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Lumbar foraminal stenosis

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https://www.readbyqxmd.com/read/28632554/the-correlation-between-cage-subsidence-bone-mineral-density-and-clinical-results-in-posterior-lumbar-interbody-fusion
#1
Kyu Won Oh, Jae Hyup Lee, Ji-Ho Lee, Do-Yoon Lee, Hee Jong Shim
STUDY DESIGN: A retrospective review of prospectively collected radiographic and clinical data. OBJECTIVE: This study aims to investigate the relationship between cage subsidence and bone mineral density (BMD), and to reveal the clinical implications of cage subsidence. SUMMARY OF BACKGROUND DATA: Posterior lumbar interbody fusion (PLIF) has become one of the standard treatment modality for lumbar degenerative disease. However, cage subsidence might result in recurrent foraminal stenosis and deteriorate the clinical results...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28622909/biomechanical-evaluation-of-a-novel-pedicle-screw-based-interspinous-spacer-a-finite-element-analysis
#2
Hsin-Chang Chen, Jia-Lin Wu, Shou-Chieh Huang, Zheng-Cheng Zhong, Shiu-Ling Chiu, Yu-Shu Lai, Cheng-Kung Cheng
Interspinous spacers have been designed to provide a minimally invasive surgical technique for patients with lumbar spinal stenosis or foraminal stenosis. A novel pedicle screw-based interspinous spacer has been developed in this study, and the aim of this finite element experiment was to investigate the biomechanical differences between the pedicle screw-based interspinous spacer (M-rod system) and the typical interspinous spacer (Coflex-F™). A validated finite element model of an intact lumbar spine was used to analyze the insertions of the Coflex-F™, titanium alloy M-rod (M-Ti), and polyetheretherketone M-rod (M-PEEK), independently...
June 13, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28527756/radiological-lumbar-stenosis-severity-predicts-worsening-sagittal-malalignment-on-full-body-standing-stereoradiographs
#3
Aaron J Buckland, Subaraman Ramchandran, Louis Day, Shay Bess, Themistocles Protopsaltis, Peter G Passias, Bassel G Diebo, Renaud Lafage, Virginie Lafage, Akhila Sure, Thomas J Errico
BACKGROUND CONTEXT: Patients with degenerative lumbar stenosis (DLS) adopt a forward flexed posture in an attempt to decompress neural elements. The relationship between sagittal alignment and severity of lumbar stenosis has not previously been studied. PURPOSE: We hypothesized that patients with increasing radiological severity of lumbar stenosis will exhibit worsening sagittal alignment. STUDY DESIGN: This is a cross-sectional study. PATIENT SAMPLE: Our sample consists of patients who have DLS...
May 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28461958/management-of-degenerative-lumbar-spinal-stenosis-an-evidence-based-review
#4
REVIEW
Augusto Covaro, Gemma Vilà-Canet, Ana García de Frutos, Maite T Ubierna, Francesco Ciccolo, Enric Caceres
Lumbar spinal stenosis has become one of the most disabling pathologies in the elderly population.Some additional conditions such as foraminal stenosis or degenerative spondylosis with a history of back pain and leg pain must be considered before treatment.A completely appropriate protocol and unified management of spinal stenosis have not yet been well defined.The objective of this literature review is to provide evidence-based recommendations reflected in the highest-quality clinical literature available to address key clinical questions surrounding the management of degenerative lumbar spinal stenosis...
July 2016: EFORT open reviews
https://www.readbyqxmd.com/read/28434048/clinical-and-radiological-outcomes-of-endoscopic-partial-facetectomy-for-degenerative-lumbar-foraminal-stenosis
#5
Myung Soo Youn, Jong Ki Shin, Tae Sik Goh, Jung Sub Lee
BACKGROUND: Several different techniques exist to treat degenerative lumbar foraminal stenosis. Failure to adequately decompress the lumbar foramen may lead to failed back surgery syndrome. However, wide decompression often causes spinal instabilities or may require an additional fusion surgery. The aim of this study was to report the outcomes of endoscopic partial facetectomy (EPF) performed on patients with degenerative lumbar foraminal stenosis. METHODS: Between 2012 and 2014, 25 consecutive patients (12 women and 13 men) who underwent EPF were included in the study...
