Introduction
Materials and methods
Subjects
Skeletal maturity and progression
Night-time brace
Statistical analysis
Results
Subjects
No progression (n = 34) | Progression (n = 52) | p-value | |
---|---|---|---|
Age | 13.4 (1.2) | 13.1 (1.1) | 0.211 |
Female | 30 (88%) | 43 (83%) | 0.553 |
Curve type | 0.004 | ||
Main thoracic | 20 (59%) | 27 (52%) | |
Thoracolumbar/lumbar | 14 (41%) | 13 (25%) | |
Double curves | 0 (0%) | 12 (23%) | |
Premenarchal status, n = 70 | 13 (38%) | 30 (58%) | 0.037 |
Pre-brace main curve Cobb angle, degrees | 33 (4) | 34 (4) | 0.781 |
Brace treatment, months | 22 [17–32] | 29 [24–39] | 0.004 |
No progression (n = 31) | Progression (n = 18) | p-value | |
---|---|---|---|
Age | 14.8 (1.0) | 14.1 (1.1) | 0.028 |
Female | 29 (94%) | 14 (78%) | 0.175 |
Curve type | 0.046 | ||
Main thoracic | 14 (45%) | 13 (72%) | |
Thoracolumbar/lumbar | 17 (55%) | 4 (22%) | |
Double curves | 0 (0%) | 1 (6%) | |
Premenarchal status, n = 41 | 3 (10%) | 5 (28%) | < 0.001 |
Pre-brace main curve Cobb angle, degrees | 34 (4) | 33 (4) | 0.428 |
Brace treatment, months | 17 [13–21] | 21 [16–34] | 0.020 |
Skeletal maturity and progression
Risser group 0–2 (n = 86) | |
Progression > 5° at SM | 52 (60%) |
Progression > 45° at SM | 37 (43%) |
Fusion surgery performed | |
At SM | 30 (35%) |
Within 2 years after SM | 7 (8%) |
+ 2 years after SM | 4 (5%) |
Risser group 3–4 (n = 49) | |
Progression > 5° at SM | 18 (37%) |
Progression > 45° at SM | 12 (24%) |
Fusion surgery performed | |
At SM | 5 (10%) |
Within 2 years after SM | 1 (2%) |
+ 2 years after SM | 7 (14%) |
Univariable OR | p-value | Multivariable OR | p-value | |
---|---|---|---|---|
Risser 3–4 | 0.38 [0.18;0.78] | 0.008 | 0.65 [0.25;1.72] | 0.385 |
Premenarchal status | 4.37 [1.97;9.72] | < 0.001 | 2.68 [1.08;6.67] | 0.034 |
Age (years) | 0.63 [0.47;0.84] | 0.002 | 0.75 [0.50;1.12] | 0.158 |