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https://www.readbyqxmd.com/read/28432435/c4-5-foraminal-stenosis-predicts-c5-palsy-after-expansive-open-door-laminoplasty
#1
Ho-Jin Lee, Jae-Sung Ahn, Byungkon Shin, Hoseok Lee
INTRODUCTION: Laminoplasty is frequently performed in cervical myelopathy patients, but can lead to unexpected postoperative C5 palsy. Although several studies have examined the pathogenesis and prevention of postoperative C5 palsy, many controversies remain and some radiological findings identified as risk factors were not correlated with our outcomes. PURPOSE: This study sought reliable radiological findings that predict C5 palsy after laminoplasty and examined why the predictors of C5 palsy did not apply in our series...
April 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28425069/a-prospective-serial-mri-study-following-acute-traumatic-cervical-spinal-cord-injury
#2
Joost P H J Rutges, Brian K Kwon, Manraj Heran, Tamir Ailon, John T Street, Marcel F Dvorak
PURPOSE: In acute traumatic cervical spinal cord injury (SCI) patients, we sought to characterize how objective MRI measures of injury change during the first 3 week post-injury. METHODS: Six MRI scans each were planned in 19 cervical SCI patients within the first 3 week post-injury. Length of cord edema, maximum spinal cord compression, maximum canal compromise, and presence and length of hematoma were measured. RESULTS: Length of spinal cord edema increased in the first 48 h after SCI, followed by a gradual decrease in the 3 weeks after injury...
April 19, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28413736/targeted-intraspinal-radiofrequency-ablation-for-lumbar-spinal-stenosis
#3
Robert E Jacobson, Michelle Granville, Jesse Hatgis DO
INTRODUCTION: By using a combination of magnetic resonance imaging (MRI) and computed tomography (CT) of the lumbar spine, it is possible to distinguish between spinal stenosis caused by bone compression and specific soft tissue epidural intraspinal lesions that cause localized spinal canal stenosis and neural compression. Examples include facet cysts and yellow ligament hypertrophy. Many of these patients are elderly with medical comorbidities that make open surgery problematic. MATERIALS & METHODS: This is a study of patients with predominantly soft tissue stenosis being treated with targeted intraspinal radiofrequency (RF) heat ablation...
March 10, 2017: Curēus
https://www.readbyqxmd.com/read/28407702/assessment-of-clinical-symptoms-in-lumbar-foraminal-stenosis-using-the-japanese-orthopaedic-association-back-pain-evaluation-questionnaire
#4
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/28402031/evaluation-of-osseous-associated-cervical-spondylomyelopathy-in-dogs-using-kinematic-magnetic-resonance-imaging
#5
Michele Provencher, Amy Habing, Sarah A Moore, Laurie Cook, Gary Phillips, Ronaldo C da Costa
Osseous-associated cervical spondylomyelopathy in dogs is characterized by both static and dynamic spinal cord compression; however, standard MRI methods only assess static compression. In humans with cervical spondylotic myelopathy, kinematic MRI is commonly used to diagnose dynamic spinal cord compressions. The purpose of this prospective, analytical study was to evaluate kinematic MRI as a method for characterizing the dynamic component of osseous-associated cervical spondylomyelopathy in dogs. We hypothesized that kinematic MRI would allow visualization of spinal cord compressions that were not identified with standard imaging...
April 12, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/28399553/rectus-capitis-posterior-minor-histological-and-biomechanical-links-to-the-spinal-dura-mater
#6
Gabriel Venne, Brian J Rasquinha, Manuela Kunz, Randy E Ellis
STUDY DESIGN: Serial histological investigation was performed on 10 cadaveric specimens and biomechanical tests were performed on five specimens, both focused on the tissue connexion between the rectus capitis posterior minor (RCPMi) and the spinal dura. OBJECTIVE: This study had two components: to clarify the microscopic structure of the tissue link between RCPMi and the dura mater, and to evaluate the mechanical role of this tissue complex. SUMMARY OF BACKGROUND DATA: Dissection-based and imaging-based reports have suggested a connective tissue link between the RCPMi and the dura mater at the posterior-atlanto-occipital (PAO) level...
