Introduction:

Low back pain represents a public health problem due to the disability it generates, whether motor or sensory, of multifactorial etiology, in which cluneal nerve entrapment plays an important role, finding an alternative to pain from this pathology. interventional management. The main objective of the study was to establish the efficacy of cluneal nerve block in chronic low back pain in patients older than 18 years from two hospitals in Bogotá.

Methods:

Observational, retrospective study, carried out in patients diagnosed with chronic low back pain and signs and symptoms of cluneal nerve entrapment or clunealgia leading to cluneal nerve block in whom pain intensity and duration of the analgesic effect were evaluated. in four moments.

Results:

45 patients were identified; of these, 11 did not present follow-up data. 93 % (n = 35) of the patients presented a VAS (visual analogue pain scale) greater than 7 prior to the procedure, 28 % (n = 11) presented immediate post-block pain improvement with a VAS less than 6, 57 % at the first control (n = 22) maintained the improvement achieved, and 10 % (n = 4) returned to their baseline state of pain. In the second, 10 % (n = 4) of the patients did not show changes in intensity, and 78.9 % (n = 30) maintained improvement in pain intensity.

Conclusions:

Cluneal nerve blocks are an avant-garde alternative for the temporary management of chronic low back pain that will make it possible to more objectively select patients who are candidates for fluoroscopy-guided intervention. Studies are proposed using type III studies such as randomized trials with groups where placebo is administered versus analgesic mixtures in patients with clunealgia.

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