Journal List > J Korean Neurotraumatol Soc > v.3(2) > 1084013

Kim, Park, Nam, Kim, Hwang, and Min: Lumbar Dorsal Ramus Block for Low Back Pain



The goal of this study was to establish the benefits and prognostic factors of lumbar dorsal ramus block (DRB) for low back pain.


A retrospective analysis was done with the data obtained from 344 patients with low back pain. The lumbar dorsal rami of L3, 4, 5 were blocked with 0.5% bupivacaine hydrochloride and methylprednisolone acetate. Visual analogue scale (VAS) was evaluated at 2 weeks, 1 month and 3 months and compared with pretreatment values. It was considered to be successful when the VAS grade at 3 months was improved more than 50%.


The patients had underlying disorders like as sprain (172), spinal stenosis (67), lumbar fracture (36), herniated lumbar disc (35), acute post-operative pain (8), and chronic post-operative pain (26) with success rate of 62.8%, 22.4%, 58.3%, 22.9%, 87.5%, and 34.6%, respectively.


In sprain, the patients in young age (<60 years) and without leg pain showed good response to DRB.

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