Supinatorial Syndrome

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The supinator box syndrome is a nerve congestion syndrome of the radial nerve . The purely motor ramus profundus nervi radialis is damaged. It supplies the supinator muscle and especially the extensor fingers. Accordingly, the supinatorial syndrome manifests itself with a weakness in the extension of the fingers ("falling fingers"). There are no loss of sensitivity, which enables it to be differentiated from more proximal radial lesions . Etiologically, dislocations or fractures of the radial head , cuts and stab wounds , hypertrophy of the supinator muscle or paravenous injections (i.e. iatrogenic damage) can be considered.

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