Table 2 Parameters results
Parameters | PA parallel dual screws | PA cross dual screws | AP parallel dual screws | AP cross dual screws |
|---|---|---|---|---|
Maximum talar stress (MPa) | 19.40 | 22.77 | 30.68 | 31.88 |
Internal fixation maximum stress (MPa) | 121.10 | 149.30 | 180.00 | 196.60 |
The maximum displacement of the talar (mm) | 1.597 | 1.674 | 1.673 | 1.764 |
The maximum displacement of the internal fixation (mm) | 1.244 | 1.505 | 1.495 | 1.392 |