Table 3.
Radiological follow-up
| Monosegmental ACR | Bisegmental ACR | P value | |
|---|---|---|---|
| n | 18 | 19 | |
| Preop BKA (°) | 6.7 ± 11.6 | 8.6 ± 9.4 | 0.60 |
| Postop BKA (°) | − 7.9 ± 6.6 | − 6.5 ± 5.1 | 0.45 |
| Bisegmental surgical correction (°) | − 14.7 ± 8.1 | − 15.0 ± 8.9 | 0.90 |
| BKA at final follow-up (°) | − 2.8 ± 7.1 | − 3.6 ± 6.6 | 0.73 |
| Preop MKA (°) | 13.7 ± 9.8 | 11.8 ± 10.0 | 0.57 |
| Postop MKA (°) | − 1.9 ± 4.7 | na | na |
| Monosegmental surgical correction (°) | − 15.6 ± 7.7 | na | na |
| MKA at final follow-up (°) | 0.8 ± 5.4 | na | na |
| Time to final radiological follow-up (months) | 28.5 ± 28.0 | 39.5 ± 31.6 | 0.20 |
| Bisegmental loss of correction (°) | 5.2 ± 3.7 | 2.6 ± 2.5 | 0.022 |
| Monosegmental loss of correction (°) | 2.7 ± 2.7 | na | na |
| VBRD subsidence | 5 | 0 | 0.02 |
Bold values indicate P < 0.05
ACR anterior column reconstruction, BKA bisegmental kyphosis angle, MKA monosegmental kyphosis angle, na not applicable, VBRD vertebral body replacement device