ArticleJournal of neurology2007
Lumbar spinal stenosis: assessment of cauda equina involvement by electrophysiological recordings.
Article in Journal of neurology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 42 citations in OpenAlex.
- Old technique, new applications: can the H-reflex be a possible real-time indicator in endoscopic surgery for decompression of acute disc herniation at the S1 root?European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026Article
- The Diagnosis and Treatment of Degenerative Changes of the Lumbar Spine.Deutsches Arzteblatt international · 2025Review
- Tibial nerve SEPs in diagnosing lumbar spinal stenosis: The utility of segmental evaluation using P15 and N21.Clinical neurophysiology practice · 2023Article
- Findings of Electrodiagnostic Studies in Moderate to Severe Lumbar Central Spinal Stenosis-Electrodiagnostic Studies in Lumbar Central Spinal Stenosis.Healthcare (Basel, Switzerland) · 2021Article
- Association Between Latency of Dermatomal Sensory-Evoked Potentials and Quantitative Radiologic Findings of Narrowing in Lumbar Spinal Stenosis.Annals of rehabilitation medicine · 2020Article
- Can the severity of central lumbar stenosis affect the results of nerve conduction study?Medicine · 2020Observational
- Natural Course and Diagnosis of Lumbar Spinal Stenosis: WFNS Spine Committee Recommendations.World neurosurgery: X · 2020Article
- [Classification and diagnosis of lumbar spinal stenosis].Der Orthopade · 2019Review
- [Diagnostics and conservative treatment of cervical and lumbar spinal stenosis].Der Nervenarzt · 2018Review
- Change in onset times of the abdominal muscles following functional task in lumbar spinal stenosis.Journal of exercise rehabilitation · 2014Article
- Prediction of long-term clinical outcome in patients with lumbar spinal stenosis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2012Article
- Leg weakness in a patient with lumbar stenosis and adrenal insufficiency.Journal of Korean Neurosurgical Society · 2011Article
- Clinical classification of cauda equina syndrome for proper treatment.Acta orthopaedica · 2010Article
- Clinical value of motor evoked potentials with transcranial magnetic stimulation in the assessment of lumbar spinal stenosis.International orthopaedics · 2009Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
unlabelledThe objective of this study was to investigate the relationship between electrophysiological recordings and clinical as well as radiological findings in patients suggestive to suffer from a lumbar spinal stenosis (LSS). We hypothesise that the electrophysiological recordings, especially SSEP, indicate a lumbar nerve involvement that is complementary to the neurological examination and can provide confirmatory information in less obvious clinical cases. In a prospective cohort study, 54 patients scheduled for surgery due to LSS were enrolled in an unmasked, uncontrolled trial. All patients were assessed by neurological examination, electrophysiological recordings, and magnetic resonance imaging (MRI) of the lumbar spine. The electrophysiological recordings focused on spinal lumbar nerve involvement.
resultsAbout 88% suffered from a multisegmental LSS and 91% of patients respectively complained of chronic lower back pain and/or leg pain for more than 3 months, combined with a restriction in walking distance. The neurological examination revealed only a few patients with sensory and/or motor deficits while 87% of patients showed pathological electrophysiological recordings (abnormal tibial SSEP in 78% of patients, abnormal H-reflex in 52% of patients).
conclusionsWhereas the clinical examination, even in severe LSS, showed no specific sensory-motor deficit, the electrophysiological recordings indicated that the majority of patients had a neurogenic disorder within the lumbar spine. By the pattern of bilateral pathological tibial SSEP and pathological reflexes associated with normal peripheral nerve conduction, LSS can be separated from a demyelinating polyneuropathy and mono-radiculopathy. The applied electrophysiological recordings, especially SSEP, can confirm a neurogenic claudication due to cauda equina involvement and help to differentiate neurogenic from vascular claudication or musculo-skeletal disorders of the lower limbs. Therefore, electro-physiological recordings provide additional information to the neurological examination when the clinical relevance of a radiologically-suspected LSS needs to be confirmed.
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