Minimally Invasive Resection of an Extradural Far Lateral Lumbar Schwannoma with Zygapophyseal Joint Sparing: Surgical Nuances and Literature Review

Introduction. Spinal schwannomas are benign nerve sheath tumors. Completely extradural schwannomas of the lumbar spine are extremely rare lesions, accounting for only 0,7–4,2% of all spinal NSTs. Standard open approaches have been used to treat these tumors, requiring extensive muscle dissection, la...

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Main Authors: Vítor M. Gonçalves, Bruno Santiago, Vítor C. Ferreira, Manuel Cunha e Sá
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Case Reports in Medicine
Online Access:http://dx.doi.org/10.1155/2014/739862
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author Vítor M. Gonçalves
Bruno Santiago
Vítor C. Ferreira
Manuel Cunha e Sá
author_facet Vítor M. Gonçalves
Bruno Santiago
Vítor C. Ferreira
Manuel Cunha e Sá
author_sort Vítor M. Gonçalves
collection DOAJ
description Introduction. Spinal schwannomas are benign nerve sheath tumors. Completely extradural schwannomas of the lumbar spine are extremely rare lesions, accounting for only 0,7–4,2% of all spinal NSTs. Standard open approaches have been used to treat these tumors, requiring extensive muscle dissection, laminectomy, radical foraminotomy, and facetectomy. In this paper the authors present the case of a minimally invasive resection of a completely extradural schwannoma. Operative technique literature review is presented. Material & Methods. A 50-year-old woman presented with progressive complains of chronic right leg pain and paresthesia. The magnetic resonance imaging revealed a giant well-encapsulated dumbbell-shaped extradural lesion at the L3-L4 level. The patient underwent a minimally invasive gross total resection of the tumor using a tubular expandable retractor system. Results. The patient had complete resolution of radiculopathy in the immediate postoperative period and she was discharged home, neurologically intact, on the second postoperative day. Postoperative MRI demonstrated no evidence of residual tumor. At latest follow-up (18 months) the patient remains asymptomatic. Conclusion. Although challenging, this minimally invasive procedure is safe and effective, being an appropriate alternative, with many potential advantages, to the open approach.
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spelling doaj-art-dd21486356f64657a23b67aedffd81572025-08-20T03:24:26ZengWileyCase Reports in Medicine1687-96271687-96352014-01-01201410.1155/2014/739862739862Minimally Invasive Resection of an Extradural Far Lateral Lumbar Schwannoma with Zygapophyseal Joint Sparing: Surgical Nuances and Literature ReviewVítor M. Gonçalves0Bruno Santiago1Vítor C. Ferreira2Manuel Cunha e Sá3Neurosurgery Department, Garcia de Orta Hospital, Avenida Torrado da Silva, 2801-951 Almada, PortugalNeurosurgery Department, Garcia de Orta Hospital, Avenida Torrado da Silva, 2801-951 Almada, PortugalNeurosurgery Department, Garcia de Orta Hospital, Avenida Torrado da Silva, 2801-951 Almada, PortugalNeurosurgery Department, Garcia de Orta Hospital, Avenida Torrado da Silva, 2801-951 Almada, PortugalIntroduction. Spinal schwannomas are benign nerve sheath tumors. Completely extradural schwannomas of the lumbar spine are extremely rare lesions, accounting for only 0,7–4,2% of all spinal NSTs. Standard open approaches have been used to treat these tumors, requiring extensive muscle dissection, laminectomy, radical foraminotomy, and facetectomy. In this paper the authors present the case of a minimally invasive resection of a completely extradural schwannoma. Operative technique literature review is presented. Material & Methods. A 50-year-old woman presented with progressive complains of chronic right leg pain and paresthesia. The magnetic resonance imaging revealed a giant well-encapsulated dumbbell-shaped extradural lesion at the L3-L4 level. The patient underwent a minimally invasive gross total resection of the tumor using a tubular expandable retractor system. Results. The patient had complete resolution of radiculopathy in the immediate postoperative period and she was discharged home, neurologically intact, on the second postoperative day. Postoperative MRI demonstrated no evidence of residual tumor. At latest follow-up (18 months) the patient remains asymptomatic. Conclusion. Although challenging, this minimally invasive procedure is safe and effective, being an appropriate alternative, with many potential advantages, to the open approach.http://dx.doi.org/10.1155/2014/739862
spellingShingle Vítor M. Gonçalves
Bruno Santiago
Vítor C. Ferreira
Manuel Cunha e Sá
Minimally Invasive Resection of an Extradural Far Lateral Lumbar Schwannoma with Zygapophyseal Joint Sparing: Surgical Nuances and Literature Review
Case Reports in Medicine
title Minimally Invasive Resection of an Extradural Far Lateral Lumbar Schwannoma with Zygapophyseal Joint Sparing: Surgical Nuances and Literature Review
title_full Minimally Invasive Resection of an Extradural Far Lateral Lumbar Schwannoma with Zygapophyseal Joint Sparing: Surgical Nuances and Literature Review
title_fullStr Minimally Invasive Resection of an Extradural Far Lateral Lumbar Schwannoma with Zygapophyseal Joint Sparing: Surgical Nuances and Literature Review
title_full_unstemmed Minimally Invasive Resection of an Extradural Far Lateral Lumbar Schwannoma with Zygapophyseal Joint Sparing: Surgical Nuances and Literature Review
title_short Minimally Invasive Resection of an Extradural Far Lateral Lumbar Schwannoma with Zygapophyseal Joint Sparing: Surgical Nuances and Literature Review
title_sort minimally invasive resection of an extradural far lateral lumbar schwannoma with zygapophyseal joint sparing surgical nuances and literature review
url http://dx.doi.org/10.1155/2014/739862
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