Treatment of the Rotator Cuff Disease With Platelet Rich Plasma Injection

The purpose of this investigator initiated study is to clinically evaluate the efficacy of a
new treatment for subacromial impingement syndrome and partial thickness rotator cuff tears.
This treatment consists of a platelet rich plasma injection into and around the rotator
cuff. It is thought that this treatment will dramatically improve outcomes for patients
suffering from these two conditions.

Subjects will be randomized by choosing a slip of paper from an envelope. This process will
randomize 25 patients to the experimental group, and 25 patients to the control. The
experimental group will undergo a blood draw, allowing for an injection of platelet rich
plasma around the rotator cuff. The control group will undergo a corticosteroid injection
into the subacromial space surrounding the rotator cuff as sole treatment. Patients will be
followed for three months for pain, and will fill out questionnaires at six weeks and three
months post injection, which will give insight into functionality and pain changes that the
rotator cuff is experiencing due to treatment.

Subjects will be outpatients. Subjects may include employees, students, minorities, and
elderly, although no subsets of these will be formed.

Subjects will be between 18 and 89 years of age.

In total, subject participation will last approximately 3 months.