Table 2.
Subject ID | S1 | S2 | S3 | S4 | S5 | S6 |
---|---|---|---|---|---|---|
Demographics and clinical parameters at end of study or nearest previous visit | ||||||
Reason for end of study | MT>50°, Height velocity <1 cm/year, PSF* at 39 mos | Height velocity <1 cm/year | MT>50°, PSF* | 5 years post-op | Height velocity <1cm/year | Height velocity <1cm/year, MT >50° |
Postop time to end of study visit (months) | 36 | 48 | 24 | 60 | 42 | 48 |
Age (years) | 16.1 | 16.6 | 13.5 | 15.5 | 14.2 | 18.8 |
Height (cm) | 160 | 151 | 184 | 168 | 150 | 177 |
Weight (kg) | 56 | 47.9 | 56.8 | 67.4 | 78.4 | 74.2 |
BMI | 21.9 | 21.1 | 16.8 | 23.9 | 33 | 23.7 |
BMI (%ile for age, gender) | 66 | 55 | 16 | 84.8 | 98 | 65 |
Time from menarche (months) | 28 | 37 | NA | NA | 18 | NA |
Risser grade, from radiologist report | 2 | 4 | 4-5 | 3 | 4 | 4 |
Triradiates | Indeterminate / Closed | Closed | Closed | Closed | Closed | Closed |
Height velocity, based on 6 months previous to end of study visit (cm/year) | 0 | 0.25 | 2.1 (prior to PSF) | 1.2 | 0.6 | 0 |
Skeletally mature at end of study visit | Yes | Yes | No | No | Yes | Yes |
Bracing | No | No | No | No | No | No |
Other treatment | No | Massage/Manual therapy weekly | No | Shoe inserts | No | Physical therapy |
Neurological impairment | No | No | No | No | No | No |
Clinical outcome score (SRS-22r) | 3.6 | 3.9 | 3.4 | 4.1 | 4 (at last scoring at 36 mos) | 3.2 |
Back pain, VAS (cm) | 4.6 | 5.5 | 0.3 | 0.8 | 1 (at last scoring at 36 mos) | 5 |
Curve parameters | ||||||
Major thoracic (MT) curvature (deg) | 59 | 32 | 61 | 9 | 39 | 53 |
Change in MT curvature from pre-op (deg) | 24 | 1.5 | 26 | −27 | 8 | 14.5 |
Thoracolumbar/lumbar (TL/L) curvature (deg) | 34 | 33 | 22 | 0 | 36 | 39 |
Proximal thoracic (PT) curvature (deg) | 28 | 18 | 31 | −34 | 20 | 37 |
Thoracic kyphosis (TK) (deg) | 33 | 32 | 17 | 46 | 25 | 21 |
Levels, TK | T2-T12 | T3-T12 | T3-T12, T4-T12, T2-L2 | T2-T12 | T3-T12 | T3-T12 |
Apical trunk rotation (deg) | 16 | 10 | 9 | 0 | 12 | 11 |
Coronal balance (mm) | 17 | −1 | 9 | −14 | −5 | −2 |
Rate of change of MT curvature from immediate postop to end of study visit (deg/year) | 8.0 | 0.4 | 13 | −5.4 | 2.3 | 3.6 |
BMI, body mass index; NA, not applicable; TK, thoracic kyphosis; VAS, visual analog scale.
PSF: Posterior spinal fusion after MT curve > 50°.