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Low back pain electrodiagnostic test

Farhad Adelmanesh, Ali Jalali, Armin Shirvani, Kambiz Pakmanesh, Marina Pourafkari, Gholam R Raissi, Yoram Shir
OBJECTIVES: Low back pain (LBP) is highly prevalent and costly to the society. Previous studies have shown an association between radicular LBP and trigger points (TrPs) in the superior-lateral quadrant of the gluteal area (GTrP). The objective of current study was to evaluate the diagnostic value of GTrP to predict nerve root involvement among patients with LBP. MATERIALS AND METHODS: In a prospective, diagnostic accuracy study 325 consecutive patients with LBP were recruited...
August 2016: Clinical Journal of Pain
Nathan J Savage, Julie M Fritz, John C Kircher, Anne Thackeray
PURPOSE: To investigate the prognostic value of electrodiagnostic testing in patients with sciatica receiving physical therapy. METHODS: Electrodiagnostic testing was performed on 38 patients with sciatica participating in a randomized trial comparing different physical therapy interventions. Patients were grouped and analyzed according to the presence or absence of radiculopathy based on electrodiagnostic testing. Longitudinal data analysis was conducted using multilevel growth modeling with ten waves of data collected from baseline through the treatment and post-treatment periods up to 6 months...
March 2015: European Spine Journal
E G Hasankhani, F Omidi-Kashani
Introduction. Radicular low back pain is one of the most common medical problems. The aim of this study was to evaluate the diagnostic accuracy of MRI and electrodiagnosis in lower extremity radicular pain in relation to history and clinical findings. Methods. In this cross-sectional study, we studied 165 sciatalgic subjects. A comprehensive history and physical examinations were taken from the subjects and recorded, and then MRI scanning and electrodiagnostic (nerve conduction velocity and electromyography) tests were performed...
2013: ISRN Neuroscience
Esra E Inal, Filiz Eser, Lale A Aktekin, Ergun Oksüz, Hatice Bodur
Cervical and lumbar roots may be irritated or compressed due to the pathological conditions such as disc herniations, degenerative foraminal stenosis, trauma and tumors. Electrophysiologic tests are frequently used in conjunction with imaging modalities for evaluation of low back and neck pain radiating to extremities, primarily for the purpose of establishing the presence or absence of a radiculopathy. In this study, we aimed to evalulate the relationship between clinic and electroneuromyographic (ENMG) findings in patients with suspected radiculopathies...
2013: Journal of Back and Musculoskeletal Rehabilitation
John A Yarjanian, April Fetzer, Karen S Yamakawa, Henry C Tong, Matthew Smuck, Andrew Haig
OBJECTIVE: To determine the relationship among spinal stenosis, back pain, paraspinal muscle denervation, and paraspinal muscle atrophy. DESIGN: A prospective masked, double-controlled study. SETTING: A university hospital and outpatient spine clinic. PARTICIPANTS: Ten asymptomatic subjects, 10 subjects with mechanical low back pain, and 15 subjects with symptomatic spinal stenosis; age range, 55-80 years old. INTERVENTIONS: Magnetic resonance imaging measurements of minimum spinal canal diameter, paraspinal muscle cross-sectional area at the level of the L5-S1 disk, and quantified paraspinal electrodiagnostic testing (MiniPM) were performed by examiners blinded to each other's results and to the participants' clinical information...
January 2013: PM & R: the Journal of Injury, Function, and Rehabilitation
Henry C Tong
OBJECTIVE: To determine the incremental ability of different needle electromyography diagnostic criteria to detect lumbar radiculopathy. DESIGN: Blinded cross-sectional study. SETTING: University hospital. PARTICIPANTS: Subjects aged 55 to 80 years with radiating low back pain (n=48; mean age ± SD, 67.9±7.3y) and who were asymptomatic (n=30; mean age ± SD, 65.4±8y). INTERVENTIONS: Electrodiagnostic evaluation by a blinded electromyographer...
June 2012: Archives of Physical Medicine and Rehabilitation
Christy C Tomkins-Lane, Sara Christensen Holz, Karen S Yamakawa, Vaishali V Phalke, Doug J Quint, Jennifer Miner, Andrew J Haig
OBJECTIVE: To examine predictors of community walking performance and walking capacity in people with lumbar spinal stenosis (LSS), compared with people with low back pain and asymptomatic control subjects. DESIGN: Retrospective analysis. SETTING: University spine program. PARTICIPANTS: Participants (N=126; 50 LSS, 44 low back pain, 32 asymptomatic control subjects) aged 55 to 80 years were studied. INTERVENTIONS: Not applicable...
