Efficacy of Platelet Rich Plasma Injections in Patients With Adhesive Capsulitis of the Shoulder

A venous blood sample of 8.5 ml were obtained from all patients. For the treatment group, the blood samples were treated with 1.5 ml ACD-A or sodium citrate to achieve anticoagulation. The blood was then centrifugated for 5 minutes with RCF 1200 G velocity to clump red blood cells, and then centrifugated for 10 minutes in same velocity to obtain platelet concentrate. 2 ml's of the resulting platelet rich plasma was injected to the shoulder of the subjects.All of the injections were done every two weeks, for a total of 3 times using 21 G injection needles with injection technique of posterior approach.

2 ml's of NaCl solution with 0,9% concentration was applied to the shoulders of the participants.