| TriathlonTM TKA (mean- range, SD) |
NexgenTM TKA (mean- range, SD) |
p value* | Asymptomatic knees (mean - range, SD) |
p value* | |
|---|---|---|---|---|---|
| Sagittal plane | |||||
| Total ROM (°) | 47.1 (39.1- 56.6, 6.5) |
48.2 (40.7 - 60.8, 6.0) |
0.4 | 55.4 (40.3 – 68.8, 5.3) |
0.001 |
| Stance phase ROM (°) | 15.3 (6.9 - 29.6, 5.6) |
13.6 9.2 - 23.6, 4.6) |
0.4 | 17.4 (10.6 – 25.7, 4.1) |
0.03 |
| Swing phase ROM (°) | 41.9 (30.9 - 51.0, 5.8) |
43.9 35.9 - 59.2, 6.9) |
0.1 | 51.1 (35.6 – 60.0, 5.8) |
0.001 |
| Peak knee flexion (°) | 50.4 (34.7 - 70.6, 8.4) |
52.8 (36.0 - 61.6, 8.7) |
0.3 | 57.6 (45.8 – 67.2, 4.6) |
0.003 |
| Frontal plane (positive values = varus) | |||||
| Total ROM (°) | 10.1 (4.4 - 18.7, 4.2) |
9.6 (6.1 - 18.8, 3.3) |
0.6 | 9.9 (4.6 – 19.6, 3.5) |
0.9 |
| Stance phase ROM (°) | 4.6 (2.0 - 8.3, 2.0) |
4.7 (1.7 - 7.4, 1.4) |
0.7 | 5.4 (1.3 – 13.3, 2.4) |
0.4 |
| Swing phase ROM (°) | 9.0 (4.4 - 14.6, 3.5) |
8.6 (4.9 - 16.8, 2.9) |
0.7 | 9.0 (3.3 – 17.2, 3.2) |
0.9 |
| Peak stance angle (°) | 4.9 (-3.5 - 11.5, 4.9) |
6.6 (-5.5 - 14.1, 6.1) |
0.3 | 3.4 (-1.0 – 10.2, 3.0) |
0.05 |
| Peak swing angle (°) | 9.0 (0.2 -15.3, 4.9) |
9.2 (-1.5 - 25.8, 7.3) |
0.9 | 3.6 (-2.0 – 11.5, 3.7) |
0.001 |
| ROM IC – max mid stance (°) | 0.4 (-1.4 - 2.4, 1.2) |
1.6 (-0.3 - 5.2, 2.0) |
0.03 | 1.1 (-2.0 – 3.9, 1.3) |
0.1 |
| Δ mean mid stance – IC (°) | -0.4 (-1.8 - 1.0, 1.1) |
0.8 (-1.3 - 4.7, 2.0) |
0.02 | 0.3 (-3.2 – 2.4, 1.4) |
0.1 |
| Transverse plane (positive values = external tibial rotation) | |||||
| Total ROM (°) | 12.7 (6.5 - 27.5, 5.6) |
10.9 (5.5 - 15.0, 3.1) |
0.2 | 12.6 (7.3 – 29.6, 4.8) |
0.5 |
| Stance phase ROM (°) | 8.5 (3.4 - 22.8, 4.9) |
6.7 (3.5 - 12.4, 3.2) |
0.2 | 8.9 (4.1 – 17.8, 3.3) |
0.2 |
| Swing phase ROM (°) | 11.8 (5.7 - 27.5, 6.0) |
10.1 (5.4 - 14.3, 3.3) |
0.2 | 10.9 (3.4 – 26.4 , 4.6) |
0.6 |
| Peak stance internal rotation (°) | 2.9 (-5.0 – 14.4, 5.1) |
1.9 (-3.4 – 11.7, 4.3) |
0.6 | 4.5 (0.5 – 15.3,3.1) |
0.1 |