Effectiveness of Platelet-rich Plasma Injection for Rotator Cuff Tendinopathy: A Prospective Open-label Study.

Objective: Assess platelet rich plasma (PRP) injection for rotator cuff tendinopathy (RCT).

Design: Prospective open label study with 1-year follow-up.

Methods: Participants recruited from an outpatient sports medicine clinic had clinically and magnetic resonance image (MRI)-demonstrated RCT refractory to physical therapy and corticosteroid injection.

The efficacy of prolotherapy for lateral epicondylosis: a pilot study.

Objectives: To assess whether prolotherapy, an injection-based therapy, improves elbow pain, grip strength, and extension strength in patients with lateral epicondylosis.

Setting: Outpatient Sport Medicine clinic.

Study Design: Double-blind randomized controlled trial.