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Table 2 The degree of glenohumeral and scapulohumeral rhythm on operated and contralateral shoulder at 30°, 60°, 90°, 120° of abduction

From: How does scapula motion change after reverse total shoulder arthroplasty? - a preliminary report

Abduction RTSA Normal
G-H S-T G-H S-T
30° 23.8° 0.7° 20.3° 2.0°
60° 39.9° 14.6° 43.8° 8.5°
90° 63.6° 20.9° 68.0° 14.3°
120° 81.0° 33.5° 90.0° 22.3°
  1. RTSA = reverse total shoulder arthroplasty; G-H = glenohumeral motion; S-T = scapulothoracic motion.