The role of provocative discography in minimally invasive selective endoscopio discectomyUtilidad de la discografía en la discectomía endoscópica selectiva mínimamente invasiva

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Summary

A discogenic etiology is being widely accepted as a primary source of chronic low-back pain. Eventhough increasing information is available on the pathophysiology of the degenerated disc, the present MR techniques are still not capable of pin-pointing the source of this pain. In other words, with a non-invasive MR1 study we can still not define which disc is painful and what are the characteristics of discogenic pain from an imaging perspective. Discography remains therefore the only functional test that can delimit both morphologically and by provocación which discs are involved in the patents clinical picture.

In combinacion with endoscopic procedures it helps tailor treatments. We consider that this diagnostic tool should be used routinely and performed by the surgeon himself as part of a screening-therapy protocol in spine surgery. We present our considerations regarding this diagnostic-screening method based on our clinical and surgical experíence in patients who have been evaluated and have undergone selective endoscopic discetomy after the screening.

Resumen

La etiología discogénica se está aceptando cada vez más como la fuente principal del dolor lumbar crónico. Aunque conocemos más y más los mecanismos patofisiológicos del disco intervertebral degenerado, las técnicas diagnósticas mediante RM aún no son capaces de delimitar la fuente de este dolor y cuales son sus características por lo menos en plan morfológico (imagen). La discografía permanece por lo tanto el único test funcional que puede delimitar morfológicamente y mediante provocación qué disco(s) están involucrados en el cuadro clínico del paciente. En combinación con técnicas endoscópicas nos ayuda a delimitar y planificar los tratamientos.

Consideramos que esta técnica diagnóstica debería ser utilizada de rutina y llevada a cabo por el mismo cirujano como parte de un protocolo de screening-terapia en cirugía espinal. Presentamos nuestras consideraciones con respecto a este método diagnóstico-selectivo basándonos en nuestra experiencia clínica y quirúrgica en pacientes que han sido evaluados y en los cuales se ha llevado a cabo una discectomía endoscópica selectiva.

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Bini, W; Yeung, A.T.; Calatayud, V.P.; Chaaban K. A.; Seferlis, T.: The role of provocative discography in minimally invasive selective endoscopic discectomy. Neurocirugía 2002. 1:27–31.

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