Table 4.
Overall rate of complications a
| PA group n = 407 | PTA group n = 33 | |
|---|---|---|
| Prosthesis revised | ||
| Deep infection | 2 | |
| Aseptic loosening | 1 | |
| Reoperation | ||
| Knee stiffness | 1 | 2 |
| Patellar clunk syndrome | 1 | |
| Heterotopic ossification | 1 | |
| Hematoma | 1 | |
| Chronic patellar dislocation | 1 | |
| Early polyethylene wear | 1 | |
| Superficial wound infection | 1 | |
| Overall complications (p < 0.001) | 5 | 7 |
a
At the last follow-up, the overall rate of complications was higher in the PTA group than in the PA group (p < 0.001). Complications were reported as revision if the prosthesis was removed and replaced, and as reoperation when no implant exchange was performed.