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|Year : 2015 | Volume
| Issue : 4 | Page : 638
Magnetic resonance imaging of sciatic nerve crush injury
Antonio Carota, Abdelhafid Mekideche, Anne-Sophie Knoepfli
Departments of Neurology and Radiology, Neurocenter GSMN, Genolier Clinic, Genolier, Switzerland
|Date of Web Publication||4-Aug-2015|
Clinique de Genolier, Route du Muids 3, CP-100 1272 Genolier
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Carota A, Mekideche A, Knoepfli AS. Magnetic resonance imaging of sciatic nerve crush injury. Neurol India 2015;63:638
Owing to alcohol intoxication, a 29-year-old man remained lying in the same position for 48 h, consequently sustaining a crush injury. Upon medical examination 2 months following the event, the patient presented with pain in the right sciatic nerve territory with concurrent anterior tibial nerve-like paresis. His electroneuromyography (ENMG) revealed a sciatic nerve axonal neuropathy. Magnetic resonance imaging (MRI) neurography indicated an enlarged right sciatic nerve with a high T2 signal [Figure 1] and [Figure 2]. These findings suggest that, following a crush injury, MRI neurography is a useful tool in confirming the diagnosis of axonal neuropathy. MRI changes are consistent with the possibility of a low axonal transport. , One-year post-episode, the recovery was nearly complete.
|Figure 1: Coronal plan 3 - dimension turbo spin - echo T2 weighted magnetic resonance imaging neurography of the injured right sciatic nerve along the long head of the biceps femoris. Sciatic nerve reveals enlargement and a high signal (arrow). T2 - weighted neurography uses sequences with long echo times (>90 ms) and radiofrequency signal pulses (to suppress signals from adjacent vessels) and frequency - selective fat suppression|
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|Figure 2: Transverse plan turbo spin - echo T2 weighted magnetic resonance imaging neurography of the injured right sciatic nerve (arrow) reveals enlargement and higher signal as compared to normal left sciatic nerve|
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[Figure 1], [Figure 2]