Multi-Strand Knotless Tensionable Fixation System and Related Methods

A method of securing one or more objects with a multi-strand tensionable fixation system, comprising:

• positioning a multi-strand tensionable fixation system near one or more target objects to be secured under tension, the multi-strand tensionable fixation system comprising:
• a plurality of tensionable fixation members, each tensionable fixation member of the plurality of tensionable fixation members having at least one free end and a target engagement portion;
• a base member having a proximal surface, a distal surface, a laterally facing perimeter surface, a central opening extending between the proximal and distal surface, a first locking interface feature positioned on the proximal surface, and a plurality of provisional locking cleats formed within the proximal surface, each provisional locking cleat of said plurality of provisional locking cleats configured to hold fast an associated one of said plurality of tensionable fixation members extending between the provisional locking cleat and a target object under tension;
• a locking element having a proximal surface, a distal surface, a central opening extending between the proximal and distal surfaces, and a second locking interface feature positioned on the distal surface;
• a compression member a compression member configured to extend through the central opening of the locking element and into the central opening of the base member, the compression member having a radial flange configured to engage the proximal surface of the locking element;
• engaging a first target object of said one or more target objects with a target engagement portion of a first tensionable fixation member of said plurality of tensionable fixation members;
• provisionally securing a first free end of said first tensionable fixation member within a first provisional locking cleat of said plurality of provisional locking cleats;
• provisionally securing a second free end of said first tensionable fixation member within a second provisional locking cleat of said plurality of provisional locking cleats;
• engaging a second target object of said one or more target objects with a target engagement portion of a second tensionable fixation member of said plurality of tensionable fixation members;
• provisionally securing a first free end of said second tensionable fixation member within a third provisional locking cleat of said plurality of provisional locking cleats;
• provisionally securing a second free end of said second tensionable fixation member within a fourth provisional locking cleat of said plurality of provisional locking cleats;
• positioning the locking element on the base member such that the provisionally secured first and second free ends of said first tensionable fixation member and first and second free ends of said second tensionable fixation member are positioned between the first locking interface feature of the base member and the second locking interface feature of the locking element;
• and
• advancing the compression member through the central opening of the locking element and into the central opening of the base member such that the radial flange contacts the proximal surface of the locking element;
• and
• actuating the compression member such that the compression member translates distally within the central opening of the base member and the radial flange exerts a compressive force on the engaged proximal surface of the locking element, thereby causing the provisionally secured first and second free ends of said first tensionable fixation member and first and second free ends of said second tensionable fixation member to be pinched between the first locking interface feature of the base member and the second locking interface feature of the locking element to achieve a final locked state.