Development of new electrophysiological diagnostic methods for the minimally invasive spine surgery.

• Project/Area Number: 25462304
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Orthopaedic surgery
• Research Institution: Wakayama Medical University
• Principal Investigator: Iwasaki Hiroshi 和歌山県立医科大学, 医学部, 講師 (70438274)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 腰部脊柱管狭窄症 / 高位診断 / 電気生理学的検査 / 腰椎椎間孔部狭窄症 / 遠位潜時 / 腰椎椎間孔部障害 / 神経障害 / 腰椎 / 電気生理学的診断

Outline of Final Research Achievements

A lack of understanding of these conditions or inadequate treatment of this type of stenosis may cause failed back surgery syndrome. Therefore, the establishment of techniques to examine any functional abnormality of the nerve is essential. So we developed a new effective approach to the diagnosis of extraforaminal stenosis at the lumbosacral junction using the existing electrophysiological evaluation technique. We sampled the data and also assessed in 350 patients.
This study proved that this methods were reliable and reproducible. The technique provides a valuable diagnostic aid for patients with extra¬foraminal stenosis.

Research Products

• [Journal Article] Development of a support tool for the clinical diagnosis of symptomatic lumbar intra and/or extra-foraminal stenosis. (2015)
  • Author(s): Yamada H, Oka H, Iwasaki H, et. al
  • Journal Title: Journal of Orthopaedic Science Volume: 20 Pages: 811-877
  • Peer Reviewed
• [Journal Article] Improved diagnostic accuracy of lumbar intra- and/or extra-foramminal stenosis by use of three dimensional MR imaging : comparison with conventional MR imaging. (2015)
  • Author(s): Yamada H, Terada M, Iwasaki H, et. al
  • Journal Title: Journal of Orthopaedic Science Volume: 20(2) Pages: 287-294
  • Peer Reviewed
• [Journal Article] Extreme lateral interbody fusion(XLIF®)における術中神経モニタリングの有用性． (2015)
  • Author(s): 岩﨑 博、山田 宏、吉田宗人、他
  • Journal Title: 整形外科最小侵襲手術ジャーナル Volume: 76 Pages: 61-68
• [Journal Article] A new electrophysiological method for the diagnosis of extraforaminal stenosis at L5-s1. (2014)
  • Author(s): Iwasaki H, Yoshida M, Yamada H, Hashizume H, Minamide A, Nakagawa Y, Kawai M, Tsutsui S.
  • Journal Title: Asian Spine J Volume: 8 Issue: 2 Pages: 145-149
  • DOI: 10.4184/asj.2014.8.2.145
  • Peer Reviewed / Open Access
• [Journal Article] A new electrophysiological method for the diagnosis of extraforaminal stenosis at L5-S1 (2014)
  • Author(s): H. Iwasaki, M. Yoshida, H. Yamada, et. al
  • Journal Title: Asian spine journal Volume: 印刷中
  • Peer Reviewed
• [Journal Article] 腰部脊柱管狭窄症における画像・電気生理学的診断上第5腰神経重複病変の頻度 (2013)
  • Author(s): 岩﨑博、吉田宗人、山田宏、他
  • Journal Title: Journal of spine research Volume: 4巻9号 Pages: 1351-1355
  • Peer Reviewed
• [Presentation] 各種脊椎脊髄術中モニタリングの特徴と今後の展望 (2015)
  • Author(s): 岩﨑 博, 山田 宏, 中川幸洋, 他
  • Organizer: 第45回日本臨床神経生理学会学術大会
  • Place of Presentation: 大阪
  • Year and Date: 2015-11-05
• [Presentation] ディベート3：腰部脊柱管狭窄症：選択除圧派 (2014)
  • Author(s): 岩﨑 博
  • Organizer: 第43回日本脊椎脊髄病学会学術集会
  • Place of Presentation: 京都
• [Presentation] 腰椎椎間孔部狭窄症に対する電気生理学的機能診断法の有用性 (2014)
  • Author(s): 岩﨑 博
  • Organizer: 第43回日本脊椎脊髄病学会学術集会
  • Place of Presentation: 京都
• [Presentation] 腰椎椎間孔外狭窄症診断における脊髄神経刺激末梢筋誘発電位の遠位潜時を用いた機能診断法の有用性 (2014)
  • Author(s): 岩﨑 博
  • Organizer: 第87回日本整形外科学会学術総会
  • Place of Presentation: 神戸市
• [Presentation] バイポーラ-型凝固鑷子を利用した腰椎椎間孔部狭窄症に対する術中電気生理学的診断法 (2013)
  • Author(s): 岩﨑 博
  • Organizer: 第121回中部日本整形外科災害外科学会学術集会
  • Place of Presentation: 名古屋市