Could a simple local anesthetic replace general anesthesia for frozen shoulder treatment?

This trial tests whether a wide-awake local anesthesia technique called WALANT can match the results of general anesthesia for shoulder manipulation in people with frozen shoulder. Adults who have had symptoms for at least six months without improvement are randomly assigned to one of two groups. The main goal is to see if shoulder forward flexion four weeks after the procedure is similar between the two approaches, potentially offering a simpler, outpatient alternative.