Since the beginning of shoulder arthroscopy, many different approaches were described for Bankart repair to allow visualization and treatment. The anterior portals do not allow access to the posterior and inferior part of the glenoid. We present a new instrumental portal for shoulder arthroscopy. This approach is perfectly safe, without any anatomic risk. It is particularly helpful in the correct treatment of an anterior Bankart lesion, in repairing posterior and inferior extensions of a Bankart lesion, and in performing a plication in multidirectional hyperlaxity.