Seventy patients with frozen shoulder in the freezing stage were randomized to receive either combination therapy (hydrodilatation, corticosteroid injections, mobilization, and physical therapy; n=35) or physical therapy alone (n=35) for eight weeks. The primary outcome was the Shoulder Pain and Disability Index (SPADI). Secondary outcomes included pain (VAS), range of motion (ROM), the Shoulder Disability Questionnaire (SDQ), quality of life (SF-36), and self-assessment. Outcomes were assessed at 1, 2, 4, and 6 months. Overall, the combination therapy group demonstrated significantly greater improvements in pain, ROM, SPADI, and SF-36 scores compared to the physical therapy group, with effects lasting six months. This suggests combination therapy provides quicker and longer-lasting benefits for frozen shoulder.