In an abstract published by the American Journal of Sports Medicine of a Korean language article, platelet rich plasma was found to be more effective than prolotherapy for proximal biceps tendinitis. In the study 100 patients were studied in a case-control fashion and then followed for 12 months. No significant differences were noted between the groups in the first months. However, significant differences were found between the groups at 3, 6 and 12 months in visual analog pain scores, Korean Shoulder Society score, UCLA score and Constant shoulder score (p < 0.05). The conclusion of the study was "PRP therapy is more effective treatment than prolotherapy"
The details of this study are not known. It does provide some data to support the use of PRP for this common problem. If anyone out there can find and translate this article it would be most helpful. This dramatically speaks to the importance of finding these articles (in any language) and then coordinating the information for patients and providers.
"Comparative Studies of Platelet-Rich Plasma (PRP) and Prolotherapy for Proximal Biceps Tendintis"
Moon et al
Department of Orthopaedic Surgery; Gwangju, Korea
Journal of the Korean Orthopedic Association
Quoted in Vol. 40:6 June 2012 of the American Journal of Sports Medicine