A suture attachment device and method for securing a suture to an anatomic structure. The suture attachment device includes a cannulated member including a first surface and a second surface. A plurality of castellations extend axially outward from at least one of the first surface and the second surface, wherein each castellation includes a proximal end connected to the cannulated member, and a distal end located distal from the cannulated member, the distal end being flared radially outward relative to the proximal end.