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Richard Brannegan, MD, Russell Bartt, MD 

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1 Second Lumbrical Muscle Recordings Improve Localization in Severe Carpal Tunnel Syndrome 
Richard Brannegan, MD, Russell Bartt, MD  Archives of Physical Medicine and Rehabilitation  Volume 88, Issue 2, Pages (February 2007) DOI: /j.apmr Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

2 Fig 1 Stimulation and recording sites for second lumbrical CMAP.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr ) Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

3 Fig 2 Upper trace: no APB CMAP, positive deflection from volume conducted lumbrical muscle potential. Lower trace: second lumbrical (2L) CMAP. Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr ) Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

4 Fig 3 Recording electrode site just radial to the third metacarpal (see fig 1). Upper trace: second lumbrical CMAP with median nerve stimulation at the wrist. Lower trace: first palmar and second dorsal interosseous muscle (INT) CMAP with ulnar nerve stimulation at wrist. Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr ) Copyright © 2007 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions


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