Theme issue shoulder instability

reconstructive surgery, 3D CT reconstructions and the possibility to make animations that can mimic the effect of the location of the Hill–Sachs lesion. It was also the time where the indication for stabilizing surgery was at least six dislocations and that open procedures had a low failure rate but also in some cases with a significant reduction in external rotation. Other open procedures like Bristow–Latarjet were known to have low recurrence rate but showed the same risk of reducing the ability to fully externally rotate the arm overhead, which is a disadvantage for the active overhead athlete. In the 1990s arthroscopic repair became more and more popular possibly due to the fact that the pathology could be assessed more precisely and because the repair aimed at being more anatomic, but at the very end of the last century, the drawback was initially associated with a recurrence rate of over 30 %. Today, we know that the number of recurrences not only increases the risk of osteoarthritis but also makes simple arthroscopic Bankart repair less effective. During the past 15 years, we have been moving from a discussion between open Bankart and arthroscopic When we were young residents, we were taught that a Hill–Sachs lesion of the humeral head was a normal finding in glenohumeral instability and that it had no clinical significance. This was before MR technology, arthroscopic