Research Article
Lower Limb Loading during Gait in Patients Long Period after Total Hip Arthroplasty Revision
Table 1
Comparison of measured values of the operated and nonoperated limb between groups.
| Variable | Limb | One to 6 years | Six to 11 years | Over 11 years | Significance () | Mean | Mdn | SD | Mean | Mdn | SD | Mean | Mdn | SD | One to 6 yrs versus 6 to 11 yrs | One to 6 yrs versus over 11 yrs | Six to 11 yrs versus over 11 yrs |
| Breaking peak [%] | O | −12.2 | −12.6 | 1.9 | −11.3 | −10.0 | 2.9 | −12.4 | −11.5 | 2.3 | 0.351 | 1.000 | 0.383 | N | −11.9 | −12.4 | 2.3 | −12.6 | −12.3 | 2.0 | −13.0 | −13.1 | 1.8 | 0.758 | 0.351 | 0.535 | Propulsion peak [%] | O | 13.8 | 13.1 | 2.6 | 13.6 | 14.3 | 2.8 | 16.4 | 17.0 | 1.8 | 1.000 | 0.055+ | | N | 13.3 | 14.9 | 5.0 | 15.5 | 16.0 | 2.3 | 16.9 | 17.5 | 2.1 | 0.536 | 0.210+ | 0.318 | First vertical peak [%] | O | 92.2 | 91.5 | 7.1 | 97.3 | 94.0 | 8.0 | 95.7 | 95.6 | 3.1 | 0.299 | 0.299 | 1.000 | N | 101.3 | 98.5 | 7.0 | 98.7 | 98.2 | 5.9 | 97.7 | 100.5 | 4.9 | 0.606 | 0.606 | 0.902 | Second vertical peak [%] | O | 100.1 | 99.5 | 11.6 | 104.1 | 103.9 | 5.2 | 101.7 | 98.7 | 8.7 | 0.470 | 0.758 | 0.318 | N | 108.4 | 109.4 | 10.2 | 103.7 | 101.8 | 8.4 | 104.8 | 106.0 | 4.0 | 0.351 | 0.681 | 0.710 | Minimal vertical force [%] | O | 83.9 | 85.6 | 7.2 | 82.8 | 83.4 | 4.4 | 81.0 | 79.4 | 4.5 | 0.536 | 0.252 | 0.383 | N | 85.0 | 84.9 | 3.8 | 80.4 | 80.5 | 2.3 | 81.1 | 81.6 | 3.9 | | 0.055+ | 1.000 |
| Time of breaking peak [%] | O | 57.1 | 57.0 | 3.9 | 57.0 | 55.3 | 5.8 | 56.3 | 57.5 | 3.7 | 0.758 | 0.837 | 1.000 | N | 58.4 | 54.7 | 9.3 | 54.8 | 54.8 | 2.9 | 56.2 | 56.2 | 3.0 | 0.837 | 0.758 | 0.456 | Time of propulsion peak [%] | O | 42.9 | 43.0 | 3.9 | 43.0 | 44.7 | 5.8 | 43.7 | 42.5 | 3.7 | 0.758 | 0.837 | 1.000 | N | 41.6 | 45.3 | 9.3 | 45.2 | 45.2 | 2.9 | 43.8 | 43.8 | 3.0 | 0.837 | 0.758 | 0.456 | Time of first vertical peak [%] | O | 27.0 | 26.8 | 2.2 | 26.2 | 26.6 | 2.5 | 26.7 | 27.8 | 2.0 | 0.606 | 0.837 | 0.710 | N | 23.4 | 25.1 | 3.5 | 23.2 | 23.2 | 4.2 | 27.3 | 26.1 | 3.8 | 0.606 | 0.114+ | 0.165+ | Time of second vertical peak [%] | O | 75.1 | 74.4 | 2.9 | 73.3 | 72.8 | 3.2 | 75.8 | 74.6 | 2.7 | 0.351 | 0.536 | 0.209+ | N | 76.1 | 75.6 | 1.6 | 76.4 | 76.1 | 1.8 | 76.6 | 75.5 | 2.8 | 0.758 | 0.918 | 0.620 | Time of minimal vertical force [%] | O | 47.2 | 49.3 | 4.8 | 45.9 | 47.4 | 6.9 | 49.9 | 51.2 | 8.0 | 0.918 | 0.210+ | 0.259+ | N | 45.1 | 46.0 | 4.7 | 47.7 | 48.5 | 4.3 | 50.6 | 51.0 | 2.8 | 0.299 | | 0.318 | Stance phase duration [s] | O | 0.763 | 0.730 | 0.088 | 0.653 | 0.646 | 0.052 | 0.725 | 0.679 | 0.094 | | 0.174+ | 0.097+ | N | 0.769 | 0.730 | 0.096 | 0.683 | 0.693 | 0.087 | 0.715 | 0.687 | 0.067 | 0.091+ | 0.174+ | 0.805 |
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SD: standard deviation, Mdn: median, O: operated limb, N: nonoperated limb, + = 0.3 0.5 – medium effect, and = 0.5 – large effect.
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