The Association between the Cross-Sectional Area of the Dural Sac and Low Back Pain in a Large Population: The Wakayama Spine Study

• Hiroki Iwahashi,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Noriko Yoshimura,

  Affiliation Department of Joint Disease Research, 22nd Century Medical and Research Center, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113–8655, Japan

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• Hiroshi Hashizume ,

  * E-mail: hashizum@wakayama-med.ac.jp

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Hiroshi Yamada,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Hiroyuki Oka,

  Affiliation Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113–8655, Japan

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• Ko Matsudaira,

  Affiliation Department of Medical Research and Management for Musculoskeletal Pain, 22nd Century Medical & Research Center, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113–8655, Japan

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• Kazunori Shinto,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Yuyu Ishimoto,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Keiji Nagata,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Masatoshi Teraguchi,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Ryohei Kagotani,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Shigeyuki Muraki,

  Affiliation Department of Joint Disease Research, 22nd Century Medical and Research Center, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113–8655, Japan

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• Toru Akune,

  Affiliation Rehabilitation Services Bureau, National Rehabilitation Center for Persons with Disabilities, 1 Namiki 4-chome, Tokorozawa City, Saitama 359–8555, Japan

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• Sakae Tanaka,

  Affiliation Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113–8655, Japan

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• Hiroshi Kawaguchi,

  Affiliation Japan Community Health Care Organization Tokyo Shinjuku Medical Center, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160–8402, Japan

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• Kozo Nakamura,

  Affiliation Rehabilitation Services Bureau, National Rehabilitation Center for Persons with Disabilities, 1 Namiki 4-chome, Tokorozawa City, Saitama 359–8555, Japan

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• Akihito Minamide,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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• Yukihiro Nakagawa,

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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•  [ ... ],
• Munehito Yoshida

  Affiliation Department of Orthopaedic Surgery, Wakayama Medical University, 811–1 Kimiidera, Wakayama City, Wakayama 641–8510, Japan

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