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This monograph is essentially a review of the literature, mainly American, on section of the sensory root of the fifth cranial nerve for trigeminal neuralgia plus the author's personal observations on sixty-five cases which were operated on by various French surgeons.
The major part of the subject matter concerns the occurrence of of keratitis following division of the sensory root. Hartmann discusses such a keratitis as being due to a direct lesion of the ganglion, to palpebral malocclusion, to trauma of an anesthetic cornea and as occurring in the absence of any of the preceding factors and consequently presenting the characteristics of an actual trophic lesion. To grasp the significance of the author's explanation of the pathogenesis of such a keratitis, it is necessary to keep in mind the physiologic results which have been observed to follow the operation. The author has confirmed the preservation of deep sensibility in the
Retrogasserian Neurotomy—The Physiologic and Pathologic Consequences. Contribution to the Study of Neuroparalytic Keratitis. Arch NeurPsych. 1924;12(4):485–486. doi:10.1001/archneurpsyc.1924.02200040134009
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