Apparatus for securing a suture to a bone, the apparatus comprising an elongated body having a distal end, a proximal end, and a lumen extending between the distal and proximal ends, the lumen comprising a distal section and a proximal section, the distal section having a wider diameter than the proximal section; an elongated element extending through the lumen; and a locking element mounted to the distal end of the elongated element and disposed in the distal section of the lumen; whereby, when the elongated body is disposed in bone, and a suture extends through at least a portion of the lumen, and the locking element is thereafter moved proximally, proximal movement of the locking element causes the elongated body to capture the suture to the elongated body, whereby to secure the suture to the bone.