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Table 8 Summary of intrarater and interrater reliability of ACEA and GTA (LOA: limits of agreement, ICC: intraclass correlation coefficient)

From: Correlation between full-thickness degenerative supraspinatus tear and radiographic parameters including the acromiohumeral centre edge angle and the greater tuberosity angle

Parameters

Intraobserver reliability

Interobserver reliability

Mean ± SD (°)

95% LOA (°)

ICC (%)

Mean ± SD (°)

95% LOA (°)

ICC (%)

ACEA

-0.94 ± 3.2

-7.16 to 5.27

95

-0.27 ± 4.37

-8.84 to 8.283

91

GTA

0.60 ± 2.0

-3.34 to 4.53

94

-0.77 ± 2.75

-6.15 to 4.61

89