Comparison of Ultrasound-Guided Subacromial Vs. Systemic Steroid Injections for Frozen Shoulder: a Multicenter Pilot Study

gluteal injection of 1 ml of Compound betamethasone and 4 ml of normal saline at week 0,2,4

ultrasound-guided subacromial injection of 1 ml of Compound betamethasone and 4 ml of normal saline at week 0,2,4.

ultrasound-guided subacromial injection of 5 ml of normal saline at week 0,2,4.

gluteal injection of 5 ml normal saline at week 0,2,4.

The participants were instructed to perform home rehabilitation exercise for 12 weeks. 30 minutes of home-based self-rehabilitation exercises in the morning, afternoon, and evening, with a total of 90 minutes per day. Standard instructional videos and demonstrations by outpatient rehabilitation therapists are provided to participants. Each exercise, including wall-climbing, table-climbing, and back-climbing, should be performed for 10 minutes, with a total of 30 minutes per session.