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Volume 6, Issue 2 (Spring 2020)
Iran J Neurosurg 2020, 6(2): 49-56 |
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Shafizad M, Haddadi K. Skipping Cross Links in Posterior Spine Surgery: A Review. Iran J Neurosurg 2020; 6 (2) :49-56
URL: http://irjns.org/article-1-211-en.html
URL: http://irjns.org/article-1-211-en.html
1- Associate Professor of Neurosurgery, Spine Fellowship, Department of Neurosurgery, Orthopedic Research Center, Mazandaran University of Medical Sciences, Sari, Iran. , paper87@yahoo.com
2- Assistant Professor of Neurosurgery, Orthopedic Research Center, Imam Khomeini Hospital, Sari, Iran.
2- Assistant Professor of Neurosurgery, Orthopedic Research Center, Imam Khomeini Hospital, Sari, Iran.
Abstract: (3132 Views)
Background and Aim: Given the conflicting and unreliable evidence for using cross-links in posterior spine surgery, this review was conducted to highlight the different features and usefulness of these augmentation devices in spine surgeries.
Methods and Materials/Patients: After searching databases using specific keywords, the relevant articles were ultimately selected and evaluated.
Results: Biomechanically investigating the use of cross-links has not resulted in unanimous explanations for their effect. The site and direction of cross-links have been rarely investigated in the literature. Some studies recommended eliminating their application from clinical practice; nevertheless, these studies do not necessarily yield clinical benefits. Posterior spinal fixation with pedicle screws and without cross-links offers stability in all the planes in most clinical conditions.
Conclusion: Excluding the cross-links in posterior spine surgery may shorten the operation time and reduce hospital costs. Researchers have reported other problems for cross-links such as late pain, device failure, infections, device prominence, and pseudarthrosis which may be obliterated through the avoidance of their combination in a spinal construct; nevertheless, the results of animal models of the application of special cross-links in a degenerative disorder or deformity suggest that diagonal cross-links provide the highest stability of the construct if they are matched with a rodonly system or with transverse cross-link constructs resulting in a rectangular configuration.
Methods and Materials/Patients: After searching databases using specific keywords, the relevant articles were ultimately selected and evaluated.
Results: Biomechanically investigating the use of cross-links has not resulted in unanimous explanations for their effect. The site and direction of cross-links have been rarely investigated in the literature. Some studies recommended eliminating their application from clinical practice; nevertheless, these studies do not necessarily yield clinical benefits. Posterior spinal fixation with pedicle screws and without cross-links offers stability in all the planes in most clinical conditions.
Conclusion: Excluding the cross-links in posterior spine surgery may shorten the operation time and reduce hospital costs. Researchers have reported other problems for cross-links such as late pain, device failure, infections, device prominence, and pseudarthrosis which may be obliterated through the avoidance of their combination in a spinal construct; nevertheless, the results of animal models of the application of special cross-links in a degenerative disorder or deformity suggest that diagonal cross-links provide the highest stability of the construct if they are matched with a rodonly system or with transverse cross-link constructs resulting in a rectangular configuration.
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This is an open access article distributed under the terms of the Creative Commons Attribution License (CC-By-NC), which permits use, distribution, and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
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