A degradation fragment of type X collagen is a real-time marker for bone growth velocity.
Ryan F Coghlan, Jon A Oberdorf, Susan Sienko...
https://pubmed.ncbi.nlm.nih.gov/29212713/Actively Recruiting
Led by Pediatric Spine Foundation · Updated on 2023-11-15
106
Participants Needed
12
Research Sites
52 weeks
Total Duration
Researchers are evaluating the long-term clinical outcomes of anterior vertebral body tethering AVBT, a minimally invasive growth modulation technique recently approved by the FDA for treating scoliosis in skeletally immature children. The study focuses on how AVBT affects three-dimensional spine growth compared to normal controls, whether it maintains the major Cobb angle at or below 50 degrees at skeletal maturity, and the complications related to the procedure and device. Participants will undergo AVBT surgery as clinically indicated after completing all pre-operative assessments. This procedure aims to control curve progression by applying compression on the convex side of the spinal deformity. The study follows patients for up to five years to monitor spine growth, curve maintenance, and any complications associated with the surgery and the device. During the study, participants will have regular assessments to evaluate three-dimensional spine growth and spinal curve measurements. Researchers will compare these outcomes to those of normal controls and track any surgery or device-related complications over a five-year period. The study involves follow-up visits to ensure ongoing monitoring of participant health and treatment effects.
CONDITIONS
A Prospective Analysis of Long-Term Clinical Outcomes and 3D Spine Growth in Anterior Vertebral Body Tethering
T
Tyler Farber
T
Tricia St. Hilaire
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Pediatric Spine Foundation
Lead Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | AVBT (Investigational) | PSF (Standard Care) |
|---|---|---|
| What It Is | AVBT is a minimally invasive surgical technique using a flexible cord or tether to modulate spine growth and correct scoliosis without spinal fusion. | PSF is a surgical procedure that uses rods and screws to realign the spine and fuse vertebrae, providing stable long-term correction for scoliosis. |
| Primary Use | Evaluated as a growth modulation approach for skeletally immature patients with progressive idiopathic scoliosis who have failed or are intolerant to bracing. | Used to achieve long-term spine correction and prevent curve progression in patients with idiopathic scoliosis for whom bracing has failed. |
| How It Is Given or Performed | Performed through a thoracoscopic or open anterior approach, the tether is attached to vertebral bodies, allowing selective control of spine growth as the child matures. | PSF involves posterior surgical exposure of the spine, placement of metal rods and screws, and fusion of vertebrae to stabilize and correct the curve. |
| Evidence Status | AVBT is being prospectively evaluated for clinical outcomes and long-term spine growth in an ongoing trial. Published studies show two-year success in selected patients, but long-term comparative data and complication rates are still under investigation. | PSF has extensive published evidence supporting long-term effectiveness and spine stabilization for idiopathic scoliosis. Outcomes remain strong in skeletally immature patients, although fusion prevents growth and flexibility. |
| Important Limitations | Potential complications include tether breakage, loss of correction, need for revision surgery, and unknown long-term durability. AVBT does not provide immediate rigid stabilization; outcomes depend on continued growth. | Limitations include permanent loss of spinal flexibility at fused segments, restriction of future growth, and surgical risks such as infection, bleeding, or neurologic injury. Recovery time varies, especially for athletic return. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
You may qualify if you...
You will not qualify if you...
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - As clinically indicated
Participants will undergo anterior vertebral body tethering surgery followed by immediate post-operative care.
Duration - Up to 5 years
Participants will be monitored for long-term clinical outcomes and spine growth after surgery.
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NA
Model
SINGLE_GROUP
Primary Purpose
TREATMENT
Number of Arms
1
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Lead Sponsor