A prospective randomized controlled study among 60 consecutive adhesive capsulitis to compare between the ultrasound-guided anterior hydrodilatation in rotator interval and the posterior approach.

patients was randomized into two equal groups. Group I received ultrasound-guided hydrodilatation with corticosteroid, saline, and local anesthetic via posterior intra-articular approach; group II received the same ultrasound-guided hydrodilatation via anterior rotator interval approach.

Both groups received guided stretching exercises for 3 months after injection. Baseline and 3 months evaluation of pain by visual analogue scale (VAS), shoulder pain and disability index (SPADI), and range of motion (ROM) had been recorded for all patients.

A statistical power analysis was performed after sample size estimation, based on data from the current study (N = 60), comparing group I to group II.

Qualitative data was expressed as numbers and percentages, and Chi-squared test, Quantitative data were expressed as mean and standard deviation.

Inclusion Criteria:

• patients aged 35 to 60 years,
• patients who suffered pain and stiffness in only one shoulder, for 1 to 6 months
• patients who had restriction of passive motion.

Exclusion Criteria:

• patients with previous trauma,
• patients with neurological
• patients with endocrinal diseases
• patients with shoulder tumor
• patients with arthritis
• people who had received intra-articular shoulder injection within the last 6 months.
• Patients with tendon tear

the participants and outcome assessor didn't know the group classification