Comparison of patients with dislocated v. nondislocated hemiarthroplasty
| Variable | Cohort | Dislocated | p value | |
|---|---|---|---|---|
| Yes (n = 18) | No (n = 36) | |||
| Age, yr, mean ± SD | 82.1 ± 9.87 | 81.6 ± 9.0 | 82.4 ± 10.4 | 0.660 |
| Sex, male:female | 11:43 | 3:15 | 8:28 | 0.633 |
| Approach, n (%) | ||||
| Lateral | 46 (85.2) | 14 (77.8) | 32 (88.9) | — |
| Posterior | 8 (14.8) | 4 (22.2) | 4 (11.1) | 0.279 |
| ASA grade, n (%) | ||||
| I & II | 3 (6.4) | 1 (8.33) | 2 (5.7) | — |
| III & IV | 44 (93.6) | 11 (91.7) | 33 (94.3) | 0.749 |
| Neurological impairment, yes:no | 8:46 | 5:13 | 3:33 | 0.058 |
| Dementia, yes:no | 21:32 | 11:07 | 10:25 | 0.022* |
| Femoral fixation, cemented: pressfit | 5:48 | 1:17 | 4:31 | 0.608 |
| Interval between admission and surgery, hr, mean ± SD | 40.6 ± 26.4 | 44 ± 18.8 | 39.5 ± 28.5 | 0.296 |
| Bearing size, mm, mean ± SD | 46.9 ± 3.75 | 46.8 ± 3.4 | 47.0 ± 4.0 | 0.962 |
| Died within 3 mo, n | 3 | 2 | 1 | 0.250 |
| Died within 24 mo, n | 11 | 9 | 2 | 0.0003 |
ASA = American Society of Anesthesiologists; SD = standard deviation.