Questionnaire results of direct anterior and direct lateral groups
| Questionnaire | Mean score (range) | p value | |
|---|---|---|---|
| Direct anterior | Direct lateral | ||
| SF-12 mental | |||
| Pre-operation | 55.31 (36.52–69.32) | 56.53 (26.19–70.35) | 0.549 |
| 3 mo postoperation | 58.27 (39.97–66.94) | 57.82 (32.55–67.15) | 0.769 |
| 1 yr postoperation | 57.59 (35.38–67.37) | 56.46 (27.55–64) | 0.506 |
| SF-12 physical | |||
| Pre-operation | 33.50 (20.44–57.29) | 33.47 (17.54–52.78) | 0.992 |
| 3 mo postoperation | 48.00 (28.49–59.11) | 46.40 (30.67–56.82) | 0.454 |
| 1 yr postoperation | 51.59 (23.36–59.78) | 51.81 (34.34–58.56) | 0.918 |
| WOMAC pain | |||
| Pre-operation | 52.35 (25–100) | 49.64 (30–75) | 0.466 |
| 3 mo postoperation | 87.61 (55–100) | 88.13 (60–100) | 0.878 |
| 1 yr postoperation | 92.33 (30–100) | 97.61 (85–100) | 0.118 |
| WOMAC function | |||
| Pre-operation | 48.47 (11.76–89.71) | 51.94 (25–98.5) | 0.411 |
| 3 mo postoperation | 86.35 (45.59–100) | 86.03 (58.82–100) | 0.923 |
| 1 yr postoperation | 93.09 (27.94–100) | 94.31 (72.06–100) | 0.730 |
| WOMAC total | |||
| Pre-operation | 49.83 (15.94–89.37) | 48.69 (27.76–79.50) | 0.750 |
| 3 mo postoperation | 84.72 (51.11–100) | 84.37 (68.25–100) | 0.908 |
| 1 yr postoperation | 91.35 (22.94–100) | 94.27 (73.95–100) | 0.419 |
| UCLA Activity Score | |||
| Pre-operation | 5.45 (2–9) | 5.30 (2–10) | 0.743 |
| 3 mo postoperation | 6.55 (4–9) | 6.25 (3–9) | 0.389 |
| 1 yr postoperation | 7.24 (4–10) | 7.08 (3–10) | 0.687 |
| HHS pain | |||
| Pre-operation | 22.04 (10–30) | 21.43 (10–30) | 0.681 |
| 3 mo postoperation | 42.44 (30–44) | 43.00 (40–44) | 0.524 |
| 1 yr postoperation | 42.58 (20–44) | 44.00 | 0.300 |
| HHS function | |||
| Pre-operation | 30.08 (10–40) | 28.61 (16–42) | 0.326 |
| 3 mo postoperation | 44.54 (22–47) | 43.19 (32–47) | 0.375 |
| 1 yr postoperation | 44.61 (30–47) | 44.55 (35–47) | 0.970 |
| HHS total | |||
| Pre-operation | 57.83 (35–76) | 56.44 (31–80) | 0.608 |
| 3 mo postoperation | 97.95 (91–100) | 94.80 (81–100) | 0.064 |
| 1 yr postoperation | 97.27 (77–100) | 97.55 (88–100) | 0.890 |
HHS = Harris Hip Score; SF-12 = Short-Form 12; UCLA = University of California Los Angeles; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.