• Int Orthop · Aug 2009

    Clinical value of motor evoked potentials with transcranial magnetic stimulation in the assessment of lumbar spinal stenosis.

    • Xinyu Liu, Shunsuke Konno, Masabumi Miyamoto, Yoshikazu Gembun, Gen Horiguchi, and Hiromoto Ito.
    • Department of Orthopaedic Surgery, Nippon Medical School, Sendaki 1-1-5, Bunkyo-Ku, Tokyo, 113-8603, Japan. newyuliu@hotmail.com
    • Int Orthop. 2009 Aug 1; 33 (4): 1069-74.

    AbstractThe objective of this study was to evaluate the clinical usefulness of assessing motor evoked potentials (MEP) in lumbar spinal stenosis (LSS). Twenty-three LSS patients were enrolled. The preoperative data of MEP latency (MEPLT), clinical symptoms, Japanese Orthopaedic Association (JOA) scores for low back pain, visual analogue scale (VAS) for back pain, leg pain and numbness, walking distance and the minimal cross-sectional area (mCSA) of the dural sac were evaluated. The mean MEPLT was 42.1 +/- 2.8 ms. Fourteen patients had bilateral leg symptoms. The mean walking distance and mCSA were 302.1 +/- 302.8 m and 0.4 +/- 0.2 cm(2), respectively. The mean JOA score and VAS scores for back pain, leg pain and numbness were 15.9 +/- 4.8, 6.0 +/- 2.9, 7.7 +/- 1.9 and 7.3 +/- 3.0, respectively. MEPLT was related to the walking distance, limb symptoms and the VAS for numbness. MEPLT was significantly delayed in patients who showed a walking distance less than 500 m. MEP is useful in LSS assessment. It can reflect the subjective severity of motor disturbance and predict the neurological deficit prior to appearance.

      Pubmed     Full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…