April 15, 2017: Spine
https://www.readbyqxmd.com/read/28396950/giant-cell-tumor-of-the-thoracic-spine-completely-removed-by-total-spondylectomy-after-neoadjuvant-denosumab-therapy
#7
Noritaka Yonezawa, Hideki Murakami, Satoshi Kato, Akihiko Takeuchi, Hiroyuki Tsuchiya
PURPOSE: Denosumab, a novel monoclonal antibody that targets the receptor activator of nuclear factor-κB (RANK) ligand (RANKL), has recently been used to treat patients with giant cell tumor of bone (GCTB). However, few reports have described the clinical results of denosumab therapy for spinal GCTB and evaluated treatment efficacy with respect to the entirety of the resected vertebra after denosumab therapy. METHODS: We present the case of a 51-year-old man with T12 GCTB that was completely removed by a total spondylectomy following 10 courses of neoadjuvant denosumab therapy...
April 10, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28394776/correlation-analysis-between-modic-change-of-cervical-vertebrae-and-intramedullary-high-signal-intensity
#8
Hao Zhou, Jin Fan, Peng Sun, Wei Zhou, Qingqing Li, Lipeng Yu, Guoyong Yin
PURPOSE: Clinical studies have shown that endplate Modic change in the cervical spine and intramedullary high signal intensity often occurs simultaneously. We aimed to investigate whether there is a correlation between Modic change and intramedullary high signal intensity, and to explore the possible risk factors. MATERIALS AND METHODS: In total, 133 patients with cervical spondylotic myelopathy treated at the First Affiliated Hospital of Nanjing Medical University between May 2009 and March 2013 were enrolled in the study...
April 7, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28394460/suspected-air-embolism-through-the-thoracic-ventral-internal-vertebral-venous-plexus-during-hemilaminectomy-in-dogs
#9
V Mortera-Balsa, H van Oostrom, C Yeamans, R Gutierrez-Quintana, J Penderis, N Granger
Venous air embolism entering via the ventral internal vertebral venous plexus was suspected during thoracic spinal surgery in two dogs. In both cases, air was seen bubbling from a pool of blood on the floor of the vertebral canal accompanied by sudden cardiopulmonary disturbances: low end-tidal carbon dioxide pressure, tachycardia and reduction in oxygen in the blood. One dog became dyspnoeic and one died.
April 10, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28389931/physicochemical-characterization-of-mineral-deposits-in-human-ligamenta-flava
#10
Sylwia Orzechowska, Andrzej Wróbel, Marcin Kozieł, Wiesław Łasocha, Eugeniusz Rokita
The aim of our study was the detailed characterization of calcium deposits in ligamenta flava. The use of microcomputed tomography allowed extending the routine medical investigations to characterize mineral grains in the microscopic scale. A possible connection between spinal stenosis and ligament mineralization was investigated. The studies were carried out on 24 surgically removed ligamentum flavum samples divided into control and stenosis groups. Physicochemical characterization of the inorganic material was performed using X-ray fluorescence, X-ray diffraction, and Fourier transform infrared spectroscopy...
April 7, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28385420/less-is-more-efficacy-of-rapid-3d-t2-space-in-ed-patients-with-acute-atypical-low-back-pain
#11
Nicholas A Koontz, Richard H Wiggins, Megan K Mills, Michael S McLaughlin, Elaine C Pigman, Yoshimi Anzai, Lubdha M Shah
RATIONALE AND OBJECTIVES: Emergency department (ED) patients with acute low back pain (LBP) may present with ambiguous clinical findings that pose diagnostic challenges to exclude cauda equina syndrome (CES). As a proof of concept, we aimed to determine the efficacy of a rapid lumbar spine (LS) magnetic resonance imaging (MRI) screening protocol consisting of a single 3D-T2 SPACE FS (3D-T2 Sampling Perfection with Application optimized Contrasts using different flip angle Evolution fat saturated) sequence relative to conventional LS MRI to exclude emergently treatable pathologies in this complex patient population...
