Low Level Laser Versus Neural Mobilization of Brachial Plexus on Shoulder Dysfunction Post Liver Donation

Inclusion Criteria: * Patients are both males and females. * Their age will range from (20-50) years. * Patients will suffer from unilateral shoulder pain(Rt shoulder). * Patients will begin the training program one week post.operative. * All patients will suffer from moderate to severe pain (VAS score \> 4). * Patients will be given their informed consent. Exclusion Criteria: * Known history of high level Spinal cord injury and malignancy * Metabolic disease with a neurological component such as diabetes. * Orthopedic disorders such as fracture or dislocation. * Musculoskeletal disorders that will impair performance during training and tests. * Uncontrolled cardiovascular or pulmonary diseases . * Circulatory disturbances of upper extremity * Psychiatric illness, severe behavior or cognitive disorders. * Uncooperative patients.