Tissue anchors and systems and methods for delivering and removing them are provided. In an exemplary embodiment, the tissue anchor may include an outer shell including a proximal end, a distal end, a passage extending therebetween, and a plurality of expandable arms； an expander including a proximal portion disposed within the passage and distal portion that extends distally from the outer shell distal, the expander movable proximally relative to the outer shell to a deployed position wherein the distal portion directs the plurality of arms outwardly to engage adjacent bone. A fork extends from the distal portion of the expander including a pair of tines spaced apart from one another and a concave distal surface extending between the tines. A suture loop extends from the distal portion of the expander for capturing a tissue structure.
