Ultrasound-Guided Dry Needling vs PRP for Refractory Lateral Epicondylitis

"An 18-gauge needle was first used to fenestrate the common extensor tendon and lateral periosteum. Once adequate anesthesia was confirmed, an 18-gauge needle was inserted along the tendon's longitudinal axis (without exiting the skin) and advanced in a peppering motion 40 to 50 passes from superficial to deep layers over approximately two minutes"

A 15 mL peripheral blood sample was drawn and centrifuged at 3 000 rpm for 3 minutes. Approximately 2 mL of PRP was aspirated directly from the buffy coat and injected into the epicondylar region under ultrasound guidance.