What is a common physical manifestation of Klumpke's palsy?

Klumpke's palsy is a type of brachial plexus injury that occurs when the lower trunk of the brachial plexus is affected, typically due to shoulder dystocia during birth or traumatic injuries. A common physical manifestation of Klumpke's palsy is the characteristic "claw hand." This occurs due to the weakness or paralysis of the intrinsic muscles of the hand, particularly the lumbricals and interossei, which are crucial for maintaining the normal position of the fingers.

In this condition, the patient often presents with a classic position where the fingers are extended at the metacarpophalangeal joints and flexed at the proximal and distal interphalangeal joints, resembling a claw. The ulnar nerve, often implicated in Klumpke's palsy, innervates many of the intrinsic muscles responsible for finger movements, thus leading to this distinct deformity.

The other options mention different types of nerve injuries, but they do not align with the specific characteristics of Klumpke's palsy. Wrist drop is indicative of radial nerve injury, the hand of benediction is associated with median nerve injuries, and the waiter's tip hand is typical of upper trunk brachial plexus injuries that