Klumpke

Klumpke refers to a medical eponym associated with a type of brachial plexus injury known as Klumpke's palsy, typically involving the lower trunk of the brachial plexus (C8-T1). The condition is named after the clinician who first described it, and it can occur in both newborns and adults.

In neonates, Klumpke’s palsy usually results from traction on the neck during difficult or breech delivery. It presents with weakness or paralysis of the intrinsic hand muscles, leading to a characteristic hand posture often described as a claw hand, and may be accompanied by sensory loss in the medial forearm and hand. Horner’s syndrome, due to concurrent injury of the sympathetic chain at T1, can also be seen in some cases.

In adults, Klumpke’s palsy can follow severe trauma such as falls, motor vehicle accidents, or shoulder girdle injuries that stretch or compress the lower brachial plexus. Presentation is similar to the neonatal form but may reflect additional trauma to surrounding structures.

Diagnosis is clinical, supported by neurologic examination. Electromyography and nerve conduction studies help assess the extent of injury, and imaging such as MRI may delineate nerve root involvement.

Treatment focuses on restoring function and preventing joint contractures. Conservative management includes physical and occupational therapy, range-of-motion exercises, and splinting. Surgical options, such as nerve grafting or transfers, may be considered for those with limited or no recovery after several months, typically by a brachial plexus specialist.

Prognosis varies with age and injury extent. Many newborns recover some hand function over months, while adults or severe neonatal injuries may have lasting deficits despite therapy.