Table 2.
Demographic and clinical variables
| Variable | Total | MR | SR | P value* |
|---|---|---|---|---|
| Number of patients | 60 | 30 | 30 | |
| Age (years)† | 73.2 (6.7) | 73.7 (7.2) | 72.7 (6.2) | 0.557 |
| Gender | ||||
| Men | 30% | 26.6% | 33.3% | 0.389 |
| Women | 70% | 73.3% | 66.6% | 0.389 |
| Weight (kg)† | 75.9 (11.9) | 74.6 (12.04) | 77.2 (11.82) | 0.408 |
| Height (m)† | 1.5 (9) | 1.58 (9.2) | 1.59 (8.8) | 0.489 |
| Laterality‡ | ||||
| Right | 28.3% | 40% (22.4%–57.5%) | 16.6% (3.3%–16.6%) | 0.084 |
| Left | 71.6% | 60% (42.4%–77.5%) | 83.3% (70%–96.7%) | 0.084 |
| Patellar replacement‡ | ||||
| Yes | 20% | 20% (5.6%–34.3%) | 20% (5.6%–34.3%) | 0.626 |
| No | 80% | 80% (42.2%–77.5%) | 80% (42.2%–77.5%) | 0.626 |
* Student’s t test for quantitative variables and chi square test for qualitative variables (comparison between control and evaluation groups); †values are expressed as mean, with SD in parentheses; ‡values are expressed as mean, with 95% confidence interval in parentheses; MR = patients receiving the multiradius design; SR = patients receiving the single-radius design.