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Naffziger sign
For sciatica or
herniatednucleus pulposus.
Nerve root irritation is produced by external jugular venous
compression by examiner.
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Naffziger’s test
For nerve root compression. Increase of aggravation of
pain or sensory disturbance over the
distribution of the involved nerve root
upon manual compression of the jugular
veins bilaterally confirms the presence of an extruded intervertebral disk
or other mass.
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