Right shoulder, Beach-chair position, Arthroscopic view, 30° scope. (A) The rotator interval is released looking through the posterior portal and working through the anterosuperior portal with an ablator. (B) The coracoacromial ligament is released through the anterosuperior portal with an ablator and looking through the posterior portal. (C) The superior and presubscapularis tendon space is released with an ablator looking through the anterosuperior portal and working through the anteroinferior portal. (D) The clavipectoral fascia is released with an ablator looking through the anterosuperior portal and working through the anteroinferior portal. (A, ablator; C, coracoid; CAL, coracoacromial ligament; CPF, clavipectoral fascia; CT, conjoint tendon; HH, humeral head; LHB, long head of the biceps tendon; RI, rotator interval; SSC, subscapularis tendon.)