Table 1.
Comparison of baseline variables, including demographics and preoperative patient-reported outcomes and range of motion between intraarticular alone and combined intraarticular and intravenous groups
|
Intraarticular alone
(N=21) |
Combined
(N=29) |
P-value | |
|---|---|---|---|
| Baseline variables | |||
| Age (years) | 65.4±11.7 | 63.3±7.1 | 0.51 |
| Female, N (%) | 17 (81) | 21 (72) | 0.49 |
| Weight (kg) | 82.4±22.5 | 83.4±11.9 | 0.17 |
| BMI (kg/m2) | 32.2±7.3 | 31.9±5.1 | 0.91 |
| Diabetes mellitus, N (%) | 4 (19) | 10 (35) | 0.23 |
| Cardiovascular disease, N (%) | 2 (10) | 3 (10) | 0.92 |
| Peripheral vascular disease, N (%) | 1 (5) | 0 | 0.24 |
| Preoperative hemoglobin (g/dL) | 12.4±1.2 | 12.7±1.7 | 0.56 |
| Patient-reported outcomes and range of motion | |||
| Pain VAS | 8.1±2.1 | 8.5±2.6 | 0.38 |
| WOMAC | 73.9±20.6 | 77.4±25.3 | 0.78 |
| EQ-5D | 83.2±16.2 | 81.8±18.9 | 0.68 |
| Flexion, degrees | 136.4±14.6 | 131.2±13.1 | 0.28 |
| Extension, degrees | 1.5±8.0 | 5.9±4.6 | 0.48 |
| Intraoperative variables | |||
| Duration of surgery, mins | 82.5±8.3 | 78±13 | 0.32 |
| Femoral component size | 4.0±1.4 | 4.1±1.2 | 0.84 |
| Tibial component size | 2.8±1.2 | 3.0±1.2 | 0.92 |
| Tibial insert thickness | 10.4±1.7 | 10.5±1.3 | 0.55 |
All values are expressed in mean±SD, unless specified
BMI: body mass index
VAS: visual analog scale
WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index
EQ-5D: EuroQol 5 dimension