Table 1:
Patient Characteristics
| Stiff (n=32) | Non-Stiff (n=130) | P value | |
|---|---|---|---|
| Female, Count (%) | 17 (53.10) | 75 (57.7) | 0.641 |
| White, Count (%) | 26 (81.3) | 117 (89.3) | 0.22 |
| Age, mean (SD) | 65.8 (8.9) | 67.3 (7.9) | 0.351 |
| BMI, mean (SD) | 32.5 (7.7) | 31.1 (6.5) | 0.3 |
| Baseline ROM, mean (SD) | 99 (23) | 109 (13) | 0.023 |
| Joint Fluid Volume (cc), mean (SD) | 4.6 (2.4) | 4.9 (2.7) | 0.586 |
| Has Previous Surgery, Count (%) | 13 (40.6) | 54 (41.5) | 0.925 |
| History of Diabetes, Count (%) | 3 (9.4) | 17 (13.1) | 0.571 |
|
History of Hyperlipidemia, Count
(%) |
16 (50) | 57 (43.8) | 0.531 |
| History of Tobacco Use, Count (%) | 12 (37.5) | 48 (36.9) | 0.952 |
| Statin Use, Count (%) | 17 (53.1) | 50 (38.5) | 0.134 |
| Used any Intra-op TXA, Count (%) | 30 (93.8) | 123 (94.6) | 0.848 |
| DVT prophylaxis, Count (%) | |||
| Apixaban | 0 (0) | 1 (0.8) | 0.955 |
| Aspirin | 16 (50) | 66 (50.8) | |
| Coumadin/Warfarin | 10 (31.3) | 41 (31.5) | |
| Xarelto/Rivaroxaban | 6 (18.8) | 21 (16.2) | |
| None | 0 (0) | 1 (0.8) | |
| TKA Design | 0.809 | ||
| BCS (bi-cruciate stabilized) | 4 (12.5) | 12 (9.2) | |
| CR (cruciate retaining) | 1 (3.1) | 5 (3.8) | |
| PS (posterior stabilized) | 27 (84.4) | 114 (87.0) | |
| Polyethylene* | 0.558 | ||
| Conventional | 20 (62.5) | 74 (56.5) | |
| XLPE | 12 (37.5) | 57 (43.5) | |
| Femoral components* | |||
| CoCr (cobalt-chromium) | 17 (53.1) | 59 (45.0) | 0.554 |
| Oxinium | 15 (46.9) | 72 (55.0) |
*
For implant information not available in the electronic medical record, information was recorded with guidance from the manufacturer.