Table 2.

Intra-observer reliability

	CSA	AGA	AT	GIA
ICC (95% CI)	0.961 (0.936, 0.976)	0.960(0.932, 0.976)	0.965(0.943, 0.979)	0.962(0.939, 0.977)

AT acromial tilt, CSA critical shoulder angle, AGA acromioglenoid angle, GIA glenoid inclination angle