keyhole craniotomy through retrosigmoid approach followed by microvascular decompression for primary trigeminal neuralgia:a report of 23 cases

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ID: 223629
2011
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Abstract
Objective To explore the surgical technique,effects,and complications of keyhole craniotomy through retrosigmoid approach followed by microvascular decompression for primary trigeminal neuralgia.Methods The craniotomy with a keyhole incision above postauricular hairline followed by microvascular decompression was performed in 23 patients with primary trigeminal neuralgia.Dissection of intracranial part of trigeminal nerve under microscope was done to search for the offending vessels,which were thereby freed and between which and the root entry zone(REZ) of trigeminal nerve the Teflon grafts were placed.Effects and complications were observed in follow-up,ranging from 1 month to 2 years.Results Out of 23 patients who were all found compression in REZ of trigeminal nerves by the offending vessels in operation,disappearance of symptoms post-surgery was found in 22 cases,face numbness on the surgical side in 3 cases and no effects in 1 case.Recurrence of pain was not observed in patients who had initially benefited from the surgery at the follow-up.Conclusion The keyhole craniotomy through retrosigmoid approach followed by microvascular decompression is safe and effective for primary trigeminal neuralgia,in which accurate technique during operation plays a vital role in the decrease of complications and the outcome post-surgery.
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Authors ;Gang-ge CHENG;Hong-wei MA;Lian-qiang DONG;Hui ZHANG;Yong-an HUANG;Bao-guo ZHANG;Chen WU
Journal frontiers in neurorobotics
Year 2011
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