24. The anchor assembly of claim 18 wherein said peripheral wall is roof shaped.
18. An anchor assembly comprising: an anchor body; an anchor head including a first arm and a second arm extending substantially parallel to one another and away from the anchor body, the first arm and the second arm separated by a gap; a shaft connected to the first arm and the second arm across the gap; a saddle having a longitudinal bore, a transverse bore which intersects the longitudinal bore, and a member capture opening; said transverse bore of said saddle being mounted about said shaft; said saddle including a peripheral wall and an end located distally from said anchor; said saddle including a member capture opening that is provided through said peripheral wall and opens to said distal end; wherein the member capture opening is adapted to receive a member, and wherein the member capture opening intersects the longitudinal bore; a set screw received by said saddle in said longitudinal bore and adapted to lock the member in said saddle; and said saddle including reinforced walls that prevent said saddle splaying when said set screw locks the member in said saddle.