Table 1. Humeral and Scapular Positions between RTSA and Contralateral Shoulder at the Starting Position.

Variable	RTSA shoulder (°)	Contralateral shoulder (°)
Humerus
Elevation	7.7 ± 4.2	6.9 ± 3.9
Scapula
Upward rotation	10.5 ± 8.4	11.5 ± 9.1
Internal rotation	31.8 ± 6.2	30.6 ± 6.3
Posterior tilting	−9.4 ± 4.3	−11.1 ± 3.7

Values are presented as mean ± standard deviation.

RTSA: reverse total shoulder arthroplasty.