Inclusion Criteria:  Ages > 18 years old 18+ years old Meet clinical and radiographic parameters necessary to undergo shoulder arthroplasty Subscapularis tendon intact clinically on exam or via advanced imaging Subject has the ability to have their shoulder arthroplasty completed using either the tenotomy or peel technique.  Exclusion Criteria:  Inability of patient to provide informed consent Iodine allergy Subscapularis tendon tear or concern for tear Incarceration Pregnant women via verbal indication Ages <18 years old Prior deltopectoral approach to the ipsilateral shoulder