The Impact of Perineural Injection Therapy for Adhesive Capsulitis.

The goal of this clinical trial is to learn if Perineural Injection Therapy (PIT) works to treat adhesive capsulitis (frozen shoulder) in adults. It will also learn about the safety of PIT. The main questions it aims to answer are: Does PIT reduce shoulder pain and improve shoulder range of motion more effectively than conventional therapy alone? What side effects or medical problems do participants experience when receiving PIT? Researchers will compare PIT to conventional therapy to see if PIT works better to treat adhesive capsulitis. Participants will: Receive either: PIT once weekly for 6 weeks plus physiotherapy and oral analgesics (excluding NSAIDs), or Conventional therapy only (physiotherapy and analgesics including NSAIDs) Attend scheduled follow-up visits at Week 6, 1 month, and 3 months after treatment Perform daily home-based shoulder exercises and record their analgesic use and any side effects in a patient diary