suprascapular nerve block (SSNB) and intra-articular corticosteroid injection (IAI) on pain, shoulder range of motion (ROM), disability, and quality of life in the management of patients with adhesive capsulitis (AC). Forty patients (ages 30-70 years) who were diagnosed with AC stages 1 and 2 were randomlyassigned to one of two groups: Group-1 received IAI and SSNB combination, while group-2 only-IAI. Both groups started a three-week rehabilitation program after the intervention. The Shoulder Pain and Disability Index (SPADI), Numeric Rating Scale (NRS), active and passive shoulder ROMs, and the Short Form 36(SF-36) were assessed by a physiatrist who was blinded to the allocation at baseline and three weeks, three months, and twelve months. The NRS and shoulder ROMs were also examined in the first hour. Nineteen patients from each group with mean ages of 55.84±2.19 (15 females, 4 males) and51.79 ± 1.58 (14 females, 5 males) were included. Within the groups, SPADI and NRS scores were decreased, while active and passive ROMs and the physical function, physical role, and bodily pain domains of SF-36 were increased by time (P < 0.05). Between the groups, the change in NRS value and active flexion in the first hour was more remarkable in group 1 (P < 0.05). No significant difference between outcome measurements was found at the 3rd week, 3rd month, and 12th month (P > 0.05). SSNB as an adjunct to IAI in AC positively affected the immediate pain relief and functional improvement after the intervention; however, it did not yield any additional benefit in the short and long-terms. Level I, Therapeutic Study.