(A) The anatomic landmarks and portal positions are marked. The SCP is located between the coracoid (asterisk) and the clavicle on the palpable medial border of the coracoid. This is always made using the outside-in technique. (B) An 8.25-mm arthroscopic cannula is placed through the supracoracoid portal while viewing from the posterior portal using a 70° arthroscope. The supracoracoid portal is placed along the medial border of the coracoacromial ligament. (ALP, anterior lateral portal; AP, anterior portal; C, coracoid bone; CAL, coracoacromial ligament; L, left; SCP, supracoracoid portal.)