KLUMPKE’S PARALYSIS
Q. 1 Klumpke’s paralysis from a brachial plexus injury involves which of the following nerve cords?
| A |
C5, C6 |
|
| B |
C6, C7 |
|
| C |
C7, T1 |
|
| D |
C8, T1 |
Q. 1
Klumpke’s paralysis from a brachial plexus injury involves which of the following nerve cords?
| A |
C5, C6 |
|
| B |
C6, C7 |
|
| C |
C7, T1 |
|
| D |
C8, T1 |
Ans.
D
A
Explanation:
Klumpke’s paralysis is a form of paralysis involving the muscles of the forearm and hand, resulting from a brachial plexus injury in which the eighth cervical (C8) and first thoracic (T1) nerves are injured either before or after they have joined to form the lower trunk.
Q. 2
Klumpke’s palsy is due to injury to the following nerves?
| A |
Inferior trunk of the brachial plexus |
|
| B |
Superior trunk of the brachial plexus |
|
| C |
Subscapular nerve |
|
| D |
Ulnar nerve |
Ans.
Explanation:
The upper trunk (C5 and C6) is the most common area injured and results in the classic Erb palsy.
Injury to the lower trunk (C7–T1) produces a Klumpke palsy. Klumpke palsy is characterized by good shoulder function but decreased or absent hand function.
Brachial plexus injuries may also cause a Horner syndrome (unilateral miosis, ptosis, and facial anhidrosis) due to disruption of cervical sympathetic nerves.
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