A securement system for securing a multi-lumen medical article. The system can include a patch, and a longitudinal flap. The flap can include a fixed proximal portion that is fixed with respect to the patch a hinge and a free distal portion movable via the hinge with respect to the patch and the fixed proximal portion of the flap between an open position and a closed position. The hinge can include a lateral width that is less than a lateral width of the patch and less than a lateral width of the flap. The hinge can be dimensioned to be received between two adjacent proximal tubings of the medical article, e.g., to provide a longitudinal stop to the medical article. The free distal portion can be configured to secure at least the multi-lumen joint of the medical article to the patch.