Adjusted secondary outcomes of matched cohort of patients who underwent total joint arthroplasty*
| Measure | Total hip arthroplasty | Total knee arthroplasty | ||||
|---|---|---|---|---|---|---|
| No. (%) of patients with spinal anesthesia n = 3050 | No. (%) of patients with general anesthesia n = 3050 | OR spinal v. general anesthesia (95% CI) | No. (%) of patients with spinal anesthesia n = 2790 | No. (%) of patients with general anesthesia n = 2790 | OR spinal v. general anesthesia (95% CI) | |
| Blood transfusion | 168 (5.5) | 220 (7.2) | 0.75 (0.60 to 0.92) | 102 (3.7) | 189 (6.8) | 0.52 (0.40 to 0.67) |
| Discharge home | 2794 (91.6) | 2777 (91.0) | 1.07 (0.88 to 1.30) | 2626 (94.1) | 2543 (91.2) | 1.61 (1.30 to 2.00) |
| 30-day readmission | 50 (1.6) | 58 (1.9) | 0.87 (0.59 to 1.28) | 64 (2.3) | 63 (2.3) | 1.03 (0.72 to 1.47) |
| 60-day readmission | 74 (2.4) | 84 (2.8) | 0.89 (0.64 to 1.22) | 94 (3.4) | 99 (3.6) | 0.96 (0.72 to 1.28) |
| 90-day readmission | 97 (3.2) | 120 (3.9) | 0.81 (0.61 to 1.06) | 130 (4.7) | 137 (4.9) | 0.95 (0.74 to 1.23) |
| Deep infection | 13 (0.4) | 10 (0.3) | 1.05 (0.99 to 1.13) | 9 (0.3) | 9 (0.3) | 1.00 (0.92 to 1.09) |
CI = confidence interval, OR = odds ratio.
↵* Adjusted for age, sex, body mass index, American Society of Anesthesiologists score and baseline comorbidities (including diabetes, cardiac illness, pulmonary condition, cancer, stroke, renal dysfunction, hepatic dysfunction, obesity, dementia and mental illness).