Limited sliding suture in suture anchor
Tensionable systems, devices, and methods for tissue repairs. A fixation device has a post and a flexible strand which passes around the post and is provided with one stop member on one side of the post, or with two stop members, one on each side of the post. Stop members allow a flexible strand to slide around the post and become fixed for approximation of tissue to tissue and tensioning.
1. A surgical construct for tissue repairs, comprising:
a fixation device comprising a body, a longitudinal axis, a proximal end, a distal end, a post located at the distal end, at least a portion of the body being cannulated; and
a tensionable construct pre-loaded on the fixation device, the tensionable construct comprising a flexible strand and two stop members attached to the flexible strand, the tensionable construct extending through the body of the fixation device, the two stop members being positioned each on either side of the post and statically spaced apart from one another,
at least one of the two stop members is located within the body of the fixation device and is sized to abut the post when the tensionable construct is tensioned, thereby limiting sliding of the flexible strand through the body of the fixation device.
2. The surgical construct of claim 1 , wherein the post extends in a direction about transversal to the longitudinal axis of the body, and wherein the two stop members allow limited sliding of the flexible strand through the body of the fixation device and around the post.
3. The surgical construct of claim 1 , wherein the flexible strand is a suture formed of ultrahigh molecular weight polyethylene.
4. The surgical construct of claim 1 , wherein the two stop members are selected from the group consisting of knots, protrusions, protuberances, beads, spheres, inserts, splices and tags.
5. The surgical construct of claim 1 , wherein the two stop members comprise suture knots.
6. The surgical construct of claim 1 , wherein the fixation device is an anchor with an anchor body provided with a plurality of circumferential ribs extending from an outer surface of the anchor body.
7. The surgical construct of claim 1 , wherein both of the two stop members are located within the body of the fixation device.
8. The surgical construct of claim 1 , wherein the at least one stop member has at least one dimension that is larger than a channel defined between the post and the body of the fixation device.
9. The surgical construct of claim 1 , wherein the other of the two stop members is attached to the flexible strand spaced from the at least one stop member to define a sliding distance therebetween, wherein sliding of the flexible strand through the body of the fixation device for a distance greater than the sliding distance is prevented.
10. The surgical construct of claim 1 , wherein the flexible strand is a suture having at least one limb, the limb being configured to be fixed to another fixation device.