Table 2.
Postoperative outcomes of patients who underwent TKA with or without a tourniquet.
| Postoperative outcomes | With tourniquet | No tourniquet | P value |
|---|---|---|---|
| Calculated blood lossb (mL) | 199.6 (92.2) | 211.1 (88.1) | .49 |
| Tourniquet time (min) | 36.6 (7.2) | N/A | |
| Hemoglobinb (g/dL) | 11.5 (1.4) | 11.5 (1.4) | .95 |
| Hematocritb (%) | 34.8 (4.0) | 33.6 (3.6) | .08 |
| Drain outputb (mL) | 210.9 (153.4) | 216.5 (123.8) | .83 |
| Operating room timec (min) | 98.5 (46) | 93 (43) | .005a |
| Surgical timec (min) | 67 (71) | 62 (25) | .008a |
| Distance walked with physical therapyc (feet) | 100 (210) | 100 (598) | .54 |
| Length of stayc (d) | 1.3 (.62) | 1.1 (.54) | .26 |
| Able to perform SLRb | 46/60 (77%) | 60/60 (100%) | <.001a |
a
Data in which significance was determined with independent t-test and recorded as mean ± 1 standard deviation.
b
Data in which significance was determined with chi-square test.
c
Data in which significance was determined with Mann-Whitney U test and recorded as the median.