Table 2.
Preoperative Harris hip scores in the two groups
| Harris hip score | Group O | Group Y | p Value* |
|---|---|---|---|
| Total cases (n = 164) | n = 41 | n = 123 | |
| Total | 60.2 ± 8.3 | 63.1 ± 8.8 | 0.040 |
| Pain | 20.7 ± 4.1 | 22.2 ± 4.7 | 0.084 |
| Gait | 18.9 ± 4.6 | 19.7 ± 5.2 | 0.343 |
| Range of motion | 4.9 ± 0.3 | 5.3 ± 2.5 | 0.339 |
| Daily activity | 11.7 ± 3.0 | 12.4 ± 2.8 | 0.134 |
| Unilateral cases (n = 82) | n = 18 | n = 64 | |
| Total | 61.9 ± 7.9 | 62.2 ± 8.7 | 0.900 |
| Pain | 21.1 ± 4.7 | 21.1 ± 4.0 | 0.988 |
| Gait | 19.2 ± 4.8 | 19.7 ± 5.4 | 0.706 |
| Range of motion | 4.9 ± 0.1 | 5.3 ± 2.7 | 0.546 |
| Daily activity | 12.7 ± 2.0 | 12.4 ± 2.9 | 0.745 |
| Bilateral cases (n = 82) | n = 23 | n = 59 | |
| Total | 58.9 ± 8.6 | 64.2 ± 8.9 | 0.005 |
| Pain | 20.4 ± 3.7 | 23.3 ± 5.2 | 0.016 |
| Gait | 18.7 ± 4.4 | 19.7 ± 5.1 | 0.347 |
| Range of motion | 4.9 ± 0.4 | 5.2 ± 2.2 | 0.531 |
| Daily activity | 11.0 ± 3.5 | 12.4 ± 2.8 | 0.024 |
Values are expressed as mean ± standard deviation; *one-way analysis of variance adjusted for body mass index, followup duration, preoperative joint space width, and joint congruency; Group O = patient 50 years or older; Group Y = patients younger than 50 years.