Fig. 5. Graphs showing the measured angle of the scapular motion of reverse total shoulder arthroplasty and contralateral shoulders during scapular plane abduction. (A) There was significant difference in the upward rotation of the scapular motion between both shoulders. However, internal rotation (B) and posterior tilting (C) of the scapular motion were not significantly different between both shoulders. RTSA: reverse total shoulder arthroplasty.