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Injury to Erb's point is commonly sustained at birth or from a fall onto the shoulder.The nerve roots normally involved are C5 and partly C6. Symptoms include paralysis of the biceps, brachialis, and coracobrachialis (through the musculocutaneous nerve); the brachioradialis (through the radial nerve); and the deltoid (through the axillary nerve).
Erb's palsy is a paralysis of the arm caused by injury to the upper group of the arm's main nerves, specifically the severing of the upper trunk C5–C6 nerves. These form part of the brachial plexus , comprising the ventral rami of spinal nerves C5–C8 and thoracic nerve T1.
Erb's palsy, also known as brachial palsy, involving paralysis of an arm; Spinal muscular atrophy, also known as wasting palsy; Progressive supranuclear palsy, a degenerative disease; Squatter's palsy, a common name for bilateral peroneal nerve palsy that may be triggered by sustained squatting [3] [4] [5] Third nerve palsy, involving cranial ...
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Bilateral absence of the reflex may be linked to damage to the infant's central nervous system, while a unilateral absence could mean an injury due to birth trauma (e.g., a fractured clavicle or injury to the brachial plexus). Erb's palsy or some other form of paralysis is also sometimes present in such cases. [12]
Wartenberg's sign is a neurological sign consisting of involuntary abduction of the fifth (little) finger, caused by unopposed action of the extensor digiti minimi. [1] [2] ...
Klumpke's paralysis is a variety of partial palsy of the lower roots of the brachial plexus. [1] [2] The brachial plexus is a network of spinal nerves that originates in the back of the neck, extends through the axilla (armpit), and gives rise to nerves to the upper limb.
Broken humerus–The radial nerve can be damaged if the humerus (the bone of the arm) is broken because it runs through the radial groove on the lateral border of this bone along with the deep brachial artery. Lead poisoning–Wrist drop is associated with lead poisoning due to the effect of lead on the radial nerve. [1]