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Vol. 38. Issue 4.
Pages 168-174 (January 2004)
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Vol. 38. Issue 4.
Pages 168-174 (January 2004)
Síndrome facetario lumbar. Nuevo signo de diagnóstico clínico
Lumbar facet syndrome. new sign of clinical diagnosis
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J.C. Acevedo González
Corresponding author
jacevedog@msn.com

Correspondencia: Avenida 9, 117–20 Consultorio 318, Santa Fe de Bogotá. Colombia.
Sección de Neurocirugía. Depa,rtamento de Cirugía. Fundación Santa Fe de Bogotá. Colombia.
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Resumen
Objetivo

El diagnóstico del síndrome facetario lumbar (SFL) se ve limitado por la ausencia de signos evidentes que puedan confirmar la presencia de esta patología. Surge entonces la necesidad de encontrar nuevos hallazgos clínicos que permitan acercarse a un diagnóstico y tratamiento adecuado. El objetivo es presentar un análisis preliminar sobre un nuevo signo clínico de provocación facetaria.

Pacientes y métodos

Se incluyeron 150 pacientes consecutivos que asistieron a la consulta de dolor realizada por el autor. Los pacientes fueron clasificados de acuerdo a su diagnóstico clínico y radiológico en 4 grupos: el grupo 1 (control) son 60 pacientes sin patología lumbar, el grupo 2 son 30 pacientes con hernia discal o canal lumbar estrecho, el grupo 3 son 19 pacientes con dolor lumbar sin radiculopatía, producido por una causa distinta a un SFL, y el grupo 4 son 49 pacientes con diagnóstico de SFL confirmado por la respuesta positiva al bloqueo selectivo con tomografía computarizada (TC). En todos los pacientes se exploró el nuevo signo facetario lumbar.

Resultados

El “nuevo signo facetario lumbar” demostró tener una sensibilidad del 95 % (0,951) y una especificidad del 96 % (0,963) para establecer el diagnóstico de un SFL. Su valor predictivo positivo fue del 90 %, y el valor predictivo negativo, del 98 %.

Conclusiones

El análisis preliminar del “nuevo signo facetario lumbar” demostró que se trata de una ayuda clínica para el diagnóstico de esta patología. Son necesarios estudios ulteriores con varios observadores para confirmar estos hallazgos.

Palabras clave:
Dolor lumbar
Enfermedad facetaria
Lumbago
Summary
Objective

The Lumbar Facet Syndrome (LFS) diagnosis is limited by the absence of clear signs that can confirm the presence of this disease. The need then arises to find new clinical findings that make it possible to approach an adequate diagnosis and treatment. The objective is to present a preliminary analysis on a new clinical sign of facet provocation.

Materials and methods

A total of 150 consecutive patients who came to a visit with the author to the pain clinic were included. The patients were classified according to their clinical and radiological diagnosis into 4 groups: group 1 (control) are 60 patients without lumbar disease, group 2 are 30 patients with slipped disk or narrow lumbar canal, group 3 are 19 patients with lumbar pain without radiculopathy produced by a cause other than LFS and group 4 are 49 patients with LFS diagnosis confirmed by the positive response to selective blockage under CT scan. The new lumbar facet sign was examined in all the patients.

Results

The “new lumbar facet sign” was shown to have 95 % (0.951) sensitivity and 96 % (0.963) specificity to establish the diagnosis of LFS. Its positive predictive value was 90 % and negative predictive value was 98 %.

Conclusions

The preliminary analysis of the “new lumbar facet sign” showed that it was a clinical aid for the diagnosis of this disease. Future studies with several observers are necessary to confirm these findings.

Key words:
Lumbar pain
Facet disease
Low Back Pain

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