1) Barber, F. A., et al.: The relationship of suture anchor failure and bone density to proximal humerus location: a cadaveric study. Arthroscopy, 13: 340-345, 1997.
2) Brady, P. C., Arrigoni, P., Burkhart, S. S.: What do you do when you have a loose screw?. Arthroscopy, 22: 925-930, 2006.
3) Cadet, E. R., et al.: The relationship between greater tuberosity osteopenia and the chronicity of rotator cuff tears. J. Shoulder Elbow Surg., 17: 73-77, 2008.
4) Chlodwig, K., et al.: Assessment of bone quality within the tuberosities of the osteoporotic humeral head. Am. J. Sports Med., 38: 564-569, 2010.
5) Eric, S., et al.: The effect of angle of suture anchor insertion on fixation failure at the tendon-suture interface after rotator cuff repair: Deadman's angle revisited. Arthroscopy, 25: 597-602, 2009.