Table 1 Consistency of measurement by two independent physicians
Measurement parameter | Sample size | Physician 1 | Physician 2 | ICC (95% confidence interval) |
|---|---|---|---|---|
Surgical window | 744 | 14.47 ± 5.50 | 14.59 ± 5.53 | 0.995 (0.994–0.996) |
Psoas thickness | 744 | 30.45 ± 6.49 | 30.52 ± 6.49 | 0.991 (0.990–0.992) |
Insertion angle | 744 | 46.60 ± 7.76 | 46.64 ± 7.80 | 0.989 (0.988–0.991) |
Upper endplate transverse diameter | 744 | 51.81 ± 4.47 | 51.79 ± 4.49 | 0.986 (0.983–0.988) |
Distance D | 744 | 13.29 ± 2.99 | 13.24 ± 3.03 | 0.971 (0.969–0.975) |