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Severe low back pain with mild leg symptoms due to lumbar spine stenosis.

Abstract：

BACKGROUND:Some patients with lumbar spine stenosis (LSS) have severe low back pain (LBP) with only mild leg symptoms. The effects of decompression surgery for such patients remain unknown. METHODS:Of 818 patients with LSS who underwent surgical treatment in our institution from 2011 to 2019, eight patients had a numeric rating scale (NRS) score of ≥7 for LBP and 3≤ for leg pain. The patients' age, sex, clinical characteristics, preoperative leg symptoms, and level of LSS were investigated. The detailed characteristics of LBP, such as the disease duration, location of LBP, and exacerbating factors, were obtained from each patient. The NRS and Japanese Orthopaedic Association (JOA) scores for LBP were evaluated on admission, at 1 and 3 months postoperatively, and at the final follow-up (>1 year postoperatively). RESULTS:All patients were male with a mean age of 71.5 years (range, 57-82 years). LBP was exacerbated during walking in six patients and during an extension posture in three patients. The median duration of LBP was 2.9 years (range, 0.3-7 years). The stenosis was located at L2/3 in three patients, L3/4 in five patients, and L4/5 in seven patients. The stenosis involved one level in three patients and more than two levels in five patients. Other pathologies, such as sacroiliac joint lesions, facet pain, superior/middle cluneal nerve pain, and discogenic pain, were excluded by diagnostic anesthetic block and detailed physical examination. All patients underwent posterior decompression surgery without fusion. In all eight patients, the NRS score for LBP significantly improved from 7.6 (range, 7-10) to 1.7 (range, 0-3) and the JOA score improved from 13.1 (range, 4-19) to 21.8 (range, 18-27). CONCLUSION:A low proportion of patients showed walking-evoked severe LBP with mild leg symptoms due to lumbar spine stenosis. The patients' pain was improved by decompression surgery with satisfactory results.

journal_name

Br J Neurosurg

journal_title

British journal of neurosurgery

authors

Kanematsu R,Hanakita J,Takahashi T,Minami M,Miyasaka K,Shimauchi-Ohtaki H,Tomita Y

doi

10.1080/02688697.2020.1868402

subject

Has Abstract

pub_date

2021-01-19 00:00:00

pages

1-4

eissn

0268-8697

issn

1360-046X

pub_type

杂志文章

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Severe low back pain with mild leg symptoms due to lumbar spine stenosis.