Temporal Pattern of Pain and Disability Following the Administration of a Selective Nerve Root Block in Lumbar Disc Herniation With Radiculopathy

BACKGROUND: Lumbar disc herniation with radiculopathy has a favorable natural history, and a selective nerve root block (SNRB) is an accepted treatment modality. This study aims to ascertain the temporal pattern of pain and disability following the administration of an SNRB in the management of lumbar disc herniation with radiculopathy because there is limited evidence regarding this issue in the published literature. METHODS: This prospective study included 50 patients who underwent an SNRB and were followed for 3 months. Numerical Rating Scale (NRS) for back and leg pain and Oswestry Disability Index (ODI) and Depression Anxiety Stress Scales-21 (DASS-21) scores were collected. At the final follow-up at 3 months, the number of patients who underwent surgery was ascertained. RESULTS: < 0.001) at 3 months. The mean preinjection depression score was higher in patients who had recurrence of pain and eventually underwent surgery. CONCLUSION: Early administration of an SNRB in the course of lumbar radiculopathy is recommended as it provides instantaneous and sustained relief of back and leg pain and disability in a majority of patients. CLINICAL RELEVANCE: SNRB should be administered early in the course of management of lumbar radiculopathy and should not be delayed until after other non-surgical modalities have failed. LEVEL OF EVIDENCE: 2.