Table 2. Difference in the mean critical shoulder angle between the osteoarthritis and rotator cuff tear groups was found to be statistically significant (p-value <0.01).

OA: osteoarthritis; RCT: rotator cuff tear; CSA: critical shoulder angle

	Groups	N	Mean	Std. Deviation	t-value	p-value
CSA	OA	45	30.31	1.125	11.170	<0.01
	RCT	55	33.62	1.705