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February 16 2015

Klumpke's Paralysis

Write a short note on Klumpke's Paralysis

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  • Last Comment by Neuros
Neuros
Neuros
February 16 2015 #

It is a lower trunk injury of the Brachial plexus. Some of the causes for the injury, include:

  • Forcible hyperabduction in a fall from a height
  • Malignant infiltration of lower trunk (Pancoast tumor)
  • Birth Injury

The injury leads to:

  • Claw hand deformity - lower trunk is made of C8 and T1 (Read: Brachial plexus)
  • Horner's syndrome: ptosis, miosis anhydrosis
  • Sensory loss along the ulnar border of the forearm and hand
  • Dry and scaly skin changes along the affected paralysed skin areas

The muscles paralysed are:

  • Intrinsic muscles of the hand (T1)
  • Ulnar flexors of the wrist and fingers (C8)

This leads to hyperextension at the MCP joints and flexsion at the interphalangeal joints 

References:

  1. B D Chaurasia. Human Anatomy (Volume 1; Edition 4). Upper Limb: The Axilla (Pg 53)
  2. Neeta V Kulkarni. Clinical Anatomy (A problem solving approach) Edition 2. Section 2: Upper Extremity: Chapter 12 Brachial plexus and Axillary vessels (Pg 101)