- lateral epicondyle of humerus, radial collateral ligament of elbow, annular ligaments of radius and the supinator crest of ulna;
- oblique line on the lateral anterior surface of the upper 1/3 of radius;
- supinator covers the upper third of the radius;
- action: supinates the forearm;
- nerve supply: radial (PIN branch), C5, C6
- PIN supplies ECRB and supinator muscles before entering arcade of Froshe;
- PIN brach travels thru the substance of the supinator, and runs between the superficial and deep heads of the muscle;
- synergists: biceps brachi
- humerus fracture:
- w/ humerus frx, need to r/o radial nerve palsy;
- first branches distal to frx site will be ECRB & supinator
Tendon transfer. Biomechanic Comparison of 3 Tendon Transfers for Supination of the Forearm.
Investigation of two possible compression sites of the deep branch of the radial nerve and nerve supply of the extensor carpi radialis brevis muscle.
The anatomical relationship between the posterior interosseous nerve and the supinator muscle.
Extensile posterior approach to the radius.