Non-swivel suture anchor for knotless fixation of tissue

Apparatus for securing a suture to a bone, the apparatus comprising:

• a non-swivel suture anchor, comprising:
• a tip component configured to be advanced into a hole within the bone, the tip component comprising:
• a widened end portion that defines an eyelet that is configured to receive the suture;
• a shaft that projects axially from the widened end portion;
• and one or more tip teeth disposed circumferentially around the shaft;
• and
• a cannulated screw configured to secure the tip component within the hole within the bone, the cannulated screw defining a lumen therethrough and defining one or more screw teeth that are arranged circumferentially within the lumen,
• the tip teeth and the screw teeth being configured to engage each other, such that when they are engaged the tip component is not swivelable with respect to the cannulated screw.

A method comprising:

• securing a suture to a bone, using a non-swivel suture anchor, by:
• creating a hole in the bone;
• inserting the suture into an eyelet of a tip component of the non-swivel suture anchor;
• advancing the tip component into the hole, the tip component including:
• a widened end portion that defines the eyelet, and
• a shaft that projects axially from the widened end portion, the shaft defining a widened shaft portion proximate to the widened end portion, the widened shaft portion being wider a remainder of the shaft and being narrower than the widened end portion;
• and
• securing the tip component within the hole by advancing a cannulated screw over the shaft of the tip component, the cannulated screw defining a lumen therethrough that is sized such that as the cannulated screw is advanced over the widened shaft portion, the inner surface of the cannulated screw engages the widened shaft portion.