Thoracic Kyphosis (Cobb 50–80°) in Skeletally Immature Patients When Bracing Has Not Achieved Correction
In skeletally immature patients with thoracic kyphosis measuring 50–80 degrees by Cobb angle, the first-line approach combines physical therapy with sustained spinal orthosis use. When that regimen fails to deliver the expected correction, vertebral remodeling, or pain relief, a surgical protocol becomes applicable.
Clinical Scenario
Skeletally immature patient with thoracic kyphosis, Cobb angle 50–80 degrees. Conservative management started before skeletal maturity offers a reproducible success rate — but correction and remodeling are not always achieved.
Prior Treatment — Goals Not Reached
The preceding line combined thoracic extensor, abdominal, and pectoralis and hamstring stretching exercises with a spinal orthosis worn a minimum of 16 hours per day.
This protocol applies when that regimen did not achieve:
- Correction of thoracic kyphosis
- Thoracic vertebral remodeling
- Reduction in back pain
Next-Step Surgical Approach — Overview
The protocol for this situation centres on posterior spinal fusion with multilevel corrective osteotomies; an alternative anterior-posterior combined approach also exists within the protocol — the complete surgical algorithm, instrumentation strategy, and selection criteria are available in the full structured regimen.
Treatment Goals
- Correction of thoracic kyphosis by 40–50 degrees, or within 50% of the preoperative magnitude
- Restoration of sagittal and spinopelvic balance
- Alleviation of back pain
- Resolution of neurologic impairment
References
- Skeletally immature patients with SK benefit from similar exercise programs, but require the addition of a spinal orthosis.
- There is a reproducible and overall successful result in patients with kyphosis between 50 and 80° if initiated before skeletal maturity.
- Progressive deformity refractory to bracing, worsening pain, neurologic deficit, and significant deformity in skeletally mature patients are common indications for surgical management.
- The development of thoracic segmental pedicle screw instrumentation, combined with wide adoption of multilevel corrective osteotomies, now allows surgeons to achieve comparable sagittal correction through a posterior-only approach.
- A correction of 40 to 50°, or within 50% of preoperative kyphosis, is advisable to achieve adequate correction while avoiding junctional kyphosis.
- The goals of treatment are restoration and stabilization of mechanical alignment, alleviation of pain, resolution of neurologic impairment, and improvement of cosmesis.
DOI: 10.1007/s12178-023-09861-z
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