Knotless suture anchoring using two awl shafts
Methods and systems are provided for securing tissue to bone. A surgical system can include a driver having a proximal handle and a driver shaft extending therefrom, a distal awl shaft, a proximal awl shaft separate from the distal awl shaft and movable with respect to the distal awl shaft, a suture anchor, and a dilator feature distal to the suture anchor. The distal and proximal awl shafts are receivable in at least part of a lumen of the driver. In a bone forming configuration of the system, in which the distal awl shaft is driven into bone, a distal end of the proximal awl shaft abuts a proximal end of the distal awl shaft. The proximal awl shaft can be moved proximally, such as by activating an awl handle coupled thereto, with respect to the distal awl shaft to move the system in a suture anchor insertion configuration.
1. A method of performing a surgical repair, comprising:
advancing a distal end of a distal awl shaft into a bone to form a bone hole, a proximal end of the distal awl shaft abutting a distal end of a proximal awl shaft such that the proximal awl shaft applies a load to the proximal end of the distal awl shaft;
after the bone hole has been formed, moving the proximal awl shaft to a retracted configuration such that the distal end of the proximal awl shaft is spaced apart from the proximal end of the distal awl shaft; and
with the proximal awl shaft in the retracted configuration, driving a suture anchor having a suture coupled thereto distally into the bone hole and thereby securing the suture.
2. The method of claim 1 , wherein moving the proximal awl shaft to the retracted configuration comprises activating a handle coupled to a proximal portion of the proximal awl shaft.
3. The method of claim 1 , wherein the distal awl shaft extends through an implantable dilator feature, through the suture anchor positioned proximal to the dilator feature, and through a portion of a driver shaft, and wherein driving the suture anchor distally into the bone hole comprises driving the suture anchor distally towards the dilator feature.
4. The method of claim 1 , further comprising applying tension on a terminal end portion of the suture while the proximal awl shaft is moved to the retracted configuration.
5. The method of claim 1 , wherein the terminal end portion of the suture is passed through a suture retaining feature of the distal awl shaft, through a lumen of the suture anchor, and through at least a portion of a suture retaining feature of the driver shaft, the terminal end portion extending from the driver shaft.