June 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28407702/assessment-of-clinical-symptoms-in-lumbar-foraminal-stenosis-using-the-japanese-orthopaedic-association-back-pain-evaluation-questionnaire
#6
Yawara Eguchi, Munetaka Suzuki, Hajime Yamanaka, Hiroshi Tamai, Tatsuya Kobayashi, Sumihisa Orita, Kazuyo Yamauchi, Miyako Suzuki, Kazuhide Inage, Hirohito Kanamoto, Koki Abe, Yasuchika Aoki, Masao Koda, Takeo Furuya, Kazuhisa Takahashi, Seiji Ohtori
OBJECTIVE: It is important to develop an easy means of diagnosing lumbar foraminal stenosis (LFS) in a general practice setting. We investigated the use of the Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ) to diagnose LFS in symptomatic patients. METHODS: Subjects included 13 cases (mean age, 72 years) with LFS, and 30 cases (mean age, 73 years) with lumbar spinal canal stenosis (LSCS) involving one intervertebral disc. The visual analogue scale score for low back pain and leg pain, the JOABPEQ were evaluated...
March 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/28373604/a-new-concept-of-transforaminal-ventral-facetectomy-including-simultaneous-decompression-of-foraminal-and-lateral-recess-stenosis-technical-considerations-in-a-fresh-cadaver-model-and-a-literature-review
#7
Koichi Sairyo, Kosaku Higashino, Kazuta Yamashita, Fumio Hayashi, Keizo Wada, Toshinori Sakai, Yoichiro Takata, Fumitake Tezuka, Masatoshi Morimoto, Tomoya Terai, Takashi Chikawa, Hiroshi Yonezu, Akihiro Nagamachi, Yoshihiro Fukui
Percutaneous endoscopic surgery for the lumbar spine, which was established in the last decade, requires only an 8-mm skin incision and causes minimal damage to the paravertebral muscles; thus, it is considered to be a minimally invasive technique for spinal surgery. It has been used to perform percutaneous endoscopic discectomy via two main approaches: the TF approach is a posterolateral one through the intervertebral foramen and can be done under local anesthesia; the IL approach is a more traditional one through the interlaminar space and is difficult to perform under local anesthesia...
2017: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/28371922/effectiveness-of-percutaneous-lumbar-extraforaminotomy-in-patients-with-lumbar-foraminal-spinal-stenosis-a-prospective-single-armed-observational-pilot-study
#8
Sang Chul Lee, Won-Joong Kim, Chang-Soon Lee, Jee Youn Moon
Objective. : In lumbar foraminal spinal stenosis (LFSS), numerous ligaments may play an important role in causing radiculopathy by narrowing the exit of the nerve root. In order to achieve effective decompression of lumbar foraminal ligaments, a specially designed instrument for percutaneous lumbar extraforaminotomy (PLEF) was invented. The purpose of this study was to evaluate the effectiveness of PLEF in patients with intractable radiculopathy from LFSS. Design. : A prospective, single-armed, observational pilot study...
March 22, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28366688/a-novel-diagnostic-parameter-foraminal-stenotic-ratio-using-three-dimensional-magnetic-resonance-imaging-as-a-discriminator-for-surgery-in-symptomatic-lumbar-foraminal-stenosis
#9
Kentaro Yamada, Yuichiro Abe, Shigenobu Satoh, Yasushi Yanagibashi, Takahiko Hyakumachi, Takeshi Masuda
BACKGROUND CONTEXT: No previous studies have reported the radiological features of patients requiring surgery in symptomatic lumbar foraminal stenosis (LFS). PURPOSE: This study aims to investigate the diagnostic accuracy of a novel technique, foraminal stenotic ratio (FSR), using three-dimensional magnetic resonance imaging for LFS at L5-S by comparing patients requiring surgery, patients with successful conservative treatment, and asymptomatic patients. STUDY DESIGN: This is a retrospective radiological comparative study...
March 30, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28323238/preoperative-retrolisthesis-as-a-predictive-risk-factor-of-reoperation-due-to-delayed-onset-symptomatic-foraminal-stenosis-after-central-decompression-for-lumbar-canal-stenosis-without-fusion
#10
Daisuke Ikegami, Noboru Hosono, Yoshihiro Mukai, Kosuke Tateishi, Takeshi Fuji
BACKGROUND CONTEXT: For patients diagnosed with lumbar central canal stenosis with asymptomatic foraminal stenosis (FS), surgeons occasionally only decompress central stenosis and preserve asymptomatic FS. These surgeries have the potential risk of converting preoperative asymptomatic FS into symptomatic FS postoperatively by accelerating spinal degeneration, which requires reoperation. However, little is known about delayed-onset symptomatic FS postoperatively. PURPOSE: This study aimed to evaluate the rate of reoperation for delayed-onset symptomatic FS after lumbar central canal decompression in patients with preoperative asymptomatic FS, and determine the predictive risk factors of those reoperations...
