The Efficacy and Safety of Shoulder Chuna on in Patients With Shoulder Pain Caused by Traffic Accidents

Inclusion Criteria: * Patients aged 19-69 years on the date they sign the consent form. * Patients with shoulder pain and restricted movement occurring within 5 days after a traffic accident. * Patients who are hospitalized due to traffic accident. * Patients with NRS of shoulder pain ≥ 5 with restricted movement due to a traffic accident. * Patients who provide consent to participate in the trial and return the informed consent form. Exclusion Criteria: * Patients with a specific serious disease that may cause shoulder pain: malignancy, spondylitis, inflammatory spondylitis, etc. * Patients with progressive neurological deficits or with severe neurological symptoms. * Patients with medical history of cervical surgery or shoulder surgery within the last three weeks. * Patients with a specific serious disease that may interfere with the interpretation of the therapeutic effects or results: malignancy, spondylitis, inflammatory spondylitis, etc. * Chuna therapy is deemed inappropriate or unsafe due to conditions like fractures, dislocations, ligament tears, or unstable healing fractures; skeletal demineralization and ligament laxity with subluxation or dislocation; or inflammation * Presence of other chronic diseases that could interfere with treatment outcomes or interpretation, such as cardiovascular disease, kidney disease, diabetic neuropathy, dementia, or epilepsy * Currently taking steroids, immunosuppressants, psychiatric medications, or other drugs that may affect st…