Objective:

Low back pain is one of the most common pathologies in adult population. Its economic burden to the health system and its impact on quality of life and function, makes it a relevant theme. In most of the cases the etiology of pain can be delimitated but a diagnostic scale for discogenic low back pain (DLBP) is not available. Reviewing the most frequent signs and symptoms of DLBP in literature may improve the approach to the patient with pain. Additionally, it may aid the creation of a pilot diagnostic scale for DLBP.

Materials and methods:

A systematic review of literature was done over the last 20 years in MEDLINE and BIREME. A mapping review of the most frequent symptoms and signs (clinical and imaging) used to suspect DLBP was conducted. A total of 1010 articles were reviewed, 103 of which were selected to analyze the frequency of reporting signs and symptoms included in the diagnosis.

Results:

In the mapping review, the most frequent symptom was axial low back pain, followed by the absence of radicular pain. A lower frequency of description was observed in the literature regarding the signs associated with disc pain, finding mention only in 12 % of the articles of biphasic movements when passing from sitting to standing. The centralization of pain to the physical examination, a positive vibration test and the absence of improvement with facet and sacroiliac infiltration, were other signs found in the review. As for the diagnostic images, the Pfirrmann scale had the highest frequency of appearance, followed by the HIZ (High intensity zone) and Modic changes.

Conclusions:

Low back pain is a complex pathology in its treatment and its consequences in the lives of patients. Diagnosing DLD can improve how we manage patients. Symptoms and clinical and radiological signs have a greater diagnostic impact when used together. The characteristics with the highest frequency of appearance in the literature were selected to generate a pilot scale, which should be compared to the gold standard in DLD, discography.

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