Ultrasound-Guided Pulsed Radiofrequency Versus Phenol Neurolysis for Post-Stroke Hemiplegic Shoulder Pain

Inclusion Criteria: * Adults aged 18 years or older. History of ischemic or hemorrhagic stroke confirmed clinically and/or by neuroimaging when available. Post-stroke shoulder pain on the hemiplegic side with VAS pain intensity \>=4/10 during rest, passive movement or functional use. Spasticity of target shoulder-girdle muscles with MAS score \>=2. Stable medical condition allowing outpatient or inpatient interventional procedure. Ability to provide written informed consent; if the patient has a communication impairment, consent will follow institutional ethics-approved procedures involving legally authorized representatives when appropriate. Expected ability to attend scheduled follow-up visits through 6 months Exclusion Criteria: * Previous radiofrequency treatment or phenol neurolysis to the affected shoulder within the previous 6 months. Botulinum toxin injection to the target shoulder muscles within the previous 3-6 months. Shoulder fracture, dislocation or rotator cuff tear requiring surgery. Active infection at the injection site. Known allergy or contraindication to phenol, local anesthetic, antiseptic solution or other procedure-related medication. Coagulopathy, platelet disorder or anticoagulant/antiplatelet treatment that cannot be safely managed according to local anesthesia/interventional-pain policy. Severe uncontrolled medical illness, unstable cardiopulmonary disease, uncontrolled diabetes with active infection risk, or any condition judged by inves…