keyword
MENU ▼
Read by QxMD icon Read
search

lumbosacral plexus

keyword
https://www.readbyqxmd.com/read/29028758/mr-neurography-of-lumbosacral-plexus-in-failed-back-surgery-syndrome
#1
Riham Dessouky, Mohammed Khaleel, Dalia N Khalifa, Hazim I Tantawy, Avneesh Chhabra
STUDY DESIGN: Retrospective clinical case series. OBJECTIVE: To study the role of MRN of lumbosacral plexus in management of patients with FBSS. SUMMARY OF BACKGROUND DATA: Failed back surgery syndrome (FBSS) is one of the major problems in health care, affecting up to 40% of patients following spine surgery. To date, no imaging modality has been used to effectively classify nerve compression, since nerve injuries are challenging to detect on conventional lumbar spine MRI...
October 12, 2017: Spine
https://www.readbyqxmd.com/read/29023976/peripheral-nerve-involvement-in-multiple-sclerosis-demonstration-by-magnetic-resonance-neurography
#2
Johann M E Jende, Gesa H Hauck, Ricarda Diem, Markus Weiler, Sabine Heiland, Brigitte Wildemann, Mirjam Korporal-Kuhnke, Wolfgang Wick, John M Hayes, Johannes Pfaff, Mirko Pham, Martin Bendszus, Jennifer Kollmer
OBJECTIVE: To detect and quantify peripheral nerve lesions in multiple sclerosis (MS) by magnetic resonance neurography (MRN). METHODS: 36 patients diagnosed with MS based on the 2010 McDonald criteria (34 with the relapsing-remitting form, 2 with clinically isolated syndrome) with and without disease modifying treatment were compared to 35 healthy age/sex-matched volunteers. All patients underwent detailed neurological and electrophysiological examinations. 3T MRN with large anatomical coverage of both legs and the lumbosacral plexus was performed by using 2D fat-saturated, T2-weighted and dual echo turbo-spin-echo sequences as well as a 3D T2-weighted, fat-saturated SPACE sequence...
October 10, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/29018606/exceptional-soft-tissues-preservation-in-a-mummified-frog-eating-eocene-salamander
#3
Jérémy Tissier, Jean-Claude Rage, Michel Laurin
Fossils are almost always represented by hard tissues but we present here the exceptional case of a three-dimensionally preserved specimen that was 'mummified' (likely between 40 and 34 million years ago) in a terrestrial karstic environment. This fossil is the incomplete body of a salamander, Phosphotriton sigei, whose skeleton and external morphology are well preserved, as revealed by phase-contrast synchrotron X-ray microtomography. In addition, internal structures composed of soft tissues preserved in three dimensions are now identified: a lung, the spinal cord, a lumbosacral plexus, the digestive tract, muscles and urogenital organs that may be cloacal glands...
2017: PeerJ
https://www.readbyqxmd.com/read/28837658/dorsal-root-ganglia-hypertrophy-as-in-vivo-correlate-of-oxaliplatin-induced-polyneuropathy
#4
Leonidas Apostolidis, Daniel Schwarz, Annie Xia, Markus Weiler, Andreas Heckel, Tim Godel, Sabine Heiland, Heinz-Peter Schlemmer, Dirk Jäger, Martin Bendszus, Philipp Bäumer
PURPOSE: To investigate in vivo morphological and functional correlates of oxaliplatin-induced peripheral neuropathy (OXA-PNP) by magnetic resonance neurography (MRN). METHODS: Twenty patients (7 female, 13 male, 58.9±10.0 years) with mild to moderate OXA-PNP and 20 matched controls (8 female, 12 male, 55.7±15.6 years) were prospectively enrolled. All patients underwent a detailed neurophysiological examination prior to neuroimaging. A standardized imaging protocol at 3...
2017: PloS One
https://www.readbyqxmd.com/read/28830192/sciatic-neuromuscular-variants-on-mr-neurography-frequency-study-and-interobserver-performance
#5
Jason Eastlack, Lulu Tenorio, Vibhor Wadhwa, Kelly Scott, Adam Starr, Avneesh Chhabra
OBJECTIVE: To evaluate the frequency of sciatic neuromuscular variants on MR neurography and determine the interobserver variability. METHODS: A retrospective evaluation of 137 consecutive lumbosacral plexus MRN exams was performed. All exams were performed using nerve selective 3D imaging and independently reviewed by two readers for the presence of sciatic neuromuscular variants and piriformis muscle asymmetry. Inter- and intra-observer performance were evaluated...
