Surgical fastening
Methods of joint repair employing sutures and attached fixation devices are discussed. For example, a bone block graft procedure (e.g., Latarjet) is discussed which employs fixation devices to secure contact between graft surfaces of two bones. A suture construct, including a continuous suture loop routed through a first fastener, is secured to a first bone. Looped ends of the suture loop are passed through passageways formed in the two bones. The looped suture ends are further routed through a second fastener. The second fastener is mounted to the second bone and a sliding knot, formed in the looped suture ends, is advanced into contact with the second fastener. The suture is further tensioned using a tensioner device to secure the two bones together.
1. A surgical fastener comprising:
a generally circular body having a convex first surface, a concave second surface opposite the first surface, and a pair of first through holes extending through the body from the first surface to the second surface, the pair of first through holes being symmetrically offset from a center of the first surface; and
a generally cylindrical post defining an outer curved surface, the post comprising:
a first end, a second end, and a longitudinal axis extending between the first and second ends, the longitudinal axis being perpendicular to the second surface of the body, the first end of the post being coupled to a center of the second surface; and
a second through hole formed in the post transverse to the longitudinal axis;
wherein each of the pair of first through holes extends at least partially through opposing sides of the curved surface of the post parallel to the longitudinal axis, thus forming semi-circular passages for accommodating a suture therethrough.
2. The surgical fastener of claim 1 , wherein the surgical fastener comprises a material selected from the group of metals, absorbable materials, and collagen based materials.
3. The surgical fastener of claim 2 , wherein the collagen-based materials include biological elements to promote healing.
4. The surgical fastener of claim 1 , wherein a diameter of the first surface is about 14 mm.
5. The surgical fastener of claim 1 , wherein a diameter of the post is selected to be smaller than a diameter of the body.
6. The surgical fastener of claim 1 , wherein a diameter of the post is selected to be larger than a distance between the pair of first through holes.
7. The surgical fastener of claim 1 , wherein the post is axially coincident with a portion of each of the pair of first through holes.
8. The surgical fastener of claim 1 , wherein the second end of the post comprises one or more chamfered surfaces to aid in insertion of the post.
9. A suture construct comprising:
a generally circular body having a convex first surface, a concave second surface opposite the first surface, and a pair of first through holes extending through the body from the first surface to the second surface, the pair of first through holes being symmetrically offset from a center of the first surface;
a generally cylindrical post defining an outer curved surface, the post comprising:
a first end, a second end, and a longitudinal axis extending between the first and second ends, the longitudinal axis being perpendicular to the second surface of the body, the first end of the post being coupled to a center of the second surface; and
a second through hole formed in the post transverse to the longitudinal axis; and
a suture, the suture being formed in continuous suture loop having two free ends;
wherein the continuous suture loop is routed through either the pair of first through holes of the body or the second through hole of the post, such that two free ends extend from the second surface of the body.
10. The suture construct of claim 9 , wherein the suture comprises a high-strength polyethylene or a metallic wire.
11. The suture construct of claim 9 , wherein the suture loop is passed through one of the pair of first through holes along the first surface and back through the other one of the pair of first through holes.
12. The suture construct of claim 9 , wherein the two free ends of the suture loop are spliced together.
13. The suture construct of claim 9 , Wherein the surgical fastener comprises a material selected from the group of metals, absorbable materials, and collagen-based materials.
14. The suture construct of claim 9 , wherein a diameter of the first surface is about 14 mm.
15. The suture construct of claim 9 , wherein a diameter of the post is selected to be smaller than a diameter of the body.
16. The suture construct of claim 9 , wherein a diameter of the post is selected to be larger than a distance between the pair of first through holes.
17. The suture construct of claim 9 , wherein the post is axially coincident with a portion of each of the pair of first through holes.
18. The suture construct of claim 9 , Wherein each of the pair of first through holes extends at least partially through opposing sides of the curved surface of the post parallel to the longitudinal axis, thus forming semi-circular passages for accommodating a suture therethrough.
19. The suture construct of claim 9 , wherein the second end of the post comprises one or more chamfered surfaces to aid in insertion of the post.