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. 2018 Jan 3;13:1. doi: 10.1186/s13018-017-0693-x

Fig. 2.

Fig. 2

The sonographic image showed the greatest longitudinal tear along the long axis of the rotator cuff tendon and muscle in the modified Crass position. The tear size was measured by the greatest longitudinal tear length (red line) in several longitudinal sections of rotator cuff