Pre-tied surgical knots for use with suture passers

A suture having a pre-tied knot, the suture comprising:

• an elongate flexible length of suture material having a first end and a second end;
• a pre-tied knot body formed from the suture material at a region near the first end of the suture, the pre-tied knot body having one or more loops of the suture material, wherein each loop has at least one crossing point;
• and
• a leader snare formed of a length of linear and flexible material, wherein the pre-tied knot body is tied around the leader snare so that the leader snare passes through the one or more loops of the knot body, wherein a bight region of the leader snare extends from a first end of the knot body and a pull tail extends from a second end of the knot body, wherein the material forming the leader snare has a larger diameter than the suture material of the elongated flexible length of suture material,
• wherein the knot body and leader snare are sufficiently flexible and narrow of profile to be pulled through a tissue behind a tissue penetrator.