Sliding and locking surgical knot
First Claim
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1. A method for forming a sliding and locking surgical knot, comprising:
- forming a post at a proximal-most end of a filament and a major loop on the post;
threading a distal-most free end of the filament through the major loop to form a minor loop;
coiling the free end of the filament around the major loop after the minor loop has been formed to form at least one coil bisecting the major loop; and
threading the free end of the filament through the minor loop.
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Abstract
The present invention provides a sliding and locking knot that does not require an additional half hitch to lock and suture retaining structures having such a knot. The sliding and locking knot has a low knot profile suitable for use in surgical areas with low clearance and to avoid interference with surrounding tissue. Additionally, the sliding and locking knot maintains suture strength and is easy to form. Also provided are methods for anchoring tissue to a bony structure using the bone anchor and sliding and locking knot of the present invention.
365 Citations
17 Claims
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1. A method for forming a sliding and locking surgical knot, comprising:
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forming a post at a proximal-most end of a filament and a major loop on the post;
threading a distal-most free end of the filament through the major loop to form a minor loop;
coiling the free end of the filament around the major loop after the minor loop has been formed to form at least one coil bisecting the major loop; and
threading the free end of the filament through the minor loop. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A sliding and locking surgical knot, comprising:
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a filament having at a proximal-most end a post including thereon a major loop, minor loop, and at least one coil encircling and bisecting the major loop; and
a distal-most free end of the filament extending from the minor loop;
wherein pulling the free end effects tightening of the at least one coil about the major loop, minor loop, and post to create a knot which can be locked without the necessity for a half hitch. - View Dependent Claims (8, 9, 10)
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11. A suture retaining structure, comprising:
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a body extending between a first leading end and a second trailing end, the body having thereon at least one bone engaging element;
a suture receiving aperture within the body; and
a sliding and locking surgical knot extending from the suture receiving aperture, the sliding and locking knot comprising;
a filament having at a proximal-most end a post including thereon a major loop, minor loop, and at least one coil encircling and bisecting the major loop; and
a distal-most free end of the filament extending from the minor loop;
wherein pulling the free end effects tightening of the at least one coil about the major loop, minor loop, and post to create a knot which can be locked without the necessity for a half hitch.
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12. A method for anchoring tissue to a bony structure, comprising:
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providing a suture retaining structure, comprising a body extending between a first leading end and second trailing end, the body having thereon at least one bone engaging element, a suture receiving aperture within the elongate body, and a sliding and locking surgical knot extending from the suture receiving aperture, the sliding and locking knot comprising a filament having at a proximal-most end a post including thereon a major loop, minor loop, and at least one coil encircling and bisecting the major loop, and a distal-most free end of the filament extending from the minor loop, wherein pulling the free end effects tightening of the at least one coil about the major loop, minor loop, and post to create a knot which can be locked without the necessity for a half hitch;
placing a free end of the tissue through the major loop of the sliding and locking knot;
inserting the suture retaining structure into a bone cavity within the bony structure;
sliding the knot down the post to bring the tissue proximate to the bony structure; and
locking the knot in place. - View Dependent Claims (13, 14)
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15. A method for anchoring tissue to a bony structure, comprising:
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providing a suture retaining structure, comprising a body extending between a first leading end and second trailing end, the body having thereon at least one bone engaging element, and a suture receiving aperture within the elongate body;
threading a suture filament through the suture receiving aperture;
Inserting the suture retaining structure into a bone cavity within the bony structure;
creating a sliding and locking knot by forming a post at a proximal-most end of the filament and a major loop on the post, threading a distal-most free end of the filament through the major loop to form a minor loop, coiling the free end of the filament around the major loop after the minor loop has been formed to form at least one coil bisecting the major loop, and threading the free end of the filament through the minor loop;
placing a free end of a soft tissue through the major loop of the sliding and locking knot;
sliding the knot down the post to bring the tissue proximate to the bony structure; and
locking the knot in place. - View Dependent Claims (16, 17)
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Specification