Allogeneic platelet-derived growth factors local injection in treatment of tennis elbow: a prospective randomized controlled study.

Purpose: The purpose of this study aimed to evaluate the efficacy of local injection of allogeneic platelet-derived growth factors in treatment of patients with tennis elbow.

Patients And Methods: This study included 120 tennis elbow patients randomly divided into two groups. The patients were locally injected with allogeneic growth factors (treatment group) or with normal saline (control group).