RT Journal Article SR Electronic A1 Powers, Jenny T1 Similar Efficacy Seen with Ultrasound-Guided Injections of PRP or Saline for Epicondylitis JF MD Conference Express YR 2014 FD SAGE Publications VO 14 IS 17 SP 18 OP 19 DO 10.1177/155989771417010 UL http://mdc.sagepub.com/content/14/17/18.abstract AB Platelet-rich plasma (PRP) was not more effective in relieving the pain due to epicondylitis (tennis elbow) compared with saline when each was delivered by ultrasound-guided injection. However, both groups showed significant decreases in pain scores from baseline at 6 months, suggesting to investigators that tendon stimulation may be the actual mechanism behind the observed lesion repair and improvement in pain symptoms.