August 22, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28768846/clinical-phenotype-and-outcome-of-hepatitis-e-virus-associated-neuralgic-amyotrophy
#6
MULTICENTER STUDY
Jeroen J J van Eijk, Harry R Dalton, Paolo Ripellino, Richard G Madden, Catherine Jones, Miriam Fritz, Claudio Gobbi, Giorgia Melli, Emanuela Pasi, Jenny Herrod, Rebecca F Lissmann, Hamad H Ashraf, Mohamed Abdelrahim, Omar A B A L Masri, Montserrat Fraga, David Benninger, Thierry Kuntzer, Vincent Aubert, Roland Sahli, Darius Moradpour, Hélène Blasco-Perrin, Shahram Attarian, Rene Gérolami, Philippe Colson, Maria T Giordani, Johannes Hartl, Sven Pischke, Nan X Lin, Brendan N Mclean, Richard P Bendall, Marcus Panning, Jean-Marie Peron, Nassim Kamar, Jacques Izopet, Bart C Jacobs, Nens van Alfen, Baziel G M van Engelen
OBJECTIVE: To determine the clinical phenotype and outcome in hepatitis E virus-associated neuralgic amyotrophy (HEV-NA). METHODS: Cases of NA were identified in 11 centers from 7 European countries, with retrospective analysis of demographics, clinical/laboratory findings, and treatment and outcome. Cases of HEV-NA were compared with NA cases without evidence of HEV infection. RESULTS: Fifty-seven cases of HEV-NA and 61 NA cases without HEV were studied...
August 29, 2017: Neurology
https://www.readbyqxmd.com/read/28756539/intraspinal-intradural-variations-of-nerve-roots
#7
Viktor Matejčík, Zora Haviarová, Andrej Šteňo, Roman Kuruc, Juraj Šteňo
PURPOSE: The aim of this work is to point out the intraspinal anatomical variations of nerve roots and their possible participation in radiculopathy. METHODS: The anatomical study was performed in 33 cadavers. There were 25 male cadavers aged 30-75 years and 8 female cadavers aged 45-77 years, with a mean age of 46.5 years to 24 h from death. All intradural rami communicantes between nerve roots were excised and examined histologically for the presence or absence of nervous tissue...
July 29, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28678646/pain-areas-and-mechanosensitivity-in-patients-with-chronic-pelvic-pain-syndrome-a-controlled-clinical-investigation
#8
Jörgen Quaghebeur, Jean-Jacques Wyndaele, Stefan De Wachter
OBJECTIVE: A thorough clinical assessment including physical examination is crucial in a diagnostic work-up, including in patients with chronic pelvic pain syndrome (CPPS). This study investigated the prevalence of pain areas and the mechanosensitivity of peripheral nerves in patients with CPPS and compared the findings with a healthy control group. MATERIALS AND METHODS: Healthy volunteers and patients diagnosed with CPPS were assessed with physical examinations and neurodynamic testing...
July 5, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28676358/anatomy-and-physiology-of-the-pelvic-floor
#9
REVIEW
Sarah M Eickmeyer
Understanding the anatomic relationship of the pelvic floor muscles with the pelvic girdle, spine, and hips aids the rehabilitation provider in diagnosis, management, and appropriate referrals. The bony anatomy of the pelvic girdle consists of 3 bones and 3 joints. The pelvic floor muscles are comprised mainly of the levator ani muscles with somatic innervation from the lumbosacral plexus. The bony and muscular pelvis is highly interconnected to the hip and gluteal musculature, which together provide support to the internal organs and core muscles...
August 2017: Physical Medicine and Rehabilitation Clinics of North America
https://www.readbyqxmd.com/read/28660835/rectal-foreign-body-insertion-as-a-rare-cause-of-persistent-lumbosacral-plexus-injury
#10
F A Meister, I Amygdalos, U P Neumann, G Lurje
Rectal foreign body insertion is a common condition in emergency surgery, which often requires surgical intervention. Here we report a clinical case of rectal foreign body insertion as a rare cause of persistent lumbosacral plexus injury. A 72-year-old man presented to the emergency department complaining of acute bilateral paraplegia with loss of sensation in both legs, as well as total urinary retention. The patient underwent abdominal computed tomography, which showed a rectal foreign body measuring 13 × 11...