April 2012: Archives of Physical Medicine and Rehabilitation
Jeremy I Simon, Gerald J Herbison, Galit Levy
The following is a case report which reviews the essential aspects of Lambert-Eaton myasthenic syndrome (LEMS) in a patient with long standing back pain and gait dysfunction. The patient was referred to our electrodiagnostics laboratory for a 9-month history of low back pain and difficulty walking following a charity breast cancer walk. A workup including magnetic resonance imaging of the brain, entire spine, and EMG/NCS at another institution were reportedly normal. A detailed history revealed symptoms of proximal weakness and autonomic dysfunction...
January 4, 2011: Current Reviews in Musculoskeletal Medicine
Tannaz Ahadi, Gholam Reza Raissi, Mansoureh Togha, Parisa Nejati
Saphenous nerve, a pure sensory nerve, may compromise as a result or complication of a surgical procedure or secondary to trauma or insidiously. We present a male patient with low back pain concomitant with pain in medial portion of left thigh in addition to pain and numbness in medial part of leg and inferior part of patella after a strenuous activity. Preliminary diagnosis suggested that the patient had radiculopathy but electrodiagnostic tests revealed the absence of left saphenous response both in medial leg and infrapatellar region, while normal findings were recorded from right side...
2010: Journal of Brachial Plexus and Peripheral Nerve Injury
Deborah Ellison, Michelle L Williams, Grace Moodt, Francisca Cisneros Farrar
This article overviews electrodiagnostic tests that provide evidence-based data in the treatment and management of abnormalities in nerves and muscles. There is a focused review on cardiac tests, nerve-conduction tests, low-back pain tests, seizure and epilepsy tests, and obstructive sleep apnea electrodiagnostic tests. Case reports demonstrate how these electrophysiologic tests can provide specific data about the location and underlying causative factors of abnormalities in the nerves and muscles that routine diagnostic tests cannot differentiate...
March 2010: Critical Care Nursing Clinics of North America
Andrew J Haig, Karen S J Yamakawa, Christopher Parres, Anthony Chiodo, Henry Tong
OBJECTIVES: To describe neurophysiologic changes over time in persons with and without spinal complaints and to assess whether paraspinal denervation predicts change in stenosis on magnetic resonance imaging (MRI) and clinical course. DESIGN: Prospective, controlled, masked trial. SETTING: University spine program. PARTICIPANTS: Persons aged 55 to 80 years, screened for polyneuropathy and determined on clinical examination to have spinal stenosis, mechanical low back pain, or no spinal symptoms...
February 2009: PM & R: the Journal of Injury, Function, and Rehabilitation
M A Fisher, R Bajwa, K N Somashekar
OBJECTIVE: This study compares Routine nerve conductions studies (NCS)/needle electromyography (nEMG) with a multiparameter recording method (NC-stat; NeuroMetrix Inc., Waltham, MA, USA) in patients with lumbosacral radiculopathies (LSR). METHODS: Charts from 34 consecutive patients with a clinical history and/or examination consistent with an LSR were retrospectively reviewed. All underwent both Routine NCS/nEMG studies and NC-stat EDX. NC-stat testing included peroneal and posterior tibial nerve distal motor latencies and amplitudes and F-wave analysis...
August 2008: Acta Neurologica Scandinavica
K S J Yamakawa, Andrew J Haig, M E Geisser, H C Tong, A Chiodo, J A Miner
OBJECTIVE: To examine the impact of clinician factors on technical data within an electrodiagnostic consultation for low-back pain and spinal stenosis. DESIGN: Examiner differences on single-segment paraspinal mapping scores and other findings were examined in a prospective, masked, double-controlled trial involving 150 people aged 55-80 yrs who were selected for no symptoms, back pain, or possible spinal stenosis. RESULTS: Unmasked clinicians were more variable than masked physicians (F2,219 = 4...
