3. Anconeus

Origin: Lateral epicondyle of the humerus

Insertion: Lateral aspect of the olecranon process and the superior proximal aspect of the posterior ulna

Action:

• Assists with elbow extension
• Stabilizes the elbow during pronation and supination
• Prevents impingement of the elbow capsule during extension by pulling the capsule out of the joint

Innervation: Radial nerve (C5-T1)

Needling

Position: Prone or supine

Palpation: Palpate the lateral epicondyle of the humerus and the olecranon process

Technique: Needle perpendicularly towards the posterior aspect of the ulna or lateral epicondyle of the humerus with the arm off the edge of the bed in prone or with the arm flexed in supine

Caution: Low