Table 4.
Major complication rates in the bilateral TKA groups
| Variables | Same-admission staged (n = 149) | Staged (n = 1557) | p value | ||
|---|---|---|---|---|---|
| Number | Percent | Number | Percent | ||
| Any major complication | 24 | 16.1 | 140 | 9.0 | 0.008 |
| Central nervous system (infarction complication) | 0 | 0 | 0 | 0 | N/A |
| Pulmonary compromise | 9 | 6.0 | 55 | 3.5 | 0.170 |
| Sepsis | 0 | 0 | 2 | 0.1 | 1.000 |
| Shock/cardiorespiratory arrest | 0 | 0 | 1 | 0.1 | 1.000 |
| Acute myocardial infarction | 1 | 0.7 | 2 | 0.1 | 0.240 |
| Cardiac complications* | 3 | 2.0 | 18 | 1.7 | 0.421 |
| Pneumonia | 0 | 0 | 4 | 0.3 | 1.000 |
| Pulmonary embolism | 4 | 2.7 | 9 | 0.6 | 0.021 |
| Deep vein thrombosis | 11 | 7.4 | 59 | 3.8 | 0.048 |
| Deep periprosthetic infection | 0 | 0 | 0 | 0 | N/A |
* Except acute myocardial infarction; N/A = not applicable.