Assessing the accuracy of arthroscopic and open measurements of the size of rotator cuff tears: A simulation-based study

Figure 1 The ALEX plastic shoulder model. A: The model used for the procedures; B: The shoulder model covered for obstructing direct vision.

Figure 2 Three pattern of supraspinatus tears were created using computer software and were printed on paper with adhesive backing. A: Small U-shaped; B: Larger U-shaped; C: Crescent-type. The dimensions of the tears are reported in Table 1. GT: Greater tuberosity; IS: Infraspinatus; SS: Supraspinatus.