Table 1.
Unmatched total knee arthroplasty patients
| SBTKR | UTKR | p | |
|---|---|---|---|
| Patients (n) | 169 | 293 | |
| Age (years) | 65 ± 11 | 68 ± 11 | ns |
| Weight (kg) | 83 ± 19 | 80 ± 17 | ns |
| Age >80 years, n (%) | 3 (1.8) | 40 (13.6) | 0.0001 |
| Sex (male/female) | 65/104 | 99/104 | |
| CAD, n (%) | 15 (9.0) | 34 (11.6) | ns |
| MI, n (%) | 2 (1.1) | 19 (6.5) | 0.02 |
| COPD, n (%) | 4 (2.4) | 16 (5.5) | ns |
| DM, n (%) | 11 (6.5) | 34 (11.6) | ns |
| HTN, n (%) | 76 (45.0) | 143 (49.0) | ns |
| CVA, n (%) | 1 (0.6) | 3 (0.1) | ns |
| Current smoker, n (%) | 10 (5.9) | 32 (10.9) | ns |
| Postoperative events | |||
| PACU (days) | 1.3±0.7 | 0.4±0.5 | 0.0001 |
| PACU (days) >2, n (%) | 12 (7.1) | 11 (3.7) | ns |
| PMI, n (%) | 2 (1.1) | 2 (0.7) | ns |
| CHF, n (%) | 1 (0.6) | 1 (0.3) | ns |
| New onset Afib (n) | 15 (8.9) | 8 (2.7) | 0.001 |
| Renal failure, n (%) | 1 (0.6) | 1 (0.3) | ns |
| PE, n (%) | 1 (0.6) | 1 (0.3) | ns |
| Hypoxemia, n (%) | 9 (5.3) | 3 (1.0) | 0.004 |
| Confusion, n (%) | 11 (6.5) | 5 (1.7) | 0.005 |
| Transfer to ICU | 2 (1.1) | 3 (1.0) | ns |
| EBL (mL) | 1,374±411 | 786±363 | 0.01 |
CAD: coronary artery disease, MI: myocardial infarction, COPD: chronic obstructive pulmonary disease, DM: diabetes mellitus, HTN: hypertension, CVA: cerebral vascular disease, CHF: congestive heart failure, Afib: atrial fibrillation, PE: pulmonary embolism.
Confusion, minimental status test. Hypoxemia, pA(O2) <60 on 3 L/min NC.