Table 4.
Comparison of hip Joint Kinematic and Kinetic Variables During Gait Between Baseline and 1 Year Postoperatively a
| Baseline | 1-y Postop | P | |
|---|---|---|---|
| Peak joint angle, deg | |||
| Flexion | 21.5 ± 7.9 | 24.0 ± 5.9 | .30 |
| Extension | −17.0 ± 7.1 | −15.5 ± 6.4 | .27 |
| Adduction | 7.8 ± 2.5 | 6.4 ± 2.5 | .062 |
| Abduction | −2.3 ± 1.8 | −4.6 ± 1.8 | .0058 |
| IR | 5.5 ± 5.8 | 4.6 ± 5.8 | .62 |
| ER | −5.5 ± 6.5 | −8.9 ± 3.4 | .0504 |
| Peak joint moment, N·m/kg | |||
| Flexion | 0.59 ± 0.16 | 0.66 ± 0.13 | .32 |
| Extension | −1.03 ± 0.19 | −0.85 ± 0.20 | .014 |
| Adduction | 0.10 ± 0.05 | 0.08 ± 0.05 | .43 |
| Abduction | −1.04 ± 0.21 | −1.00 ± 0.11 | .46 |
| IR | 0.13 ± 0.07 | 0.14 ± 0.08 | .92 |
| ER | −0.17 ± 0.08 | −0.16 ± 0.06 | .84 |
a Boldface P values indicate statistically significant difference (P < .05, paired t test). ER, external rotation; IR, internal rotation; Postop, postoperatively.