Table 3.
Comparison of joint complications for robotic and nonrobotic TKA groups.
| Joint complication | Non–robot-assisted primary TKA (n = 750,122) n (%) | Robot-assisted primary TKA (n = 5228) n (%) | OR (95% CI) |
|---|---|---|---|
| Prosthetic dislocation | |||
| 90 d | 159 (0.02) | 2 (0.04) | 0.56 (0.18-3.37) |
| 1 y | 248 (0.03) | 3 (0.06) | 0.58 (0.22-2.35) |
| Prosthetic joint infection | |||
| 90 d | 4637 (0.62) | 25 (0.48) | 1.27 (0.88-1.93) |
| 1 y | 7221 (0.96) | 39 (0.75) | 1.27 (0.94-1.78) |
| Periprosthetic fracture | |||
| 90 d | 300 (0.04) | 0 (0) | NA |
| 1 y | 676 (0.09) | 0 (0) | NA |
| Aseptic loosening | |||
| 90 d | 182 (0.02) | 2 (0.04) | 0.64 (0.21-3.89) |
| 1 y | 1212 (0.16) | 9 (0.17) | 0.93 (0.51-1.93) |
| Prosthetic revision | |||
| 90 d | 5489 (0.73) | 44 (0.84) | 0.95 (0.72-1.31) |
| 1 y | 25,060 (3.34) | 151 (2.89) | 1.21 (1.03-1.43)a |
| Manipulation under anesthesia | |||
| 90 d | 19,139 (2.55) | 59 (1.13) | 2.50 (1.96-3.28)a |
| 1 y | 25,059 (3.34) | 88 (1.68) | 2.18 (1.78-2.71)a |
a
Bolded entries refer to complications that are statistically significant.