Abstract
Purpose
This study aimed to demonstrate the impact of lumbar spinal stenosis (LSS) on LBP after cervical laminoplasty for cervical spinal stenosis by analyzing the clinical characteristics and surgical outcomes.
Methods
This retrospective cohort study analyzed 56 consecutive patients with cervical spinal stenosis who underwent cervical laminoplasty. Data on age, sex, Japanese Orthopaedic Association (JOA) scores, JOA Back Pain Evaluation Questionnaire (BPEQ), and visual analog scale (VAS) were collected. The patients with VAS for LBP ≥ 30 or more were included and divided into two groups: without LSS [LSS (−)]or with LSS [LSS (+)]. Preoperative clinical characteristics and postoperative changes were compared between the groups.
Results
Preoperative VAS for LBP were 50.7 ± 16.2 mm and 59.8 ± 19.5 mm in the LSS (+) and LSS (−), respectively (p = 0.09). Patients in the LSS (−) were younger (57.6 ± 11.2 vs. 70.7 ± 8.6, p < 0.001) and showed significantly milder preoperative lumbar symptoms in terms of JOA and BPEQ. Patients in the LSS (−) group showed more postoperative changes in low back pain (18.3 ± 26.4 vs. − 8.3 ± 37.6, p = 0.005) and lumbar function (10.8 ± 25.7 vs. − 2.0 ± 22.5, p = 0.04) at BPEQ, and higher recovery in terms of VAS of LBP (23.0 ± 23.8 mm vs. 5.3 ± 25.9 mm, p = 0.008) and buttocks and low limbs (12.5 ± 35.0 mm vs. − 4.3 ± 24.4 mm, p = 0.029). Nine patients in the LSS (+) group underwent lumbar surgery at 12.8 ± 8.5 months after cervical laminoplasty.
Conclusion
LBP improved after cervical laminoplasty in patients without lumbar stenosis.
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Data availability
The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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We would like to thank Editage (www.editage.com) for English language editing.
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Hideki Hayashi and Hirokuni Hashikata. The first draft of the manuscript was written by Hideki Hayashi and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Study approval was obtained from the Medical Research Institute Kitano Hospital ethics committee (Permission No.: 2005010).
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Hayashi, H., Hashikata, H., Sawada, M. et al. Low back pain improvement after cervical laminoplasty in patients without tandem lumbar stenosis. Eur Spine J 32, 4437–4443 (2023). https://doi.org/10.1007/s00586-023-07951-7
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DOI: https://doi.org/10.1007/s00586-023-07951-7