Table 3.
Revision components
| Component | Rev-UKA (n = 68) | Rev-TKA (n = 112) | p value* |
|---|---|---|---|
| Polyethylene liner thickness (mm)† | 8–25 (12.8) | 8–30 (15.5) | < 0.001 |
| Wedges | |||
| 0 | 52 (77%) | 56 (50%) | < 0.001 |
| 1 | 16 (23%) | 17 (15%) | |
| > 1 | 0 (0%) | 39 (35%) | |
| Stems | |||
| 0 | 50 (74%) | 34 (30%) | < 0.001 |
| 1 | 17 (25%) | 34 (30%) | |
| 2 | 1 (1%) | 44 (39%) |
* Student’s t test for comparison of polyethylene liner thickness and Pearson’s chi square test for comparisons of wedges and stems; †values expressed as means, with ranges in parentheses; rev-UKA = unicompartmental knee arthroplasty revision; rev-TKA = TKA revision.