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a form of pressure paralysis affecting the arm and caused by compression of the infraclavicular brachial plexus or radial nerve by the crosspiece of a crutch.
Synonym(s): crutch palsy
the temporary or permanent loss of sensation or muscle control resulting from pressure on the radial nerve by a crutch. The radial nerve passes under the axillary area superficially. Pressure, often caused by mismatching of the height of the patient and the crutch, can lead to paralysis of the elbow and wrist extensors.