Introduction: L5 radiculopathy has characteristic clinical and electrodiagnostic features including: radicular pain; weakness or denervation of hip abductors, ankle dorsiflexors, and inverters; and pre-ganglionic dorsal foot sensory loss. It is unknown how often patients with this distinctive clinical-electrodiagnostic presentation have isolated L5-root compression on neuroimaging or more widespread, possibly age-related, lumbar neuroforaminal or spinal stenosis.
Methods: A study-blinded neuroradiologist quantitated lumbosacral neuroforaminal, lateral recess, and spinal stenosis in 26 consecutive patients with unilateral, clinically and EMG-ascertained L5 monoradiculopathy, and quantitated a global neuroforaminal and spinal stenosis score (SSS).
Results: Only 9 patients (35%) had isolated L5-root compression, 14 (54%) had multi-root compression, and 3 (12%) had normal neuroimaging. Increasing age correlated with SSS, and the 9 patients with isolated L5-root compression were significantly younger than patients with multi-root involvement.
Conclusions: This study underscores the role of clinical and electrodiagnostic data when interpreting lumbosacral neuroimaging, particularly in older patients.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/mus.24170 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparison of clinical, electrophysiological, sonographic and MRI features in CIDP.
J Neurol Sci
October 2015
Department of Neurology, St. Josef Hospital, Ruhr-University, Bochum, Germany. Electronic address:
Introduction: We investigated the applicability of nerve ultrasound and magnetic resonance imaging (MRI) in chronic inflammatory demyelinating polyneuropathy (CIDP).
Methods: We systematically examined several nerves with ultrasound and the lumbar roots and tibial nerve in the popliteal fossa of nine CIDP patients with MRI additionally to the nerve conduction studies.
Results: Patients with overall disability sum score (ODSS) 2-3 were characterised by normal fascicular structure in MRI and ultrasound.
Diffuse age-related lumbar mri changes confound diagnosis of single (L5) root lesions.
Muscle Nerve
July 2014
Department of Neurology and Neuroradiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 673, Rochester, New York, 14642, USA.
Introduction: L5 radiculopathy has characteristic clinical and electrodiagnostic features including: radicular pain; weakness or denervation of hip abductors, ankle dorsiflexors, and inverters; and pre-ganglionic dorsal foot sensory loss. It is unknown how often patients with this distinctive clinical-electrodiagnostic presentation have isolated L5-root compression on neuroimaging or more widespread, possibly age-related, lumbar neuroforaminal or spinal stenosis.
Methods: A study-blinded neuroradiologist quantitated lumbosacral neuroforaminal, lateral recess, and spinal stenosis in 26 consecutive patients with unilateral, clinically and EMG-ascertained L5 monoradiculopathy, and quantitated a global neuroforaminal and spinal stenosis score (SSS).
Endoscopic lumbar discectomy: Experience of first 100 cases.
Indian J Orthop
April 2010
Department of Spine Surgery, Chirayu Hospital, Ahmedabad, India.
Background: Various modalities of treatment from standard discectomy, microdiscectomy, percutaneous discectomy, and transforaminal endoscopic discectomy have been in use for lumbar intervertebral disc prolapse. The access to spine is kept to a minimum without stripping paraspinal muscles minimizing muscle damage by posterior interlaminar endoscopic approach. The aim of this study was to evaluate technical problems, complications, and overall initial results of microendoscopic discectomy.
View Article and Find Full Text PDFSpinal somatosensory evoked potential evaluation of acute nerve-root injury associated with pedicle-screw placement procedures: an experimental study.
J Orthop Res
March 2003
Department of Orthopaedics, College of Medicine, National Cheng Kung University Hospital, 138 Sheng-Li Road, Tainan 704, Taiwan, ROC.
Pedicle screws for spinal fixation risk neural damage because of the proximity between screw and nerve root. We assessed whether spinal somatosensory evoked potential (SSEP) could selectively detect pedicle-screw-related acute isolated nerve injury. Because pedicle screws are too large for a rat's spine, we inserted a K-wire close to the pedicle in 32 rats, intending not to injure the nerve root in eight (controls), and to injure the L4 or L5 root in 24.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!