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Distractable vertebral cages for reconstruction after cervical corpectomy.
1Department of Neurosurgery, Charité, Campus Virchow-Klinkum, University Medicine of Berlin, Berlin, Germany. christian.woiciechowsky@charite.de
Spine
|August 12, 2005
Summary
Distractible titanium cages offer effective anterior column support for cervical spinal stenosis reconstruction after corpectomy. This method provides stable, adjustable vertebral body replacement, simplifying procedures and avoiding bone graft complications.
Area of Science:
- Spine surgery
- Orthopedic surgery
- Neurosurgery
Background:
- Anterior corpectomy and reconstruction are standard for cervical spinal canal stenosis.
- Traditional cages require over-distraction for placement.
- Distractible cages (anterior distraction device [ADD]) allow in situ adjustment to corpectomy defects.
Purpose of the Study:
- To evaluate the efficacy of distractable titanium cages for reconstruction after cervical corpectomy.
- To assess the clinical and radiographic outcomes of using ADDs in degenerative cervical spinal canal stenosis.
Main Methods:
- Retrospective study of 20 patients with degenerative cervical spinal canal stenosis.
- Corpectomy followed by placement of a distractable titanium cage (ADD).
- Clinical and radiographic follow-up for 18-60 months.
Main Results:
- Stable anterior column reconstruction achieved in all cases.
- One incidence of cage subsidence reported.
- 55% excellent, 20% good, 15% satisfactory, and 10% poor outcomes based on Odom criteria.
Conclusions:
- Distractable cages are effective vertebral body replacements for cervical corpectomy.
- They provide adjustable, stable anterior column support and simplify surgical procedures.
- This technique avoids bone graft site morbidity and allows for direct cage fixation.