Table 6.
Results of isokinetic strength measurement of the operated hip
| Peak torque | Non-ERAS (n = 12) | ERAS (n = 12) | Statistical difference | |
|---|---|---|---|---|
| (Nm), mean ± SD | p-value | |||
| 60°/s flexion | PRE-OP | 38.63 ± 18.53 | 29.13 ± 17.51 | 0.21 |
| 5 d POST-OP | 17.98 ± 7.88 | 33.22 ± 15.45 | 0.008 | |
| 4 w POST-OP | 30.35 ± 11.64 | 51.23 ± 21.55 | 0.009 | |
| 60°/s extension | PRE-OP | 40.22 ± 18.87 | 41.01 ± 29.67 | 0.94 |
| 5 d POST-OP | 21.88 ± 15.81 | 42.67 ± 21.51 | 0.013 | |
| 4 w POST-OP | 41.49 ± 17.81 | 71.64 ± 33.97 | 0.015 | |
| 30°/s abduction | PRE-OP | 33.08 ± 18.92 | 19.06 ± 9.47 | 0.16 |
| 5 d POST-OP | 20.81 ± 11.36 | 25.19 ± 8.54 | 0.3 | |
| 4 w POST-OP | 26.6 ± 11.63 | 38.65 ± 14.5 | 0.035 | |
| 30°/s adduction | PRE-OP | 25.42 ± 15.79 | 20.52 ± 14.45 | 0.48 |
| 5 d POST-OP | 16.13 ± 6.8 | 27.81 ± 11.64 | 0.008 | |
| 4 w POST-OP | 24.72 ± 10.65 | 39.9 ± 17.77 | 0.021 | |
| Overall Work (J) | ||||
| 60°/s flexion | PRE-OP | 144.51 ± 97.26 | 108.38 ± 85.25 | 0.34 |
| 5 d POST-OP | 36.11 ± 24.11 | 103.87 ± 57.12 | 0.002 | |
| 4 w POST-OP | 101.11 ± 59.09 | 230.04 ± 116.05 | 0.003 | |
| 60°/s extension | PRE-OP | 179.43 ± 104.25 | 171.13 ± 157.67 | 0.99 |
| 5 d POST-OP | 55.76 ± 55.95 | 198.01 ± 144.21 | 0.001 | |
| 4 w POST-OP | 161.94 ± 94.59 | 399.83 ± 222.76 | 0.001 | |
| 30°/s abduction | PRE-OP | 49.56 ± 43.71 | 21.13 ± 15.94 | 0.11 |
| 5 d POST-OP | 21.28 ± 14.14 | 35.28 ± 16.19 | 0.034 | |
| 4 w POST-OP | 40.35 ± 21.47 | 70.83 ± 35.79 | 0.019 | |
| 30°/s adduction | PRE-OP | 39.18 ± 32.45 | 28.44 ± 29.44 | 0.24 |
| 5 d POST-OP | 17.72 ± 10.01 | 42.54 ± 20.36 | 0.002 | |
| 4 w POST-OP | 36.85 ± 19.41 | 85.24 ± 51.03 | 0.008 | |
| Power (Watt) | ||||
| 60°/s flexion | PRE-OP | 16.32 ± 9.78 | 13.44 ± 10 | 0.48 |
| 5 d POST-OP | 5.36 ± 3.3 | 12.5 ± 6.4 | 0.002 | |
| 4 w POST-OP | 13.22 ± 6.31 | 23.76 ± 11.29 | 0.012 | |
| 60°/s extension | PRE-OP | 17.34 ± 10.38 | 18.8 ± 16.74 | 0.99 |
| 5 d POST-OP | 6.9 ± 6.07 | 21.22 ± 14.24 | 0.003 | |
| 4 w POST-OP | 19.04 ± 9.32 | 38.46 ± 21.19 | 0.002 | |
| 30°/s abduction | PRE-OP | 7.06 ± 6.02 | 3.13 ± 2.12 | 0.11 |
| 5 d POST-OP | 3.69 ± 2.18 | 5.36 ± 2.39 | 0.09 | |
| 4 w POST-OP | 5.71 ± 2.77 | 9.28 ± 4.33 | 0.006 | |
| 30°/s adduction | PRE-OP | 4.98 ± 4.19 | 3.93 ± 3.78 | 0.45 |
| 5 d POST-OP | 2.92 ± 1.36 | 6.08 ± 2.97 | 0.004 | |
| 4 w POST-OP | 5.14 ± 2.25 | 10.64 ± 5.91 | 0.009 | |
| Variation coefficient | ||||
| 60°/s flexion | PRE-OP | 27.77 ± 17.59 | 33.72 ± 26.97 | 0.53 |
| 5 d POST-OP | 41.55 ± 13.13 | 31.58 ± 15.58 | 0.1 | |
| 4 w POST-OP | 19.81 ± 9.61 | 22.73 ± 10.66 | 0.49 | |
| 60°/s extension | PRE-OP | 23.33 ± 19.4 | 28.48 ± 25.37 | 0.93 |
| 5 d POST-OP | 24.83 ± 9.06 | 11.19 ± 5.86 | < 0.001 | |
| 4 w POST-OP | 17.82 ± 10.32 | 10.49 ± 7.06 | 0.05 | |
| 30°/s abduction | PRE-OP | 27.56 ± 18.44 | 29.27 ± 19.02 | 0.89 |
| 5 d POST-OP | 28.28 ± 20.83 | 23.35 ± 10.41 | 0.93 | |
| 4 w POST-OP | 17.86 ± 8 | 15.23 ± 6.66 | 0.99 | |
| 30°/s adduction | PRE-OP | 22.17 ± 13.81 | 18.38 ± 10.94 | 0.47 |
| 5 d POST-OP | 24.73 ± 20.57 | 13.78 ± 4.65 | 0.18 | |
| 4 w POST-OP | 18.63 ± 10.32 | 10.98 ± 5.74 | 0.045 | |
| Active range of motion (°) | ||||
| Flexion / Extension | PRE-OP | 94.23 ± 19.29 | 83.89 ± 28.01 | 0.30 |
| 5 d POST-OP | 61.24 ± 16.64 | 88.06 ± 15.8 | 0.001 | |
| 4 w POST-OP | 77.83 ± 13.1 | 106.21 ± 13.13 | < 0.001 | |
| Abduction / Adduction | PRE-OP | 36.23 ± 7.74 | 27.53 ± 10.22 | 0.028 |
| 5 d POST-OP | 27.12 ± 4.62 | 33.72 ± 5.79 | 0.005 | |
| 4 w POST-OP | 35.33 ± 6.02 | 40.46 ± 7.52 | 0.08 | |