Vertebral Body Tethering in 49 Adolescent Patients after Peak Height Velocity for the Treatment of Idiopathic Scoliosis: 2–5 Year Follow-Up
Abstract
:1. Introduction
2. Materials and Methods
2.1. Patient Selection
2.2. Demographic, Radiographic, and Clinical Outcomes
2.3. Statistical Analysis
3. Results
3.1. Radiographic and Inclinometer Outcomes
3.2. Clinical Success
3.3. Complications and Patient Reported Outcomes
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Cohort Demographics (n = 49) | |
Gender (F) | 36 (74%) |
Age | 15.0 ± 1.9 |
Major Cobb | 50.1 ± 6.7 |
Minor Cobb | 35.1 ± 10.6 |
Risser 3|4|5 | 12 (25%)|33 (67%)|4 (8%) |
PHOS 3A|3B|4|5 | 1 (2%)|21 (43%)|18 (37%)|9 (18%) |
Lenke 1|2|3|5|6 | 23 (47%)|1 (2%)|5 (10%)|19 (39%)|1 (2%) |
Mean Follow-Up (months) | 32.5 ± 9.1 |
Instrumented Curve | |
Thoracic | 15 (30%) |
Thoracolumbar | 18 (37%) |
Both | 16 (33%) |
Cords Used | |
Single | 31 (63%) |
Double | 18 (37%) |
Pre-Op | Latest Follow-Up | p-Value | |
---|---|---|---|
All Patients (n = 49) | |||
PTC (°) (% Correction) | 15.8 ± 11.1 | 12.4 ± 7.5 (21.5%) | 0.08 |
MT (°) (% Correction) | 41.6 ± 12.9 | 22.5 ± 8.7 (45.9%) | <0.01 |
TL (°) (% Correction) | 43.2 ± 10.6 | 20.9 ± 8.3 (51.6%) | <0.01 |
T5-T12 Kyphosis (°) | 22.2 ± 11.1 | 25.6 ± 13.4 | 0.19 |
T12-S1 Lordosis (°) | 55.4 ± 12.5 | 56.0 ± 12.4 | 0.82 |
Thoracic Major Curves (n = 24) | |||
PTC (°) (% Correction) | 25.0 ± 8.2 | 16.5 ± 7.3 (34%) | <0.01 |
MT (°) (% Correction) | 51.1 ± 6.9 | 27.2 ± 8.1 (47.7%) | <0.01 |
TL (°) (% Correction) | 37.2 ± 10.7 | 19.2 ± 6.8 (48.4%) | <0.01 |
3D T5-T12 Kyphosis (°) | 6.3 ± 10.8 | 22.5 ± 9.1 | <0.01 |
T12-S1 Lordosis (°) | 55.8 ± 13.3 | 54.8 ± 10.0 | 0.85 |
Thoracolumbar Major Curves (n = 25) | |||
PTC (°) (% Correction) | 7.7 ± 5.6 | 9.3 ± 6.0 (−20.8%) | 0.35 |
MT (°) (% Correction) | 37.2 ± 10.7 | 18.8 ± 9.4 (49.5%) | <0.01 |
TL (°) (% Correction) | 49.0 ± 6.4 | 20.1 ± 8.5 (59.0%) | <0.01 |
T5-T12 Kyphosis (°) | 23.3 ± 12.1 | 27.3 ± 16.4 | 0.34 |
T12-S1 Lordosis (°) | 55.0 ± 12.0 | 55.5 ± 12.2 | 0.89 |
Pre-Op | Latest Follow-Up | p-Value | |
---|---|---|---|
All Patients (n = 49) | |||
Thoracic (°) (% Correction) | 8.6 ± 6.2 | 5.1 ± 4.1 (40.7%) | 0.01 |
Thoracolumbar (°) (% Correction) | 12.4 ± 5.9 | 3.7 ± 2.5 (70.2%) | <0.01 |
Thoracic Major Curves (n = 24) | |||
Thoracic (°) (% Correction) | 13.5 ± 3.8 | 7.9 ± 3.5 (41.5%) | <0.01 |
Thoracolumbar (°) (% Correction) | 8.1 ± 4.2 | 2.7 ± 1.8 (66.7%) | <0.01 |
Thoracolumbar Major Curves (n = 25) | |||
Thoracic (°) (% Correction) | 4.1 ± 4.2 | 2.4 ± 2.5 (41.5%) | 0.15 |
Thoracolumbar (°) (% Correction) | 16.3 ± 4.4 | 4.6 ± 2.7 (71.8%) | <0.01 |
