Stabilization of acrylic vertebral body replacement

Area of Science:

• Orthopedic Surgery
• Neurosurgery
• Biomaterials Science

Background:

• Vertebral body replacement is crucial for managing spinal instability.
• Acrylic prostheses offer customizable solutions but require secure fixation.
• Cervical spine surgery presents unique challenges due to anatomical complexity.

Observation:

• A novel technique utilizing internal screw fixation for acrylic vertebral body prostheses was developed.
• The fixation method aims to enhance the stability of the prosthesis within the vertebral body.
• A case study involved replacement of the second cervical body and odontoid with a custom methylmethacrylate prosthesis.

Findings:

• Internal screw fixation effectively prevents subluxation and rostrocaudal dislocation of the acrylic prosthesis.
• The described technique provides robust stabilization for vertebral body replacements.
• The case report demonstrated rapid neurological recovery and excellent stabilization post-procedure.

Implications:

• This technique offers a simple and effective method for stabilizing acrylic vertebral body replacements.
• It may improve outcomes in patients undergoing cervical spine reconstruction.
• Further research could explore the long-term efficacy and broader applications of this fixation method.