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Article

Application of an Expandable Cage for Reconstruction of the Cervical Spine in a Consecutive Series of Eighty-Six Patients

1
Department of Neurosurgery, University of Marburg, 35043 Marburg, Germany
2
Marburg Center for Mind, Brain and Behavior (MCMBB), 35032 Marburg, Germany
3
Department of Neurosurgery, Helios Dr. Horst Schmidt Kliniken, 65199 Wiesbaden, Germany
*
Author to whom correspondence should be addressed.
Medicina 2020, 56(12), 642; https://doi.org/10.3390/medicina56120642
Received: 11 October 2020 / Revised: 18 November 2020 / Accepted: 23 November 2020 / Published: 25 November 2020
(This article belongs to the Special Issue Complex and Minimally Invasive Spine Surgery)
Background and objectives: Expandable cages are frequently used to reconstruct the anterior spinal column after a corpectomy. In this retrospective study, we evaluated the perioperative advantages and disadvantages of corpectomy reconstruction with an expandable cage. Materials and Methods: Eighty-six patients (45 male and 41 female patients, medium age of 61.3 years) were treated with an expandable titanium cage for a variety of indications from January 2012 to December 2019 and analyzed retrospectively. The mean follow-up was 30.7 months. Outcome was measured by clinical examination and visual analogue scale (VAS); myelopathy was classified according to the EMS (European Myelopathy Scale) and gait disturbances with the Nurick score. Radiographic analysis comprised measurement of fusion, subsidence and the C2–C7 angle. Results: Indications included spinal canal stenosis with myelopathy (46 or 53.5%), metastasis (24 or 27.9%), spondylodiscitis (12 or 14%), and fracture (4 or 4.6%). In 39 patients (45.3%), additional dorsal stabilization (360° fusion) was performed. In 13 patients, hardware failure occurred, and in 8 patients, adjacent segment disease occurred. Improvement of pain symptoms, myelopathy, and gait following surgery were statistically significant (p < 0.05), with a medium preoperative VAS of 8, a postoperative score of 3.2, and medium EMS scores of 11.3 preoperatively vs. 14.3 postoperatively. Radiographic analysis showed successful fusion in 74 patients (86%). As shown in previous studies, correction of the C2–C7 angle did not correlate with improvement of neurological symptoms. Conclusion: Our results show that expandable titanium cages are a safe and useful tool in anterior cervical corpectomies for providing adequate anterior column support and stability. View Full-Text
Keywords: expandable cage; cervical spine; corpectomy; anterior spinal column expandable cage; cervical spine; corpectomy; anterior spinal column
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MDPI and ACS Style

Pojskic, M.; Saβ, B.; Nimsky, C.; Carl, B. Application of an Expandable Cage for Reconstruction of the Cervical Spine in a Consecutive Series of Eighty-Six Patients. Medicina 2020, 56, 642. https://doi.org/10.3390/medicina56120642

AMA Style

Pojskic M, Saβ B, Nimsky C, Carl B. Application of an Expandable Cage for Reconstruction of the Cervical Spine in a Consecutive Series of Eighty-Six Patients. Medicina. 2020; 56(12):642. https://doi.org/10.3390/medicina56120642

Chicago/Turabian Style

Pojskic, Mirza, Benjamin Saβ, Christopher Nimsky, and Barbara Carl. 2020. "Application of an Expandable Cage for Reconstruction of the Cervical Spine in a Consecutive Series of Eighty-Six Patients" Medicina 56, no. 12: 642. https://doi.org/10.3390/medicina56120642

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