Abstract

From January 2021 to March 2024, 36 patients with partial supraspinatus tendon injury who underwent platelet-rich plasma therapy were studied. The preparation protocol used was recommended by Vendramini in 2009, with two centrifugations, the first for 10 minutes at 400G and the second for 10 minutes at 800G. Each patient received 3 applications of PRP-L with a 15-day interval between each application. After each application, patients were instructed to start specific physiotherapy, but without the use of local cryotherapy. The rehabilitation guidance for all patients was for analgesia and assisted range of motion gain. Results There was a predominance of injuries in females and in the age group of the fifth and sixth decades of life, an improvement in UCLA scores in all patients, but the criteria pain and clinical satisfaction were the most relevant factors in the overall improvement of patients. The general function and pain scores did not show significant changes directly related to the use of PRP-L, and at the end of the clinical evaluation at 12 months, a statistically significant progression was observed, by the student’s t test with a P value of 0.005, of the mean UCLA scores from 12.9 to 18.9. Conclusion: The use of PRP-L was relevant and effective in the treatment of partial supraspinatus lesions.

Keywords:PRP; Rotator cuff; Orthobiologicals