Abstract
Radial paralysis occupies the highest incidence rate among the damage carr injury of the periphral nerves and ther were 15 cases of radial paralysis reported to the clinicc of the Departmentt of Orthopedica, Showa Medical during the past 5 years. Their causes were 5 cases of oppression or contusion, 5 cases of erronious injection, 3 cases of operational mistake and 2 cases of other causes.
The present patient had a traffic accident and the fracture of the right humerus bone. He received the fixing by the use of the inside metal splint. But, when the gypsum bandage was removed, the patient complained of the radial paralysis. Upon removal of the scar, the radial nerve was found to lie embedded under the scar and there was no motility. And, moreover, the screw which was used in fixing the splint at the most proximal end was found to have penetrated through the trunk of the radial nerve at the point distal to its bifurcation into the musculus triceps brachil and the musculus intercostales. The radial paralysis disappeared on removal of thee screw.
It is considered indispensable, therefore, to insure the absence of paralysis prior to and also on an early stage after such operation.
