Table 1. UCL thickness measurements and intrarater reliability estimates.

Measurement	Mean (SD) in cm	ICC3,3; (95% CI)	SEM	MDD95
Operator 1
Measurement date 1
Mid-substance	0.49 (0.11)	0.98 (0.96–0.99)	0.045	0.12
Trochlea	0.37 (0.09)	0.97 (0.94–0.99)	0.052	0.14
Measurement date 2
Mid-substance	0.51 (0.07)	0.90 (0.79–0.96)	0.067	0.19
Trochlea	0.34 (0.07)	0.91 (0.82–0.97)	0.059	0.16
Measurement date 3
Mid-substance	0.52 (0.06)	0.91 (0.81–0.97)	0.056	0.15
Trochlea	0.34 (0.08)	0.98 (0.95–0.99)	0.035	0.09
Measurement date 4
Mid-substance	0.54 (0.07)	0.94 (0.87–0.98)	0.050	0.14
Trochlea	0.35 (0.08)	0.99 (0.98–0.99)	0.023	0.07
Measurement date 5
Mid-substance	0.54 (0.06)	0.91 (0.81–0.97)	0.053	0.15
Trochlea	0.31 (0.09)	0.97 (0.94–0.99)	0.043	0.12
Operator 2
Measurement date 1
Mid-substance	0.51 (0.11)	0.97 (0.93–0.99)	0.060	0.17
Trochlea	0.35 (0.13)	0.98 (0.96–0.99)	0.050	0.14
Measurement date 2
Mid-substance	0.51 (0.08)	0.92 (0.83–0.97)	0.071	0.20
Trochlea	0.33 (0.07)	0.95 (0.89–0.98)	0.045	0.13
Measurement date 3
Mid-substance	0.54 (0.08)	0.93 (0.83–0.97)	0.069	0.19
Trochlea	0.32 (0.09)	0.99 (0.97–0.99)	0.030	0.08
Measurement date 4
Mid-substance	0.56 (0.06)	0.91 (0.80–0.96)	0.060	0.17
Trochlea	0.34 (0.07)	0.98 (0.96–0.99)	0.031	0.09
Measurement date 5
Mid-substance	0.54 (0.07)	0.92 (0.83–0.97)	0.061	0.17
Trochlea	0.34 (0.09)	0.93 (0.85–0.97)	0.069	0.19

Notes.

Abbreviations

ICC

intraclass correlation coefficient

SEM

standard error of measurement

MDC

minimal detectable difference

Values in parentheses are 95% confidence interval.