Objectives: A clinical disorder known as degenerative lumbar spine disease (DLSD) is characterized by persistent low back pain (LBP) coupled with radiculopathy and other signs of neurologic impairment. Using patient-reported pain outcome assessment tools, this study evaluated the pain outcome of non-instrumented lumbar decompressive surgery for DLSD.
Materials and methods: A prospective longitudinal research was conducted. Using the metric visual analog scale (VAS) score and the Oswestry disability index (ODI), consenting patients who underwent non-instrumented lumbar decompressive surgery for symptomatic DLSD were evaluated for radicular pain and LBP. The evaluation was conducted both immediately before surgery and 6 months after surgery. Data generated by comparing the pre-operative and post-operative VAS and ODI scores were then analyzed using descriptive and inferential statistics.
Results: Sixty-seven patients in total completed the study. Thirty-six (54%) males and 31 (46%) females, with a mean age and body mass index of 55.28 years and 29.5 k/m2, respectively. At 6 months postoperatively, there was significant pain reduction from the pre-operative baseline VAS for LBP (67.12-32.74) with P < 0.001, VAS for radicular pain (75.39-32.75) with P < 0.001, and ODI (65.30-27.66) with P < 0.001. There was a greater decrease in radicular pain than in LBP following lumbar decompressive only surgery (P = 0.03).
Conclusion: Patients with symptomatic DLSD and high pre-operative back pain scores without considerable listhesis should anticipate a significant reduction in radicular and back pain intensity, as well as pain-related functional disability, 6 months after non-instrumented lumbar decompressive surgery.
Keywords: Decompressive surgery; Degenerative lumbar spine disease; Pain outcome.
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