The near-nerve sensory nerve conduction in tarsal tunnel syndrome.
The near-nerve sensory nerve conduction in the medial and lateral plantar nerves was studied in 25 cases of tarsal tunnel syndrome. Sensory nerve conduction was abnormal in 24 cases (96%) The most common abnormalities were slow nerve conduction velocities and dispersion phenomenon (prolonged duration of compound nerve action potentials). These two electrophysiological abnormalities are indicative of a focal segmental demyelination as the primary pathological process in tarsal tunnel syndrome.
D003711:Demyelinating Diseases / Q000175:diagnosis*; D004568:Electrodiagnosis / Q000379:methods*; D006801:Humans; D009431:Neural Conduction; D010525:Peripheral Nerves / Q000503:physiopathology*; D011930:Reaction Time / Q000502:physiology; D013641:Tarsal Tunnel Syndrome / Q000175:diagnosis*