Vertebral Body Tethering (VBT)

During vertebral body tethering, a qualified surgeon will make the smallest incision possible, accessing the scoliotic curve from the convex, or outward bending side of the curve. A scope with magnification may be used to aid in visibility during this procedure. With clear access to the affected vertebrae, titanium screws are implanted into the convex side of each vertebra. These screws are coated in hydroxyapatite, the same substance from which bones are made. This substance aids the vertebrae in growing in and around these screws. Following a visual inspection and X-ray imaging of the spine, the correct placement of the screws is verified.

The final step of the procedure involves the attachment of a flexible cord to the implanted screws. This cord places pressure on the convex side of the scoliotic curve, causing bones to grow more slowly and with increased density. This allows the bones on the concave section of the curve to grow faster and less compactly, aiding in the straightening of the spine over time. The flexibility of the cord also allows for more flexibility in movement than traditional fusion procedures that are used to treat scoliosis. This means that patients can typically return to their usual (or a vastly improved) range of motion following surgery.

Some Of The Benefits Of Vertebral Body Tethering (VBT) Include The Following:

• VBT is typically a one-time surgery with little need for surgical upgrades
• With no fusion of the vertebrae required, the spine retains its flexibility and room for growth
• Flexibility in the spine allows the patient to return to sports or other active hobbies
• Minimally invasive techniques lead to shorter hospital stays and abbreviated recovery times
• The flexible cord will immediately generate a noticeable difference in posture after surgery
• Many patients are up and walking on the same day as the procedure

Advantages of Vertebral Body Tethering

Significant strides have been made in the treatment of scoliosis, and vertebral body tethering is at the forefront of these advancements. Doctors now know how to treat complicated conditions with minimally invasive procedures and exceedingly successful results.

Eligibility Requirements for Vertebral Body Tethering

The ideal candidate for vertebral body tethering will be an individual who is older than 10 years of age but who has not yet reached spinal maturity. The degree of spinal curvature should be advanced and fall within a range of 35-70 degrees of curvature. This candidate group is not exclusive, however, and can be expanded to include individuals with more extreme curvature or older patients (depending upon your situation and the discretion of the surgeon).

Vertebral body tethering may not be beneficial for those who are experiencing severe curvature and spinal immobility, especially if there are previous fusion surgeries already intact. It is also not recommended for very small children under the age of 10; however, these decisions are made on a case-by-case basis.