The split portal: Description of a new accessory posterior portal for arthroscopic shoulder instability procedures

Using a Posterolateral Portal to Pass and Tie the Suture of the Inferior Anchor During Arthroscopic Bankart Repair

Using a posterolateral portal in passing and tying the inferior knot allows good labral reduction and adequate capsular shift to treat anterior shoulder instability. In this technique, the most inferior anchor is placed through a low anterolateral portal. A penetrating grasper is introduced from a posterolateral portal situated 2 to 3 cm distal and lateral to the viewing portal. This portal is used to pass the 2 limbs of the anchor suture as inferior as possible through the labrum and capsule close to 6 o'clock position to form the 2 limbs of the first mattress suture. Finally, knot tying is performed through this posterolateral portal, thus allowing better superior shift of the capsulolabral tissue. The other 2 anchor sutures are passed and tied through the low anterolateral portal.