May 2007: American Journal of Physical Medicine & Rehabilitation
Anthony Chiodo, Andrew J Haig, Karen S J Yamakawa, Douglas Quint, Henry Tong, Vaishali R Choksi
OBJECTIVE: False positive imaging tests--disk herniation or spinal stenosis--occur in a significant number of asymptomatic persons, increasing with age. A similar or greater prevalence probably occurs in people who present to physicians with mechanical back pain, potentially causing therapeutic misadventure. Electrodiagnostic testing may be normal in persons with asymptomatic pathology, but has not been directly tested. METHODS: As part of a larger study of older persons with lumbar stenosis, 35 asymptomatic adults were evaluated by an extensive questionnaire, codified history and physical examination, masked electrodiagnostic testing, and masked lumbar magnetic resonance imaging, with repeated procedure at 18 months...
April 2007: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Andrew J Haig, Michael E Geisser, Henry C Tong, Karen S J Yamakawa, Douglas J Quint, Julian T Hoff, Anthony Chiodo, Jennifer A Miner, Vaishali V Phalke
BACKGROUND: Magnetic resonance imaging is commonly used to diagnose lumbar spinal stenosis. Some persons without symptoms have a small lumbar spinal canal. Electrodiagnosis has been used to diagnose spinal stenosis for over sixty years, but we are aware of no masked, controlled trials of the use of electrodiagnosis for that purpose. This study was performed to evaluate the relationships of magnetic resonance imaging measures and electrodiagnostic data with the clinical syndrome of spinal stenosis...
February 2007: Journal of Bone and Joint Surgery. American Volume
Andrew J Haig, Henry C Tong, Karen S Yamakawa, Douglas J Quint, Julian T Hoff, Anthony Chiodo, Jennifer A Miner, Vaishali R Choksi, Michael E Geisser, Christopher M Parres
OBJECTIVE: To assess the relations between clinically recognized lumbar spinal stenosis and the conclusions of masked radiologists and electrodiagnosticians. DESIGN: Prospective, masked, double-controlled trial. SETTING: University spine center. PARTICIPANTS: One hundred fifty persons age 55 to 80 years with or without back pain and with or without magnetic resonance imaging (MRI)-demonstrated stenosis, screened for neuropathy risk, previous surgery, or cancer...
July 2006: Archives of Physical Medicine and Rehabilitation
Andrew J Haig, Karen Yamakawa, Richard Kendall, Jennifer Miner, Christopher M Parres, Marcus Harris
OBJECTIVES: Performed by thousands of specialists and researched for >60 yrs, electrodiagnostic testing rates poorly in evidence-based guidelines in part because there are no valid masked research studies. This study assesses whether the electrodiagnostic examination can be adequately masked. DESIGN: Prospective, controlled, masked trial. A total of 150 persons aged 55-80 yrs, thought clinically to be asymptomatic (n = 32), with low back pain (n = 46), or with spinal stenosis (n = 63), underwent needle electromyography and nerve conduction studies by specialists in physical medicine and rehabilitation who were not permitted to ask any clinical information or to perform a formal examination...
June 2006: American Journal of Physical Medicine & Rehabilitation
H J Willenbrink, K Struck
This review of radiological and other procedures used in the diagnosis of (chronic) low-back pain is not intended to provide a complete evaluation of the methods employed, because the validity, specificity and sensitivity of the various diagnostic measures are the subject of so much controversy that a comprehensive discussion would be beyond the scope of the present overview. The choice of method depends not only on the clinical symptoms but also on the localisation of the pain, the aetiology of which may also be related to the age of the patient...
July 10, 1998: Der Schmerz
Martin D Wells, Ann P Meyer, Mark Emley, Xuan Kong, Ricardo Sanchez, Shai N Gozani
STUDY DESIGN: Multivariate logistic regression techniques were used to develop a composite nerve conduction measurement that detects lumbosacral (L5, S1, or both) nerve root compression. OBJECTIVES: To evaluate the diagnostic efficacy of a composite nerve conduction measurement for detection of lumbosacral nerve root compression. SUMMARY OF BACKGROUND DATA: Nerve root involvement is characterized by clinical abnormalities and confirmed by radiologic and electrodiagnostic studies...
December 15, 2002: Spine
Eric J Letonoff, Troy R K Williams, Kanwaldeep S Sidhu
STUDY DESIGN: Three cases of hysterical paralysis are reported and the literature is reviewed. OBJECTIVE: To report and discuss three cases of psychogenic paraplegia in order to increase the awareness and assist in the diagnosis and treatment of this uncommon disorder. SUMMARY OF BACKGROUND DATA: Hysterical paralysis, a form of conversion disorder, is an uncommon psychogenic, nonorganic loss of motor function precipitated by a traumatic event...
October 15, 2002: Spine
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