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【神經外科-吳建忠醫師答覆】
The following is cited from "Stereotaxic Midbrain Lesions for Central Dysesthesia and Phantom Pain, Preliminary Report" (J. Neurosurg. Vol. 30, Feb. 1969): "It was shown 25 years ago (in 1940's) by Walker that sectioning of the lateral spinothalamic and quintothalamic tracts in the mesencephalon at the level of the superior calliculus resulted in analgesia and thermanesthesia over the opposite half of the body. The open operation did not gain wide acceptance because of the occurrence of severe postoperative dysesthesias."
Provide you more references as follows:
1.WALKER, A. E. The spinothalamic tract in man. Archs Neurol. Psychiat., Chicago, 1940, 43:284-298.
2.WALKER, A. E. Somatotopic localization of spinothalamic and secondary trigeminal tracts in mesencephalon. Archs Neurol. Psychiat.,Chicago, 1942, 48:884-889.
3.WALKER, A. E. Relief of pain by mesencephalic tractomy. Archs Neurol. Psychiat., Chicago, 1942, 48:865-883.
4.WALKER, A.E. Central representation of pain.Res. Publs Ass. Res. Herr. merit. Dis., 1943, 23:63-85.
Thanks.
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