Platelet Rich Plasma and Supraspinatus Tear

At inclusion in the study, demographic data (age, gender, duration of complaints, and body mass index) will be recorded. Randomization Patients will be randomized into two matched groups: A) PRP-Injection Group - Patients in this group will receive three ultrasound guided PRP injections in the supraspinatus tendon with one week interval (Ilhanli et al., 2015). After the injection, patients will be instructed to limit the use of shoulder for at least 24 hours and to use cold therapy for pain. After the third injection, ROM, and stretching exercises will be allowed and one month after the end of injections, patients will be recommended to begin the strengthening program as tolerated. Exercise is performed with 10 repeats five sessions per week. B) Physical Therapy Group - Patients in this group will be treated with hot pack for 15 minutes, ultrasound in continuous mode (1.5 watt/cm2 for five minutes), trans-cutaneous electrical nerve stimulation in brief-intense mode for 15 minutes, range of motion (ROM), followed by stretching and strengthening exercises with 10 repeats 15 sessions (five sessions per week for three weeks). After the physical therapy, the exercise program will be continued as homework during the follow-up period. Patients in t