Table 2 Mean Change in WOMAC and RAND-36 General Health Between Measurement Periods
Resurfaced | Non-resurfaced | P value* | |
|---|---|---|---|
Stiffness | |||
Mean Change from preop to 1 year postop (SD) | 24.4 ± 24.5 | 8.3 ± 32.3 | 0.10 |
Mean Change from 1 year to 5 years postop (SD) | 15.5 ± 22.1 | 16.3 ± 24.7 | 0.66 |
Mean Change from 5 years to 10 years postop (SD) | 3.4 ± 33.6 | 15.0 ± 19.4 | 0.35 |
Pain | |||
Mean Change from preop to 1 year postop (SD) | 32.9 ± 18.2 | 34.3 ± 21.5 | 0.83 |
Mean Change from 1 year to 5 years postop (SD) | 3.8 ± 17.7 | 3.1 ± 22.3 | 0.93 |
Mean Change from 5 years to 10 years postop (SD) | 12.7 ± 20.0 | 10.0 ± 12.0 | 0.71 |
Function | |||
Mean Change from preop to 1 year postop (SD) | 24.1 ± 16.6 | 19.5 ± 16.9 | 0.44 |
Mean Change from 1 year to 5 years postop (SD) | −3.8 ± 15.9 | 5.5 ± 19.8 | 0.18 |
Mean Change from 5 years to 10 years postop (SD) | 14.2 ± 17.7 | 14.4 ± 13.6 | 0.98 |
RAND-36 General Health | |||
Mean Change from preop to 1 year postop (SD) | −8.2 ± 17.5 | 5.8 ± 10.6 | 0.02 |
Mean Change from 1 year to 5 years postop (SD) | −3.7 ± 14.4 | −9.0 ± 19.1 | 0.43 |
Mean Change from 5 years to 10 years postop (SD) | −6.0 ± 15.8 | −3.8 ± 15.4 | 0.75 |