July 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28658039/radiographic-analysis-of-psoas-morphology-and-its-association-with-neurovascular-structures-at-l4-5-with-reference-to-lateral-approaches
#11
Philip K Louie, Ankur S Narain, Fady Y Hijji, Alem Yacob, Kelly H Yom, Frank M Phillips, Kern Singh
STUDY DESIGN: Retrospective imaging review. OBJECTIVE: Utilize magnetic resonance imaging (MRI) to expand the anatomical description of psoas morphology and its association with neurovascular structures at L4-5. SUMMARY OF BACKGROUND DATA: Anatomical psoas muscle variants may present a greater risk of neurovascular injury at the L4-5 level during lateral transpsoas approaches. METHODS: Axial L4-5 sections of consecutive patients who obtained lumbar MRIs were analyzed...
June 27, 2017: Spine
https://www.readbyqxmd.com/read/28620719/large-coverage-mr-neurography-in-cidp-diagnostic-accuracy-and-electrophysiological-correlation
#12
Moritz Kronlage, Philipp Bäumer, Kalliopi Pitarokoili, Daniel Schwarz, Véronique Schwehr, Tim Godel, Sabine Heiland, Ralf Gold, Martin Bendszus, Min-Suk Yoon
The objective of this study was to evaluate large coverage magnetic resonance neurography (MRN) in chronic inflammatory demyelinating polyneuropathy (CIDP). In this prospective study, 18 patients with CIDP and 18 healthy controls were examined by a standardized MRN protocol at 3 T. Lumbosacral plexus was imaged by a T2-weighted 3D sequence and peripheral nerves of the upper and lower extremity by axial T2-weighted turbo spin-echo sequences. Lesions were characterized by nerve cross-sectional area (CSA) and T2-weighted signal (nT2)...
July 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28579881/impacts-of-triamcinolone-acetonide-on-femoral-head-chondrocytic-structures-in-lumbosacral-plexus-block
#13
Dashou Wang, Qian Chen, Fengjun Cai, Qi Pan, Xuesong Li, Qianming Wu, Yong Gan, Fei Meng, Ping Luo
Objective: To investigate impacts of triamcinolone acetonide (TRI) on femoral head chondrocytic (FHC) structures when used for lumbosacral plexus block (LPB). Methods: A total of 32 6-month-old New Zealand white rabbits were selected (averagely weighing 2.75-3.25 kg) and added TRI into nerve block solution for LPB. The rabbit were randomly divided into four groups: group A1: 2.5 ml × 2 times, group A2 2.5 ml × 4 times, group B1 5 ml × 2 times, and group B2 5 ml × 4 times; the time interval among the injection was 5 days, and the structural changes of FHC were the observed using 50/100/200 light microscope; the modified Mankin pathological scoring was also performed for the evaluation...
May 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28560607/femoral-nerve-and-lumbar-plexus-injury-after-minimally-invasive-lateral-retroperitoneal-transpsoas-approach-electrodiagnostic-prognostic-indicators-and-a-roadmap-to-recovery
#14
Naomi A Abel, Jacob Januszewski, Andrew C Vivas, Juan S Uribe
Injury to the lumbosacral (LS) plexus is a well-described complication after lateral retroperitoneal transpsoas approaches to the spine. The prognosis for functional recovery after lumbosacral plexopathy or femoral/obturator neuropathy is unclear. We designed a retrospective case-control study with patients undergoing one-level lateral retroperitoneal transpsoas lumbar interbody fusion (LLIF) between January 2011 and June 2016 to correlate electrodiagnostic assessments (EDX) to physiologic concepts of nerve injury and reinnervation, and attempt to build a timeline for patient evaluation and recovery...
May 30, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28528897/lateral-lumbar-interbody-fusion-at-the-lumbosacral-junction
#15
Timothy L T Siu, Kainu Lin
Due to the obstruction of the iliac crest and the retroperitoneal vessels, lateral lumbar interbody fusion (LLIF) is generally considered contraindicated at the lumbosacral junction (LSJ). In particular the 'rise' of the psoas from the vertebral column in the lower lumbar segments has been associated with significant overlap of the lumbar plexus with the vertebral body and exclusion of a safe transpsoas entry. However in selected individuals anatomical variations may help circumvent the difficulties and the anatomical corridor posterior to the lumbar plexus may provide an alternative to the conventional anterior approach...