Broken Tether (n = 19) | Intact Tether (n = 29) * | p-Value | |
---|---|---|---|
All Curve Types | |||
PTC (°) (% Correction) | 10.4 ± 8.1 (21.7%) | 12.8 ± 7.7 (31.7%) | 0.31 0.15 |
MT (°) (% Correction) | 21.3 ± 9.7 (42.5%) | 23.4 ± 8.2 (47.6%) | 0.41 0.36 |
TL (°) (% Correction) | 23.9 ± 5.9 (47.5%) | 19.2 ± 9.2 (54.0%) | 0.05 0.29 |
T5-T12 Kyphosis (°) | 22.4 ± 9.0 | 26.5 ± 14.1 | 0.36 |
T12-S1 Lordosis (°) | 55.5 ± 12.6 | 55.8 ± 13.6 | 0.95 |
Curves ≤ 30° | 15/19 = 79% | 22/29 = 76% | 0.80 |
Major Thoracic | |||
Broken Tether (n = 7) | Intact Tether (n = 17) | p-Value | |
PTC (°) (% Correction) | 17.4 ± 5.5 (26.1%) | 16.1 ± 8.0 (37.2%) | 0.70 0.17 |
MT (°) (% Correction) | 30.0 ± 6.0 (41.6%) | 26.0 ± 8.6 (48.9%) | 0.28 0.29 |
TL (°) (% Correction) | 22.9 ± 6.8 (48.2%) | 19.1 ± 9.6 (44.6%) | 0.36 0.92 |
T5-T12 Kyphosis (°) | 26.4 ± 8.1 | 22.6 ± 10.1 | 0.38 |
T12-S1 Lordosis (°) | 57.7 ± 8.3 | 55.9 ± 10.8 | 0.70 |
Major Thoracolumbar | |||
Broken Tether (n = 8) | Intact Tether (n = 16)* | p-Value | |
PTC (°) (% Correction) | 7.4 ± 6.4 (12.9%) | 8.1 ± 4.1 (19.8%) | 0.60 0.45 |
MT (°) (% Correction) | 16.6 ± 8.2 (39.3%) | 19.8 ± 6.2 (46.3%) | 0.22 0.85 |
TL (°) (% Correction) | 25.5 ± 5.2 (46.6%) | 19.3 ± 9.1 (63.6%) | 0.10 0.01 |
T5-T12 Kyphosis (°) | 23.9 ± 17.1 | 32.3 ± 17.5 | 0.22 |
T12-S1 Lordosis (°) | 57.4 ± 11.2 | 55.6 ± 17.3 | 0.99 |
Pre-Op | Latest Follow-Up | p-Value | |
---|---|---|---|
All Patients (n = 24) | |||
Activity | 4.2 ± 0.7 | 4.2 ± 0.4 | 0.5 |
Pain | 3.8 ± 0.7 | 4.4 ± 0.6 | 0.02 |
Self-Image | 3.4 ± 0.7 | 4.1 ± 0.5 | <0.01 |
Mental | 3.9 ± 0.7 | 4.2 ± 0.4 | 0.05 |
Satisfaction | 3.3 ± 0.8 | 4.3 ± 0.6 | <0.01 |
Mean | 3.8 ± 0.5 | 4.2 ± 0.4 | 0.01 |
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Meyers, J.; Eaker, L.; Zhang, J.; di Pauli von Treuheim, T.; Lonner, B. Vertebral Body Tethering in 49 Adolescent Patients after Peak Height Velocity for the Treatment of Idiopathic Scoliosis: 2–5 Year Follow-Up. J. Clin. Med. 2022, 11, 3161. https://doi.org/10.3390/jcm11113161
Meyers J, Eaker L, Zhang J, di Pauli von Treuheim T, Lonner B. Vertebral Body Tethering in 49 Adolescent Patients after Peak Height Velocity for the Treatment of Idiopathic Scoliosis: 2–5 Year Follow-Up. Journal of Clinical Medicine. 2022; 11(11):3161. https://doi.org/10.3390/jcm11113161
Chicago/Turabian StyleMeyers, James, Lily Eaker, Jessica Zhang, Theodor di Pauli von Treuheim, and Baron Lonner. 2022. "Vertebral Body Tethering in 49 Adolescent Patients after Peak Height Velocity for the Treatment of Idiopathic Scoliosis: 2–5 Year Follow-Up" Journal of Clinical Medicine 11, no. 11: 3161. https://doi.org/10.3390/jcm11113161