Related Experiment Video
Updated: May 8, 2026

Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
Published on: May 26, 2023
Combined common extensor and supinator aponeurotomy for the treatment of lateral epicondylitis
Yorell Manon-Matos1, Amir Oron, Thomas W Wolff
1Institute for Hand and Microsurgery, University of Louisville School of Medicine, Louisville, KY 40202, USA. ymatos@kleinertkutz.com
Abstract:
Pain at the lateral epicondyle and the extensor origin that is attributable to lateral epicondylitis can be successfully treated with a combined aponeurotomy of the supinator and the extensor muscles. This technique has been used at our institution for over 3 decades with good results. Aponeurotomy of the supinator decompresses the posterior interosseous nerve, whereas the extensor aponeurotomy relieves the stresses on the extensor carpi radialis brevis origin. We retrospectively reviewed a series of 56 patients clinically diagnosed with resistant lateral epicondylitis who underwent surgery by a single surgeon with our technique between 2002 and 2010. Patients experienced a subjective improvement in symptoms, visual analog pain score, and grip strength (Jamar II). Only 3% of patients experienced recurrence requiring further treatment.
Related Concept Videos
Muscles that Move the Forearm
Forearm Flexors
The biceps brachii, brachialis, and brachioradialis are forearm flexors. The biceps brachii is made up of two heads. Its long head originates at the supraglenoid tubercle of the scapula, whereas that of the short head is...
Muscles of the Forearm that Move the Hand and Fingers
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi radialis,...
Bones of the Upper Limb: Ulna
Spinal Nerves: Plexus I
The Cervical Plexus
The cervical plexus, formed by the anterior rami of the first four...
Muscle Coordination and Action
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement.

