A Study to Assess the Efficacy of Early Physical Therapy Intervention Following a Modified Unilateral Neck Dissection for Treatment of Head and Neck Cancer

Inclusion Criteria: * Adults age 18-85, able to give informed consent * Subject has provided written informed consent * Received Modified Unilateral Neck Dissection with sparing of the SAN * Not currently using transcutaneous electrical nerve stimulation (TENS) as a pain relieving modality * Not currently receiving acupuncture as a pain relieving modality * Able to participate with treatment group protocol including physical therapy appointment every other week Exclusion Criteria: * History of prior shoulder injury or surgery including rotator cuff repair or total shoulder arthroplasty. * History of CVA with hemi paresis * Bilateral neck dissection * Known severed SAN