May 18, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28520565/use-of-a-tilting-orthopedic-fracture-table-to-facilitate-proper-patient-positioning-during-intrathecal-neurolysis-with-hyperbaric-phenol-a-case-report
#16
Nathaniel H Loo, Gerald Matchett
We describe the case of a 41-year-old woman with metastatic cervical cancer and a large mass eroding into the pelvis and left lumbosacral plexus. The patient had intractable left lower extremity pain refractory to standard therapies, and she elected to undergo intrathecal neurolysis. A diagnostic intrathecal block was performed at the T11-12 interspace followed by intrathecal neurolysis with 6% phenol in glycerin on a subsequent date. During both procedures, we used a tilting radiolucent orthopedic fracture table to maintain strict left lateral-supine positioning...
September 15, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28506346/-role-of-short-latency-somatosensory-evoked-potential-in-the-diagnosis-of-chronic-inflammatory-demyelinating-polyneuropathy
#17
Rui-Di Sun, Bing Fu, Jun Jiang
OBJECTIVE: To investigate the role of short-latency somatosensory evoked potential (SSEP) in the diagnosis of chronic inflammatory demyelinating polyneuropathy (CIDP). METHODS: A total of 48 children with a confirmed or suspected CIDP and 40 healthy children were enrolled. Nerve electrophysiological examination and/or SSEP examination was performed (the children in the healthy control group only underwent SSEP examination). Four-lead electromyography was used for nerve electrophysiological examination, including at least 4 motor nerves and 2 sensory nerves...
May 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28473078/acr-appropriateness-criteria-%C3%A2-plexopathy
#18
Julie Bykowski, Joseph M Aulino, Kevin L Berger, R Carter Cassidy, Asim F Choudhri, A Tuba Kendi, Claudia F E Kirsch, Michael D Luttrull, Aseem Sharma, Vilaas S Shetty, Khoi Than, Christopher J Winfree, Rebecca S Cornelius
MRI without and with contrast is the most accurate imaging method to determine whether a process is intrinsic or extrinsic to a nerve of the brachial or lumbosacral plexus. However, there are no Current Procedural Terminology codes to correspond to imaging studies of the brachial or lumbar plexus discretely. This assessment uses "MRI of the brachial plexus" or "MRI of the lumbosacral plexus" as independent entities given that imaging acquisition for the respective plexus differs in sequences and planes compared with those of a routine neck, chest, spine, or pelvic MRI, yet acknowledges the potential variability of ordering practices across institutions...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28429700/acute-lower-extremity-paralysis-after-lower-extremity-endovascular-intervention
#19
Semi Öztürk, Muhsin Kalyoncuoğlu, Gündüz Durmuş, Adem Topçu, Mehmet Can
A 61-year-old man underwent successful percutaneous revascularization of both lower limbs with multiple stent implantations. Paralysis of right lower limb was noticed after completion of procedure when transferring the patient from angiography table. Since hematoma compressing lumbosacral neural plexus could be a fatal complication, computed tomography (CT) image was taken. CT showed bulge of distended bladder compressing stent struts. Following placement of Foley catheter, condition improved and he was subsequently discharged uneventfully...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28396863/real-time-ultrasound-mri-fusion-for-suprasacral-parallel-shift-approach-to-lumbosacral-plexus-blockade-and-analysis-of-injectate-spread-an-exploratory-randomized-controlled-trial
#20
RANDOMIZED CONTROLLED TRIAL
Jennie Maria Christin Strid, Erik Morre Pedersen, Sinan Naseer Hussain Al-Karradi, Mathias Alrø Fichtner Bendtsen, Siska Bjørn, Mette Dam, Morten Daugaard, Martin Sejr Hansen, Katrine Danker Linnet, Jens Børglum, Kjeld Søballe, Thomas Fichtner Bendtsen
Fused real-time ultrasound and magnetic resonance imaging (MRI) may be used to improve the accuracy of advanced image guided procedures. However, its use in regional anesthesia is practically nonexistent. In this randomized controlled crossover trial, we aim to explore effectiveness, procedure-related outcomes, injectate spread analyzed by MRI, and safety of ultrasound/MRI fusion versus ultrasound guided Suprasacral Parallel Shift (SSPS) technique for lumbosacral plexus blockade. Twenty-six healthy subjects aged 21-36 years received two SSPS blocks (20 mL 2% lidocaine-epinephrine [1 : 200,000] added 1 mL diluted contrast) guided by ultrasound/MRI fusion versus ultrasound...
2017: BioMed Research International
keyword
keyword
46052
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"