Table 7.
Preoperative and postoperative average angle assessment depending on fracture type - Group A
| Fracture type - Sanders classification | II (n=19) | III (n=18) | IV (n=5) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Assessed angle | N | Aver. | M | N | Aver. | M | N | Aver. | M |
| B angle | |||||||||
| Bef. OS | 19 | 1.8 | 5.0 | 18 | 9.3 | 12.0 | 5 | 1.0 | 4.0 |
| After OS | 19 | 25.6 | 27.4 | 18 | 28.2 | 28.0 | 5 | 21.3 | 23.0 |
| After 1 yr. | 19 | 23.8 | 26.4 | 18 | 25.3 | 26.8 | 5 | 18.4 | 22.0 |
| After 2 yr. | 13 | 22.8 | 28.0 | 13 | 24.5 | 23.0 | 0 | ||
| G angle | |||||||||
| After OS | 19 | 122.6 | 121.9 | 18 | 125.7 | 122.8 | 5 | 127.7 | 132.0 |
| After 1 yr. | 19 | 120.1 | 121.3 | 18 | 121.4 | 120.0 | 5 | 126.2 | 130.8 |
| After 2 yr. | 13 | 119.3 | 120.0 | 13 | 116.0 | 118.0 | 0 | ||
| TCA angle | |||||||||
| After OS | 19 | 37.3 | 38.4 | 18 | 38.1 | 38.0 | 5 | 32.0 | 31.0 |
| After 1 yr. | 19 | 35.5 | 36.9 | 18 | 36.4 | 35.0 | 5 | 30.6 | 28.0 |
| After 2 yr. | 13 | 35.0 | 35.0 | 13 | 34.4 | 34.0 | 5 | ||
| TFMA angle | |||||||||
| After OS | 19 | 7.5 | 4.4 | 18 | 5.7 | 5.0 | 5 | 8.1 | 7.0 |
| After 1 yr. | 19 | 8.6 | 7.0 | 18 | 6.2 | 5.8 | 5 | 7.3 | 7.0 |
| After 2 yr. | 13 | 7.3 | 6.0 | 13 | 5.9 | 6.0 | 0 | ||
| CIA angle | |||||||||
| After OS | 19 | 23.6 | 23.0 | 18 | 23.3 | 23.0 | 5 | 24.9 | 23.0 |
| After 1 yr. | 19 | 21.1 | 20.4 | 18 | 20.3 | 20.0 | 5 | 19.9 | 18.0 |
| After 2 yr. | 13 | 20.1 | 20.0 | 13 | 20.1 | 20.0 | 0 | ||
N - number of patients, M - median, bef. OS - before osteosynthesis, yr. - year, OS - osteosynthesis, Aver. - average
Sanders type IV fractures were not assessed after two years, 4 patients underwent isolated subtalar distraction tricortical arthrodesis