[Adjustable thoracic-lumbar vertebrae fixation and traction brace: development and clinical usage]

Area of Science:

• Orthopedic biomechanics
• Spinal injury management
• Medical device engineering

Background:

• Conservative management of thoracolumbar injuries often requires effective spinal immobilization.
• Existing braces may have limitations in adjustability and biomechanical efficacy.
• Post-operative care for thoracolumbar fractures, tumors, and tuberculosis necessitates robust support.

Purpose of the Study:

• To develop and evaluate an adjustable traction and fixation brace for thoracolumbar vertebrae.
• To assess the biomechanical properties and clinical efficacy of the novel brace.
• To provide an effective treatment option for patients with specific thoracolumbar conditions.

Main Methods:

• Development of a four-bolt adjustable traction and fixation brace using heat-sensitive plastics.
• Evaluation of the brace's anti-bending strength and draught force.
• Clinical application in patients with thoracolumbar fractures, tumors, and tuberculosis post-operation.

Main Results:

• The brace demonstrated strong anti-bending strength and draught force, effectively restraining spinal movement.
• 98% efficacy rate observed in 102 patients treated with the brace.
• 31 patients experienced pain-free ambulation and squatting, with deformity correction or alleviation.

Conclusions:

• The adjustable thoracolumbar brace offers effective biomechanical support and immobilization.
• The device is suitable for early application (1-2 weeks post-injury) and post-operative management.
• High clinical efficacy suggests the brace is a valuable tool for treating various thoracolumbar conditions.