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Old 07-19-2012
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Anatomy Cervical spinal root injury?

I cannot understand this ques. If some one can please explain it to me.
Its from Kaplan Qbank
Patient with weakness of right upper limb elbow flexion, wrist flexion, wrist extension, arm abduction, also decreased sensation over deltoid and palmar aspect of 1st 3 digits. Which nerve root is injured?

C5
C6
C7
C8
T1
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Old 07-19-2012
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Default answer

Anyone ???
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Old 07-19-2012
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O_0
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One Step At a time
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no answer ?!
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Old 07-19-2012
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looks like erbs palsy - upper trunk of brachial plexus
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Old 07-19-2012
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the description fits with group of muscles supplied by musculocutaneous (C5,C6,C7), median (C6-T1), and radial nerve (C5-T1). no signs related to ulnar nerve (C8, T1).
the common root in all is C6 and C7 and distal muscles (of hand) are not involved i go for C6.
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Old 07-19-2012
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Elbow flexion- musculocutaneous C5-C7
Wrist flexion- Ulnar C8-T1
Wrist Extension- Radial C5-C8
Arm Abduction- Axillary C5-C6
Loss of sensation over deltoid- Axillary again
Loss of Palmar 1-3- Median C5-C8-T1

All nerve roots are injured

Possible causes? Thoracic outlet syndrome or Pancoast tumor?
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There are multiple signs of many injured nerve roots, musculocutaneous (c5-c7): impaired flex elbow, radial(c5-c8): wrist extension, median (c6-c8-t1): wrist flexion and axillary (c5-c6): deficit sensory over deltoid, mmmmm could be C6 which is the most comoon segment involve
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