Modified Henry approach
The modified Henry approach uses the plane between flexor carpi radialis tendon and the radial artery.
The classical Henry approach goes between brachioradialis and the radial artery, i.e., radial to the radial artery. The modified approach is ulnar to the radial artery.
The flexor carpi radialis tendon is palpated, before making the skin incision to the radial side.