[Retracted] Effect of Arthroscopic Acromioplasty Combined with Rotator Cuff Repair in the Treatment of Aged Patients with Full-Thickness Rotator Cuff Tear and Rotator Cuff Injury

Table 5

Comparison of morphological parameters of acromion between the two groups before and after surgery ( ± S, °).

Group	CSA		At		LAA		AI		ACEA
	Before surgery	After surgery	Before surgery	After surgery	Before surgery	After surgery	Before surgery	After surgery	Before surgery	After surgery
Study group (n = 42)	42.52 ± 3.63	32.17 ± 2.29^a	32.24 ± 5.47	35.29 ± 4.19^a	67.59 ± 7.84	66.72 ± 5.34^a	0.69 ± 0.09	0.69 ± 0.02^a	18.79 ± 2.41	15.53 ± 2.28^a
Control group (n = 42)	42.37 ± 4.17	33.49 ± 2.18^a	32.15 ± 5.67	34.38 ± 4.27^a	67.83 ± 7.53	66.90 ± 5.41^a	0.69 ± 0.08	0.69 ± 0.01^a	18.63 ± 2.57	16.94 ± 2.71^a
t	0.176	2.706	0.074	0.986	0.143	0.154	0.000	0.000	0.294	2.580
	0.861	0.008	0.941	0.327	0.887	0.878	0.001	1.000	0.769	0.012

Note: “a” is , compared with the same group before operation.