Full Endoscopic Decompression for a Misdiagnosed Far-Out Syndrome (L5/S1 Extraforaminal Stenosis) in an Elderly Patient with L5 Radiculopathy: Case Report

Author:

Choi Seung Jin,Ham Chang Hwa,Moon Hong Joo,Kim Joo Han,Park Youn-Kwan,Kwon Woo-KeunORCID

Abstract

We present a case of a L5/S1 extraforaminal stenosis (EFS), also known as far-out syndrome, in which ineffective multiple previous fusion surgeries were performed because of misdiagnosis. An 83-year-old man, complaining of back and left sided leg pain along the L5 dermatome for 5 years visited our institute claiming persistent pain even after 2 fusion surgeries at another hospital. A new magnetic resonance image (MRI) scan with a half coronal T1-weighted sequence revealed left L5/S1 EFS and resultant L5 nerve root compression. Because of the patient’s old age, history of angina and anti-platelet medications, a minimally invasive full-endoscopic decompression was performed. Afterwards the patient experienced immediate relief of the radicular pain, satisfied with the surgery. Diagnosis of L5/S1 EFS can be challenging especially when only routine sagittal/axial MRI scans are provided. Half coronal plane T1-weighted image MRI can be extremely helpful in diagnosis of this distinct pathology. Through this case report, we would like to emphasize the significance of half coronal MRI in diagnosis of L5/S1 EFS and also show a representative successful full-endoscopic decompression for the disease.

Publisher

Korean Neuro-Pain Society

Subject

General Chemical Engineering

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Overview and Prevention of Complications During Fully Endoscopic Lumbar Spine Surgery;Journal of Minimally Invasive Spine Surgery and Technique;2023-10-30

2. Why Endoscopic Spine Surgery?;Neurospine;2023-03-31

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