• World Neurosurg · Feb 2022

    Teflon Granuloma: A Common Cause of Recurrent Trigeminal Neuralgia.

    • Tao Sun, Wentao Wang, Qinghao Huang, Longshuang He, Yu Su, Ning Li, Jinlong Liu, and Chao Yang.
    • First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
    • World Neurosurg. 2022 Feb 1; 158: e612-e617.

    BackgroundTrigeminal neuralgia (TN) is a common pain syndrome of the nervous system,. Although about 90% patients who were refractory to medications could be free from pain after microvascular decompression (MVD), some patients did experience recurrence. The study aimed to analyze clinical characteristics of patients with recurrent TN, recurrence factors of TN, and prognosis after re-do MVD.MethodsClinical data and at least 12 months follow-up of patients with recurrent TN who underwent re-do MVD in our hospital from 2005 to 2020 were collected and analyzed.ResultsA total of 14 patients with recurrent TN were enrolled eventually; adhesive arachnoid membranes were found in all patients. Teflon granuloma was found in 10 patients, new neurovascular compression (NVC) in 3 patients, and vascular displacement in 1 patient. Pain disappeared in 12 patients and relieved in 2 patients, but 4 patients experienced mild facial numbness and 1 patient suffered from incision infection after re-do MVC. No serious surgery-related complications and pain recurrences were recorded.ConclusionsTeflon granuloma was the most common cause of TN recurrence in current study, new NVC was also saw in some patients. Patients with recurrent TN could get satisfactory results from re-do MVD.Copyright © 2021 Elsevier Inc. All rights reserved.

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