Patients with adhesive capsulitis for at least 3 months were enrolled and randomly allocated into group 1 (hydrodilatation with hyaluronic acid under ultrasonographic guidance plus PT) and group 2 (PT alone). The patients were evaluated before treatment and were reevaluated 0, 6, and 12 weeks after the beginning of the treatment. Outcomes measures included a pain scale (visual analog scale), range of motion, Constant shoulder score, Shoulder Pain And Disability Index, and the Short Form-36