Fig. 5From: Angle of approach to the superior rotator cuff of arthroscopic instruments depends on the acromial morphology: an experimental study in 3D printed human shouldersAngles of approach (°) to the supraglenoid tubercle from the arthroscopic portals in shoulders (n = 7). Larger angles were obtained from the anterior portals (98–121° vs. 59–98°)Back to article page