Comparing Autologous Blood, Corticosteroid, and Their Combined Injection for Treating Lateral Epicondylitis

The goal of this clinical trial is to compare autologous blood, corticosteroid, and their combined injection for treating lateral epicondylitis. The main question it aims to answer are: • Which of these highly used drugs in treatment of lateral epicondylitis is more effective? Participants were randomly allocated into three equal treatment groups (AB versus CS versus their combination) with sealed envelopes prepared by a computer-based random number generator. Patients in the AB Group received 1 ml of autologous venous blood mixed with 2 ml of 2% prilocaine HCl, patients in the CS Group received 1 ml of 40 mg methylprednisolone acetate mixed with 2 ml of 2% prilocaine HCl, and patients in the Combined Group (AB+CS) received 1 ml of autologous venous blood, 1 ml of 40 mg methylprednisolone acetate mixed with 1 ml of 2% prilocaine HCl. Each group received an equal amount of (3 ml) injected material. PRTEE and HGS measurements were assessed before the injection (baseline values), on Day 15, Day 30, and Day 90, in the same manner by the senior author.