March 18, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28296365/-clinical-and-radiological-results-of-non-fusion-by-static-interspinous-spacer
#11
Juan Enrique Guzmán-Carranza, Amado González-Moga, Leonardo Álvarez-Vázquez, Gabriel Huerta-Hernández, Abraham Isáis-Gómez, Víctor Galicia-Luna, Víctor Hugo Anaya-Contreras
BACKGROUND: The aim of this paper is to demonstrate the clinical and radiological results of non-fusion in patients with degenerative disc disease and lumbar by placing static interspinous spacer. METHODS: A retrospective study was made in the period between January 2010 and January 2013, 130 patients were treated by placing static interspinous spacer. Patients were divided into: Group 1 (treated for diagnosis of degenerative lumbar spinal stenosis), and group 2 (those diagnosed with lumbar disc herniation)...
March 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28248893/risk-factors-for-poor-patient-reported-quality-of-life-outcomes-after-posterior-lumbar-interbody-fusion-an-analysis-of-two-year-follow-up
#12
Takahiro Makino, Takashi Kaito, Hiroyasu Fujiwara, Hirotsugu Honda, Yusuke Sakai, Shota Takenaka, Hideki Yoshikawa, Kazuo Yonenobu
STUDY DESIGN: A retrospective review of prospectively collected data. OBJECTIVE: This study aimed to identify risk factors for poor patient-reported quality of life (QOL) outcomes, based on five categories (pain-related disorders, lumbar spine dysfunction, gait disturbance, social life dysfunction, and psychological disorders) of the Japanese Orthopaedic Association Back Pain Evaluation Questionnaire (JOABPEQ), after posterior lumbar interbody fusion (PLIF) at the two-year follow-up...
February 28, 2017: Spine
https://www.readbyqxmd.com/read/28207622/curve-characteristics-and-foraminal-dimensions-in-patients-with-adult-scoliosis-and-radiculopathy
#13
Andrew J Pugely, Zachary Ries, Gnanapradeep Gnanapragasam, Yubo Gao, Rachel Nash, Sergio A Mendoza-Lattes
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To demonstrate a correlation between radiculopathy symptoms, foraminal morphology, and curve types. SUMMARY OF BACKGROUND DATA: Patients with degenerative scoliosis frequently present with foraminal stenosis and radiculopathy, the origin of which is not well understood. METHODS: A total of 48 patients (384 foraminas) were included: 14 with low back pain (B); 16 with femoral nerve pain (F); and 18 with sciatic nerve pain (S)...
March 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28180981/does-pre-operative-magnetic-resonance-imaging-of-the-lumbar-multifidus-muscle-predict-clinical-outcomes-following-lumbar-spinal-decompression-for-symptomatic-spinal-stenosis
#14
Mario G T Zotti, F Vilas Boas, T Clifton, M Piche, W W Yoon, B J C Freeman
PURPOSE: To investigate whether pre-operative magnetic resonance imaging (MRI) of the lumbar multifidus muscle (LMM) would predict clinical outcomes following lumbar spinal decompression for symptomatic spinal stenosis. METHODS: A prospective cohort of patients with symptomatic neurogenic claudication, documented spinal stenosis on pre-operative MRI underwent spinal decompression. All subjects completed standardised outcome measures (Core Outcome Measures Index (COMI), Oswestry Disability Index (ODI v2...
February 8, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28163566/optimal-cut-off-value-of-the-superior-articular-process-area-as-a-morphological-parameter-to-predict-lumbar-foraminal-stenosis
#15
Tae-Ha Lim, Soo Il Choi, Hyung Rae Cho, Keum Nae Kang, Chang Joon Rhyu, Eun Young Chae, Young Su Lim, Yongsoo Lee, Young Uk Kim
Background. We devised a new morphological parameter called the superior articular process area (SAPA) to evaluate the connection between lumbar foraminal stenosis (LFS) and the superior articular process. Objective. We hypothesized that the SAPA is an important morphologic parameter in the diagnosis of LFS. Methods. All patients over 60 years of age were included. Data regarding the SAPA were collected from 137 patients with LFS. A total of 167 control subjects underwent lumbar magnetic resonance imaging (MRI) as part of a routine medical examination...
