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Other Upper Extremity Mononeuropathies (Axillary, Musculocutaneous, Suprascapular, Spinal Accessory, etc…)

Last updated on Thursday, April 30 2009 by blondarb

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Nerve Conductions Studies
 
Median sensory recording the index and middle fingers.

Ulnar sensory recording the ring finger.

Radial sensory recording the dorsal thumb.

Lateral antebrachial cutaneous sensory recording the forearm.

Median motor recording the abductor pollicis brevis with F-Waves.

Ulnar motor recording the abductor digiti minimi with F-Waves


In addition, perform bilateral studies on the suspected involved nerve as needed:

 
Musculocut (m)       biceps                              axilla and Erb’s Pt.

Axillary (m)            deltoid                                      Erb’s Pt.

Spinal Access (m)    trapezius                          posterior neck triangle


Needle Examination

Perform needle examination on the symptomatic limb.  Test the minimum of one muscle innervated by the C5, C6, C7, C8 and T1 spinal roots (see Appendix C) including the muscles affected by the above nerve lesions.  If the muscles are abnormal, the examination should include additional muscles innervated by different root, trunk  and cord levels to localize the lesion.  Perform needle exam on the asymptomatic limb muscles for comparison as needed.

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