Table 1.
Unbalanced fusion mass | Group | Mean | SD | 95% CI | |
---|---|---|---|---|---|
Lower | Upper | ||||
Fusion mass Cobb angle (°) | Balanced | 13 | 4 | 12 | 14 |
Unbalanced | 12 | 6 | 9 | 16 | |
Fusion mass shift (mm) | Balanced | 11 | 6 | 0 | 20 |
Unbalanced | 25 | 3 | 21 | 30 |
Balanced group = fusion mass shift 20 mm or less; Unbalanced group = fusion mass shift greater than 20 mm.