II. Epidemiology
- Least common form of Brachial Birth Trauma
III. Pathophysiology
- Injury to C7, C8, and T1 spinal nerves
IV. Signs: Clawhand Deformity
- Hand Intrinsic Muscle Weakness
- Grasp reflex absent on affected side
- Biceps Reflex and radial reflex present
-
Horner's Syndrome may be associated
- Occurs if T1 sympathetic fibers are affected
- Upper part of arm unaffected
V. References
- Goetz (1999) Neurology, Saunders, p. 259
- Bower (2001) Clin Fam Pract 3(2):401-27 [PubMed]