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J Korean Assoc EMG Electrodiagn Med 1999;1(1):76-82.
Published online January 1, 1999.
Comparison of Medial plantar Nerve Conduction Studies
Abstract
Objectives : To determine a reliable and convenient method of the medial plantar nerve action potential in the diagnosis of neuropathic foot diseases such as entrapment syndrome and polyneuropathy. Methods : Medial plantar nerve action potentials using Ponsford's, Oh's, and Saeed's methods on 60 healthy Koreans were checked and compared. Results : 1) The mean values of the latency, amplitude and conduction velocity of medial plantar sensory nerve conduction study by using Ponsford'smethod were 3.13 ± 0.59 msec, 11.47 ± 5.03 ? V and 52.95 ± 7.05m/sec, respectively. 2) The mean values of the latency, amplitude and conduction velocity of medial plantar sensory nerve conduction study by using Oh's method were 4.55 ± 0.47 msec, 7.96 ± 4.12 ?V, 45.70 ± 4.99 m/sec, respectively. 3) The mean valyes of the latency, amplitude and conduction velocity of medial plantar mixed nerve conduction study by using Saeed's method were 2.58 ± 0.49 msec, 17.21 ± 9.01 ?V, 53.84 ± 8.43 m/sec, respectively. 4) The rate of evoked action potential of the medial plantar nerve conduction study by using Ponsford's, Oh's and Saeed's methods, were 81.7%, 336.7%, 93.3%, respectively. Conclusion : The most reproduccible response of medial plantar nerve conduction study was obtained by Ponsford's and Saeed's methods, especialy by Saeed's method over 7th decades.
Key Words: Medial plantar nerve, Neuropathic foot disease, Ponsford's method, Saeed's method, Oh's method


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