Dr. Clara Azevedo Orator and Trainer of the “Hands-on Shoulder and elbow Instability advanced course”, of the International Program of Postgraduate Courses, University of Minho School of Health Science, in collaboration with Life and Health Sciences Research Institute (ICVS) on 13th of May 2016 (Friday), integrated in the program of the XI Symposium of the Shoulder and Elbow of the SOPT, which will be held at the Hospital de Braga: Theme: Acromioclavicular Joint, basic considerations.