Table 4.
Subgroup analysis suggested by the SRS Committee
| Total population | Improved | Unchanged | Worsened | Over 45 | Surgery | ||
|---|---|---|---|---|---|---|---|
| Number of major curves |
Single |
38 |
22 |
14 |
2 |
0 |
0 |
| |
Double major |
32 |
13 |
15 |
2 |
1 |
1 |
| |
Triplemajor |
2 |
1 |
1 |
0 |
0 |
0 |
| Topographic classification |
Thoracic |
12 |
5 |
6 |
1 |
0 |
0 |
| |
Thoracolumbar |
16 |
12 |
4 |
0 |
0 |
0 |
| |
Lumbar |
10 |
5 |
4 |
l |
0 |
0 |
| |
Thoracic-Lumbar |
16 |
6 |
7 |
1 |
1 |
1 |
| |
Thracic-Thoracolumbar |
13 |
6 |
6 |
1 |
0 |
0 |
| |
Double thoracic |
3 |
1 |
2 |
0 |
0 |
0 |
| |
Double thoracic- lumbar |
2 |
1 |
1 |
0 |
0 |
0 |
| Curvature type |
Typical |
61 |
32 |
23 |
4 |
1 |
1 |
| |
Atypical |
11 |
4 |
7 |
0 |
0 |
0 |
| Magnitude of curvature |
25-30 |
40 |
21 |
18 |
l |
0 |
0 |
| |
31-35 |
20 |
8 |
10 |
2 |
0 |
0 |
| |
36-40 |
12 |
7 |
2 |
1 |
1 |
1 |
| Skeletal maturity |
Risser 0 |
48 |
23 |
21 |
2 |
1 |
1 |
| |
Risser 1 |
10 |
5 |
3 |
2 |
0 |
0 |
| |
Risser 2 |
14 |
8 |
6 |
0 |
0 |
0 |
| Brace |
Sibilla |
45 |
27 |
17 |
1 |
0 |
0 |
| |
Lyon/Sforzesco |
20 |
7 |
11 |
2 |
1 |
1 |
| |
SpineCor |
5 |
2 |
2 |
1 |
0 |
0 |
| Dosage of bracing |
Full-time |
30 |
12 |
15 |
3 |
1 |
1 |
| |
Intermediate |
21 |
12 |
9 |
0 |
0 |
0 |
| Part-time | 22 | 12 | 9 | 1 | 0 | 0 |