Half pipe cannula for shoulder arthroscopy

Shoulder arthroscopy makes it possible to diagnose and to reconstruct diffe rent pathologies. This article describes the use of a half pipe cannula or changing instruments in shoulder arthroscopy without using a closed cannula system. The use of this new device is not an alternative to standard cannu la systems, but it is very helpful for changing different arthroscopic inst ruments without altering the soft tissues, thus minimizing postoperative sw elling.