Oh JH, et al. - Researchers assessed the pullout strength of the all-suture anchor (ASA), based on the angles of anchor insertion and traction. In higher density bones, stronger pullout strength was demonstrated by ASA. Moreover, in the physiological traction direction of supraspinatus, ASA presented stronger pullout strength rather than in the knot-tying direction, consistent with the deadman theory. However, stronger pullout strength was observed in the vertically directed insertion angle vs 45°. Results showed a greater clinical benefit of implanting the ASA vertically not only when performing knot-tying during surgery, but also when the supraspinatus tendon loads the ASA postoperatively.