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Please use this identifier to cite or link to this item: http://hdl.handle.net/10564/3787

Title: The critical cutoff point of the Zurich Claudication Questionnaire and the Japanese Orthopaedic Association score indicating locomotive syndrome in patients with lumbar spinal canal stenosis.
Other Titles: 腰部脊柱管狭窄症において、Zurich Claudication Questionnaire とJapanese Orthopaedic Association scoreに、ロコモティブシンドロームを示すカットオフ値が存在する
Authors: Araki, Masafumi
Nonoshita, Hiroshi
Kitano, Shuji
Shigematsu, Hideki
Tanaka, Masato
Kawasaki, Sachiko
Suga, Yuma
Yamamoto, Yusuke
Tanaka, Yasuhito
Issue Date: 4-Apr-2020
Publisher: Elsevier
Citation: Journal of orthopaedic science Vol.26 No.2 p.290-294 (2021 Mar)
Abstract: Background: Locomotive syndrome (LS) is a condition of decreased mobility caused by disorders of the locomotive organs. Lumbar spinal stenosis (LSS) is a LS disorder. The Japanese Orthopaedic Association score (JOA score) and the Zurich Claudication Questionnaire (ZCQ) are international evaluation tools for LSS. However, the relationship between LS and JOA score or ZCQ is unknown. This study aimed to clarify the correlations between LS progression and the values/parameters of the JOA score or ZCQ and to determine the critical cutoff point of the JOA score or ZCQ that indicates LS progression. Methods: We recruited preoperative LSS patients (n = 82). Patients' mean age was 73.4 years. The study participants were evaluated using the 25-question Geriatric Locomotive Function Scale (GLFS), JOA score, and ZCQ (which consists of symptom severity and physical function), and the patients' health-related quality of life was assessed using EuroQoL-5 dimension (EQ-5D) utility values and the EuroQoL-visual analog scale (EQ-VAS). We investigated the correlations between the 25-question GLFS and each clinical variable and evaluated the critical cutoff point of each international evaluation tool to detect LS. Results: There was a statistically significant correlation between 25-question GLFS and each clinical evaluation tool. LSS patients with LS showed significantly worse scores in the evaluation tools than LSS patients without LS. Moreover, we found that critical cutoff points of 17.5 on JOA score, 3.1 on ZCQ-symptom, and 2.3 on ZCQ-function could detect LS. Conclusions: A statistically significant correlation exists between the 25-question GLFS and the JOA score or ZCQ. It might be important to perform decompression surgery for LSS patients before they reach the cutoff values of the several clinical evaluation tools to avoid LS progression. Study design: Clinical prospective case-control study.
Description: 博士(医学)・乙第1471号・令和2年9月30日
© 2020 The Japanese Orthopaedic Association. Published by Elsevier B.V. All rights reserved.
URI: http://hdl.handle.net/10564/3787
ISSN: 09492658
DOI: https://doi.org/10.1016/j.jos.2020.02.019
Academic Degrees and number: 24601B1471
Degree-granting date: 2020-09-30
Degree name: 博士(医学)
Degree-granting institutions: 奈良県立医科大学
Appears in Collections:2020年度

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