Surgical implant system and method

Abstract

A spinal construct comprises a member extending between a first end and a second end and includes a first layer and a second layer. The first layer includes a plurality of interlaced strands that define a first angle. The second layer includes a plurality of interlaced strands that define a second angle. The first angle is smaller than the second angle. Systems, implants, surgical instruments and methods are disclosed.

1 - 20 . (canceled) 
     
     
         21 . A method comprising:
 positioning a tether into cavities of spaced apart first and second fasteners; and   engaging a first set screw with the first fastener and engaging a second set screw with the second fastener such that the set screws engage the tether,   wherein the tether extends between a first end and a second end and includes a first layer and a second layer, the first layer including a plurality of interlaced strands that define a first angle, and the second layer including a plurality of interlaced strands that define a second angle, the first angle being smaller than the second angle, the tether having the same physical characteristics along the entire length of the tether.   
     
     
         22 . The method recited in  claim 21 , wherein the set screws engage the tether such that penetrating elements of the set screws contact the tether. 
     
     
         23 . The method recited in  claim 21 , wherein the set screws engage the tether such that penetrating elements of the set screws contact the tether to separate the first layer from the second layer. 
     
     
         24 . The method recited in  claim 21 , wherein the set screws engage the tether such that penetrating elements of the set screws contact the tether to compress the first and second layers. 
     
     
         25 . The method recited in  claim 21 , wherein the set screws engage the tether such that penetrating elements of the set screws partially penetrate the tether. 
     
     
         26 . The method recited in  claim 21 , wherein the set screws engage the tether such that penetrating elements of the set screws partially penetrate the tether to separate the first layer from the second layer. 
     
     
         27 . The method recited in  claim 21 , wherein the set screws engage the tether such that penetrating elements of the set screws partially penetrate the tether to compress the first and second layers. 
     
     
         28 . The method recited in  claim 21 , wherein the set screws engage the tether such that penetrating elements of the set screws crimp the tether such that the penetrating elements extend completely through the tether. 
     
     
         29 . The method recited in  claim 21 , wherein the set screws engage the tether such that penetrating elements of the set screws crimp the tether such that the penetrating elements extend completely through the tether and into cannulations of the fasteners. 
     
     
         30 . The method recited in  claim 21 , wherein the set screws engage the tether such that translation of the tether relative to the fasteners is prevented. 
     
     
         31 . A method comprising:
 positioning a tether into cavities of spaced apart first and second fasteners; and   engaging a first set screw with the first fastener and engaging a second set screw with the second fastener such that the set screws engage the tether,   wherein the tether comprises an inner braid including a plurality of carriers oriented to define a first angle in a range of 15 through 65 degrees and 1 through 25 picks per inch, the tether comprising an outer braid including a plurality of carriers oriented to define a second angle in a range of 35 through 90 degrees and 15 through 35 picks per inch, the tether having the same physical characteristics along the entire length of the tether.   
     
     
         32 . The method recited in  claim 31 , wherein the set screws engage the tether such that penetrating elements of the set screws contact the tether. 
     
     
         33 . The method recited in  claim 31 , wherein the set screws engage the tether such that penetrating elements of the set screws contact the tether to separate the carriers of the inner braid from the carriers of the outer braid. 
     
     
         34 . The method recited in  claim 31 , wherein the set screws engage the tether such that penetrating elements of the set screws contact the tether to compress the carriers of the inner braid and the carriers of the outer braid. 
     
     
         35 . The method recited in  claim 31 , wherein the set screws engage the tether such that penetrating elements of the set screws partially penetrate the tether. 
     
     
         36 . The method recited in  claim 31 , wherein the set screws engage the tether such that penetrating elements of the set screws crimp the tether such that the penetrating elements extend completely through the tether. 
     
     
         37 . The method recited in  claim 31 , wherein the set screws engage the tether such that penetrating elements of the set screws crimp the tether such that the penetrating elements extend completely through the tether and into cannulations of the fasteners. 
     
     
         38 . The method recited in  claim 31 , wherein the set screws engage the tether such that translation of the tether relative to the fasteners is prevented. 
     
     
         39 . A method comprising:
 positioning a tether into a cavity of a bone fastener; and   engaging a set screw with the bone fastener such that the set screw engages the tether,   wherein the tether extends between a first end and a second end and includes a first layer and a second layer, the first layer including a plurality of interlaced strands that define a first angle, and the second layer including a plurality of interlaced strands that define a second angle, the first angle being smaller than the second angle, the tether having the same physical characteristics along the entire length of the tether.   
     
     
         40 . The method recited in  claim 39 , wherein the set screw engages the tether such that a penetrating element of the set screw contacts the tether to separate the first layer from the second layer.