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Updated: June 5, 2025
#Dislocation of the ulnar nerve# at the elbow results from sudden and violent flexion of the joint, the muscular effort causing stretching or laceration of the fascia that holds the nerve in its groove; it is predisposed to if the groove is shallow as a result of imperfect development of the medial condyle of the humerus, and by cubitus valgus.
The pain was intense, both bones of the forearm the ulnar and radius being shattered transversely, the ulnar poking through the flesh in an ugly blue wound. When Thayor and the doctor reached him, the Clown was holding the broken arm taut he had to keep up a steady pull, for with the slightest release the knotty sinews and muscles would cause the broken forearm to fly back at right angles.
Fracture of the Ulna. Etiology and Occurrence. Fractures of the ulna in the horse are not common in spite of the exposed position of the olecranon. This bone when broken, is usually fractured by heavy blows and any form of ulnar fracture is serious because of its function and position in relation to the joint capsule.
#The Ulnar Nerve.# The most common injury of this nerve is its division in transverse accidental wounds just above the wrist. In the arm it may be contused, along with the radial, in crutch paralysis; in the region of the elbow it may be injured in fractures or dislocations, or it may be accidentally divided in the operation for excising the elbow-joint.
#Dislocation of Nerves.# This injury, which resembles the dislocation of tendons from their grooves, is seldom met with except in the ulnar nerve at the elbow, and is described with injuries of that nerve.
Lady Burton still nursed the hope that Sir Richard was not quite dead. There was life in the brain, she persisted in saying. Would he revive? "For forty-eight hours," she tells us, "she knelt watching him." She could not shed a tear. Then she "had the ulnar nerve opened and strong electricity applied to make sure of his death."
The twisted bast is bent at the center; the thumb and forefinger of the left hand hold the loop, and the two strands are placed together. These are now rolled toward the knee as before, the hand giving extra pressure on the ulnar side, and then are rolled back toward the body with pressure on the radial side. When the end of a band is reached, a new one is rolled in, and the process is continued.
When it is injured at or above the elbow, there is paralysis of the flexor carpi ulnaris, the ulnar half of the flexor digitorum profundus, all the interossei, the two medial lumbricals, and the adductors of the thumb.
#Complete Division of a Mixed Nerve.# Complete division is a common result of accidental wounds, especially above the wrist, where the ulnar, median, and radial nerves are frequently cut across, and in gun-shot injuries. Changes in Structure and Function.
Epicritic sensibility is lost over the little finger, the ulnar half of the ring finger, and that part of the palm and dorsum of the hand to the ulnar side of a line drawn longitudinally through the ring finger and continued upwards. Protopathic sensibility is lost over an area which varies in different cases.
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