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Acromioclavicular joint (ACJ) dislocations represent one of the most common lesions in the shoulder. Arthroscopic reduction and ACJ fixation with the button system is one of the most used techniques for displaced and unstable dislocations. Difficulties with placing the tunnels in the central and correct position of the clavicular and coracoid can occur with the use of a guide, which can result in fractures, eccentric tunnel position, cortical rupture, prolongation of surgical times with its complications as bleeding, tissue infiltration, difficult visualization, and increased risk of infection. Prior free hand central tunnel placement in the clavicle with a 3.2 mm drill helps to keep in place the pin guide over the superior cortical of coracoid with reduction of guide movement to enhance the correct position of tunnel in the coracoid process avoiding bone complications.

Free Hand Drilling Technique to Enhance Central Position of Tunnels in Arthroscopic Acromioclavicular Joint Fixation Using TightRope System