Official Journal of the Italian Society of Orthopaedics and Traumatology
Table 3 Comparison of clinical data and postoperative spinopelvic parameters of four theoretical sagittal profiles
Type 1 | Type 2 | Type 3 | Type 4 | P value | |
|---|---|---|---|---|---|
Age at surgery, years | 62.3 ± 9.7 | 59.3 ± 9.0 | 60.7 ± 10.3 | 57.4 ± 9.6 | 0.162 |
Fusion level | |||||
L4–5 | 10 (41.6%) | 12 (40.0%) | 68 (50.0%) | 28 (63.6%) | 0.163 |
L3–5 | 14 (58.3%) | 18 (60.0%) | 68 (50.0%) | 16 (36.4%) | |
PT, ° | 12.6 ± 4.2 | 12.3 ± 5.7 | 16.5 ± 5.1 | 23.3 ± 6.9 | < 0.001 |
PI, ° | 38.9 ± 4.1 | 38.3 ± 4.4 | 51.4 ± 4.4 | 64.5 ± 4.0 | < 0.001 |
SS, ° | 26.3 ± 4.7 | 26.0 ± 6.1 | 34.9 ± 5.0 | 41.2 ± 5.7 | < 0.001 |
LL, ° | 42.2 ± 5.8 | 38.4 ± 9.9 | 48.6 ± 8.8 | 53.1 ± 11.8 | < 0.001 |
DL, ° | 30.6 ± 4.6 | 24.8 ± 8.3 | 31.4 ± 7.8 | 30.1 ± 10.7 | 0.002 |
SL, ° | 19.5 ± 5.4 | 15.4 ± 9.0 | 20.8 ± 6.0 | 26.2 ± 7.1 | < 0.001 |
LDI, % | 73.0 ± 9.7 | 65.8 ± 19.3 | 65.2 ± 15.0 | 56.3 ± 14.6 | < 0.001 |
SVA, mm | 1.3 ± 28.4 | 5.9 ± 31.4 | 7.3 ± 28.4 | 14.2 ± 26.4 | 0.305 |
PI − LL | |||||
≤ 10° | 25 (100%) | 27 (93.1%) | 108 (79.4%) | 20 (45.5%) | < 0.001 |
> 10° | 0 (0%) | 2 (6.9%) | 28 (20.6%) | 24 (54.5%) | |