Table 4 Ability to identify “instability” using N-U, F-E and N-sMR methods
N-U, n (%) | F-E, n (%) | N-sMR, n (%) | P Value | |
|---|---|---|---|---|
Translational motion > 8% (translational instability) | ||||
Group S | 8(25.8%) | 7(22.6%) | 26(83.9%) | < 0.001* |
Group M | 13(27.6%) | 15(31.9%) | 11(23.4%) | 0.73 |
Angular motion ≥ 10° (angular instability) | ||||
Group S | 10(32.3%) | 7(22.6%) | 28(90.3%) | < 0.001* |
Group M | 16(34.0%) | 18(38.3%) | 14(29.8%) | 0.75 |