TABLE II.
Functional Outcomes During the Study Period*
| Intention to Treat | Per Protocol | |||||
| Hemiarthroplasty Group† (N = 60) | Total Hip Arthroplasty Group† (N = 60) | Mean Difference (95% CI) | Hemiarthroplasty Group† (N = 59) | Total Hip Arthroplasty Group† (N = 55) | Mean Difference (95% CI) | |
| Harris hip score (points) | ||||||
| Baseline | 88 ± 12 (n = 59) | 89 ± 10 (n = 60) | −1 (−5 to 3) | 88 ± 12 (n = 59) | 89 ± 10 (n = 55) | −1 (−5 to 3) |
| 3 mo | 69 ± 14 (n = 54) | 70 ± 13 (n = 57) | −1 (−6 to 4) | 69 ± 14 (n = 54) | 70 ± 14 (n = 53) | −1 (−6 to 5) |
| 1 yr | 71 ± 16 (n = 50) | 74 ± 16 (n = 56) | −3 (−9 to 3) | 71 ± 16 (n = 50) | 73 ± 16 (n = 52) | −2 (−9 to 4) |
| 2 yr | 74 ± 14 (n = 47) | 76 ± 15 (n = 56) | −2 (−4 to 2) | 74 ± 14 (n = 47) | 75 ± 15 (n = 49) | −1 (−7 to 5) |
| EQ-5D | ||||||
| Baseline | 0.67 ± 0.34 (n = 59) | 0.75 ± 0.26 (n = 60) | −0.08 (−0.19 to 0.02) | 0.67 ± 0.34 (n = 59) | 0.75 ± 0.26 (n = 55) | −0.08 (−0.19 to 0.04) |
| 3 mo | 0.67 ± 0.24 (n = 54) | 0.65 ± 0.26 (n = 57) | 0.02 (−0.07 to 0.11) | 0.67 ± 0.24 (n = 54) | 0.65 ± 0.25 (n = 53) | 0.02 (−0.08 to 0.11) |
| 1 yr | 0.66 ± 0.27 (n = 50) | 0.68 ± 0.30 (n = 56) | −0.02 (−0.13 to 0.09) | 0.66 ± 0.27 (n = 50) | 0.67 ± 0.31 (n = 52) | −0.01 (−0.12 to 0.10) |
| 2 yr | 0.55 ± 0.36 (n = 47) | 0.66 ± 0.27 (n = 52) | −0.11 (−0.23 to 0.02) | 0.55 ± 0.36 (n = 47) | 0.65 ± 0.27 (n = 49) | −0.11 (−0.23 to 0.03) |
| Pain numerical rating scale | ||||||
| Baseline | 0.4 ± 1.6 (n = 59) | 0.38 ± 1.3 (n = 60) | 0.0 (−0.5 to 0.5) | 0.4 ± 1.6 (n = 59) | 0.3 ± 1.2 (n = 55) | 0.1 (−0.5 to 0.6) |
| 3 mo | 2.3 ± 1.9 (n = 54) | 1.9 ± 1.7 (n = 57) | 0.3 (−0.4 to 1.0) | 2.3 ± 1.9 (n = 54) | 2.0 ± 1.7 (n = 53) | 0.3 (−0.5 to 0.9) |
| 1 yr | 1.6 ± 1.8 (n = 50) | 1.3 ± 1.8 (n = 56) | 0.3 (−0.4 to 0.2) | 1.6 ± 1.8 (n = 50) | 1.3 ± 1.8 (n = 52) | 0.3 (−0.4 to 1.0) |
| 2 yr | 1.5 ± 1.9 (n = 47) | 1.5 ± 1.9 (n = 56) | 0.0 (−0.8 to 0.8) | 1.5 ± 1.9 (n = 47) | 1.5 ± 2.0 (n = 49) | 0.0 (−0.8 to 0.8) |
| Activities of daily living | ||||||
| Baseline | 90% (53/59) | 93% (56/60) | 88% (52/59) | 93% (51/55) | ||
| 3 mo | 69% (37/54) | 68% (39/57) | 69% (37/54) | 68% (36/53) | ||
| 1 y mo | 68% (34/50) | 64% (36/56) | 68% (34/50) | 63% (33/52) | ||
| 2 y mo | 72% (34/47) | 65% (34/52) | 64% (30/47) | 65% (32/49) | ||
*
There was no significant difference between the groups in any of the analyses.
†
The Harris hip score, EQ-5D, and pain numerical rating scale data are given as the mean and standard deviation, with the number of patients with available data in parentheses The activities of daily living data are given as the proportion of patients who were fully independent in activities of daily living, with the numerator and denominator in parentheses.