Torre GDM

Language: Spanish
References: 12
Page: 21-27
PDF size: 240.15 Kb.

ABSTRACT

Vertebral instability is the loss of the capability of spinal column to keep vertebras related under physiological conditions of charge, in such a way that spinal cord and nerve roots don’t suffer any damage or irritation. Serious instability is produced by ligamentous osseous structures fractures that expose the cord and nerve roots to sutter injuries and spinal column to suffer deformities. Cronical instability is consequence of progressive deformation that may cause neurological damage. In this research were studied 354 patients diagnosed with vertebral instability caused by spondylolisthesis, fracture, infections, primary metastatics and post surgical tumors by liberation of rachidian canal by posterior pathway. All patients were diagnosed with vertebral instability with or without neurological involvement thoracolumbar level. Treatment was through posterior pathway 267 cases with transpedicular fixation system, and with anterior extrapleural or retroperitoneal pathway approach with plate and screws implantation for the first 6 years, fixation systems were manufactured in stainless steel and for the last 3 year in titanium. Conclusion: Approach of spine by posterior pathway is each time loss practiced compared with previous decadas. It’s used only for certain illness such as spondylolisthesis, fractures with loss than 40% of vertebral body involvement and stabilization postlaminectomy use of titanium equipment gives more tolerance and high resolution that helps taking noe images of magnetic resonance.

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