Volume 22, Issue 2 (8-2008)                   Med J Islam Repub Iran 2008 | Back to browse issues page

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Samini F, Bahadorkhan G, Ehsaei M R, Kheradmand H. Intraforaminal and extraforaminal far lateral lumbar disc herniation ( a review of 63 cases). Med J Islam Repub Iran. 2008; 22 (2) :63-67
URL: http://mjiri.iums.ac.ir/article-1-49-en.html
Department of Neurosurgery, Ghaem Medical Center,Mashhad, Iran , SAMINIF@MUMS.ac.ir
Abstract:   (6160 Views)

  Abstract

  Background: Far lateral discal herniation is an uncommon disorder and is difficult

  to assess by physical examination alone. This study is designed to define clinical and

  epidemiological findings and to establish the indications of surgical and medical treatment for FLLDH.

  Methods: Between 2000 and 2005, a total of 2035 patients with lumbar disc herniation

  underwent surgical discectomy by the authors in several neurosurgical centers

  in Mashhad. Among these patients, 63 (3.1%) had FLLDH (42 men and 21 women).

  Clinically these patients had unilateral radicular pain with or without paresis. SLR

  was positive in 100% of cases. Conservative therapy consisting of bed rest, nonsteroidal

  anti-inflammatory drugs and physiotherapy had failed. We used a combination

  of classical interlaminar approach and the intertransverse route through a midline approach for the treatment of our patients.

  Results: From 63 cases in our series, 42 were men and 21 were women. 19 patients

  had extraforaminal and 44 had foraminal disc herniation. The most common level for

  far lateral discal herniation was L4-L5. Our patients had LBP in 43.6% (27 cases) and

  positive SLR and radicular leg pain in 100% (63 cases). In all patients leg pain was relieved immediately after surgery.

  Conclusion: FLLDH should be considered in all cases with lower limb radiculopathy.

  These patients have more severe radicular pain than patients with paracentral

  lumbar disc herniation. FLLDH happens more frequently at L4-L5 and L3-L4 levels.

  It can often be difficult to diagnose or easily overlooked on radiographic studies. In

  almost all cases, conservative treatment is unsuccessful and surgical treatment is recommended.

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Type of Study: Original Research | Subject: Neurosurgery

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