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Question 1#

The most frequent lesion found in obstetrical brachial plexus injuries involves:

a. All cervical roots
b. Only C8 and T1
c. Only C6 and C7
d. Upper plexus C5, C6 and C7
e. Only C5

Correct Answer is D


Upper plexus C5, C6 and C7.


  1. Hentz VR. Obstetric brachial plexus palsy. In: Plastic Surgery. Mathes D, Ed; Hentz VR, Volume Editor. Saunders Elsevier, 2006.
  2. Smith NC, Rowan P, Benson LJ, Ezaki M, Carter PR. Neonatal brachial plexus palsy outcome of absent biceps function at three months of age. J Bone Joint Surg [Am] 2004; 86(10): 2163-70.