2017: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/28161236/minimally-invasive-decompression-surgery-for-lumbar-spinal-stenosis-with-degenerative-scoliosis-predictive-factors-of-radiographic-and-clinical-outcomes
#16
Akihito Minamide, Munehito Yoshida, Hiroki Iwahashi, Andrew K Simpson, Hiroshi Yamada, Hiroshi Hashizume, Yukihiro Nakagawa, Hiroshi Iwasaki, Shunji Tsutsui, Ryohei Kagotani, Mayumi Sonekatsu, Takahide Sasaki, Kazunori Shinto, Tsuyoshi Deguchi
There is ongoing controversy regarding the most appropriate surgical treatment for lumbar spinal stenosis (LSS) with concurrent degenerative lumbar scoliosis (DLS): decompression alone, decompression with limited spinal fusion, or long spinal fusion for deformity correction. The coexistence of degenerative stenosis and deformity is a common scenario; Nonetheless, selecting the appropriate surgical intervention requires thorough understanding of the patients clinical symptomatology as well as radiographic parameters...
February 1, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28127375/predictors-of-reoperation-after-microdecompression-in-lumbar-spinal-stenosis
#17
Hee-Jong Hwang, Hyung-Ki Park, Gwang-Soo Lee, June-Young Heo, Jae-Chil Chang
OBJECTIVE: The risk factors of reoperation after microdecompression (MD) for lumbar spinal stenosis (LSS) are unclear. In this study, we presented the outcomes of MD for degenerative LSS and investigated the risk factors associated with reoperation. METHODS: A retrospective review was conducted using the clinical records and radiographs of patients with LSS who underwent MD. For clinical evaluation, we used the Japanese Orthopedic Association (JOA) scoring system for low back pain, body mass index, and Charlson comorbidity index...
December 2016: Korean Journal of Spine
https://www.readbyqxmd.com/read/28116511/evaluation-of-changes-in-lumbar-neuroforaminal-dimensions-in-symptomatic-young-adults-using-positional-mri
#18
Zhiwei Ren, An Liu, Kaixiang Yang, Dalin Wang, Zorica Buser, Jeffrey C Wang
PURPOSE: To investigate the changes of lumbar neural foramina size during dynamic motion using positional MRI. METHODS: Two hundred and fifty neural foramina from 50 patients were analyzed. Lumbar foraminal height, width, and area parameters from L1 to S1 were evaluated for changes in extension, neutral, and flexion positions on T2 parasagittal positional MRI images, and were correlated to lumbar angular motion. One-way analysis of variance (ANOVA) and post hoc analysis were used to examine the differences between levels and positions...
January 23, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28096733/diagnosis-of-nerve-root-compromise-of-the-lumbar-spine-evaluation-of-the-performance-of-three-dimensional-isotropic-t2-weighted-turbo-spin-echo-space-sequence-at-3t
#19
Jinkyeong Sung, Won-Hee Jee, Joon-Yong Jung, Jinhee Jang, Jin-Sung Kim, Young-Hoon Kim, Kee-Yong Ha
OBJECTIVE: To explore the performance of three-dimensional (3D) isotropic T2-weighted turbo spin-echo (TSE) sampling perfection with application optimized contrasts using different flip angle evolution (SPACE) sequence on a 3T system, for the evaluation of nerve root compromise by disc herniation or stenosis from central to extraforaminal location of the lumbar spine, when used alone or in combination with conventional two-dimensional (2D) TSE sequence. MATERIALS AND METHODS: Thirty-seven patients who had undergone 3T spine MRI including 2D and 3D sequences, and had subsequent spine surgery for nerve root compromise at a total of 39 nerve levels, were analyzed...
January 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28026727/radiological-changes-after-interspinous-dynamic-stabilisation-for-lateral-stenosis-of-lumbar-spinal-canal-a-parallel-group-randomised-trial
#20
RANDOMIZED CONTROLLED TRIAL
J Mohar, M Cimerman
PURPOSE OF THE STUDY Interspinous dynamic stabilisation devices (IDSDs) are used for stabilisation and indirect decompression of the spinal motion segment in minimally invasive treatment of degenerative conditions of lumbar spine. Good methodological quality studies on biomechanical effects of IDSDs are lacking in scientific literature. The purpose of this study was to evaluate the biomechanical effect of dynamic IDSD implantation on a spinal motion segment. MATERIAL AND METHODS We conducted a parallel group randomised trial (RT) on twelve patients, comparing radiological stabilisation and indirect decompression outcome measures between groups of patients with an isolated degenerative condition of L4-L5 motion segment and unilateral L5 nerve root radiculopathy...
2016: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
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