April 3, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28384950/familial-schwannomatosis-a-diagnostic-challenge
#12
Sameer Ajit Mansukhani, Rajendra Prasad R Butala, Sunil H Shetty, Ravindra G Khedekar
Schwannomatosis is a disease characterized by the development of multiple benign tumours originating from Schwann cells. Schwannomatosis is a member of the family of diseases known as Neurofibromatosis (NF). Patients with Schwannomatosis develop multiple Schwannomas on cranial, spinal and peripheral nerves. We report a rare case of a 60-year-old female who presented with a painful swelling on the ulnar aspect of her distal forearm. She underwent an excisional biopsy for it; which was suggestive of a Schwannoma...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28382220/abnormal-central-motor-conduction-at-the-upper-but-not-lower-limbs-correlates-with-severe-cervical-spondylosis-discussion-of-an-unexpected-observation
#13
Spyros N Deftereos
INTRODUCTION: A novel pattern of transcranial magnetic stimulation (TMS) abnormalities in cervical spondylotic myelopathy (CSM) comprising abnormal central motor conduction time (CMCT) to the upper limbs and normal CMCT to the lower limbs was observed. CSM was more severe radiologically and tended to be more severe clinically when this pattern was encountered. CASE PRESENTATION: To further characterize this observation, 414 consecutive TMS evaluations of cervical spondylosis were reviewed...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28382215/central-cord-syndrome-from-blast-injury-after-gunshot-wound-to-the-spine-a-case-report-and-a-review-of-the-literature
#14
Juan Galloza, Juan Valentin, Edwardo Ramos
INTRODUCTION: Central Cord Syndrome (CCS) is the most common of the spinal cord injury syndromes. Few cases have been presented with gunshot wound (GSW) as a cause of a central cord syndrome, and none, to our knowledge, has been presented without any evidence of central canal bullet/bone fragments. CASE PRESENTATION: A 27-year-old male suffered two close-range gunshot wounds, one to the left neck and one to the left shoulder. CT scan showed C5 spinous process fracture and paraspinal muscle hemorrhage without evidence of central canal stenosis or bullet/bone fragments...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28379572/risk-factors-for-ineffectiveness-of-posterior-decompression-and-dekyphotic-corrective-fusion-with-instrumentation-for-beak-type-thoracic-ossification-of-the-posterior-longitudinal-ligament-a-single-institute-study
#15
Shiro Imagama, Kei Ando, Zenya Ito, Kazuyoshi Kobayashi, Tetsuro Hida, Kenyu Ito, Mikito Tsushima, Yoshimoto Ishikawa, Akiyuki Matsumoto, Masayoshi Morozumi, Satoshi Tanaka, Masaaki Machino, Kyotaro Ota, Hiroaki Nakashima, Norimitsu Wakao, Yoshihiro Nishida, Yukihiro Matsuyama, Naoki Ishiguro
BACKGROUND: Thoracic ossification of the posterior longitudinal ligament (T-OPLL) is treated surgically with instrumented posterior decompression and fusion. However, the factors determining the outcome of this approach and the efficacy of additional resection of T-OPLL are unknown. OBJECTIVE: To identify these factors in a prospective study at a single institution. METHODS: The subjects were 70 consecutive patients with beak-type T-OPLL who underwent posterior decompression and dekyphotic fusion and had an average of 4...
March 30, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28377864/open-door-laminoplasty-creation-of-a-new-vertebral-arch
#16
Monica Lara-Almunia, Javier Hernandez-Vicente
BACKGROUND: We describe the carrying out of our open door laminoplasty technique by reproducing a posterior vertebral arch using a local originating autologous bony graft and titanium plates. METHODS: We designed a prospective study and present our first 16 patients. The clinical results were evaluated with the JOA score, Nurick scale and the VAS. The functional and radiological evaluation was performed with radiographs, CT and MRI, and the measurements of the dimensions of the spinal canal were carried out with the MIPAV programme ( Johns Hopkins University)...
2017: International Journal of Spine Surgery
https://www.readbyqxmd.com/read/28374329/the-prevalence-of-tandem-spinal-stenosis-and-its-characteristics-in-a-population-based-mri-study-the-wakayama-spine-study
#17
Keiji Nagata, Noriko Yoshimura, Hiroshi Hashizume, Yuyu Ishimoto, Shigeyuki Muraki, Hiroshi Yamada, Hiroyuki Oka, Hiroshi Kawaguchi, Toru Akune, Sakae Tanaka, Kozo Nakamura, Munehito Yoshida
PURPOSE: Tandem spinal stenosis (TSS) is a condition of combined spinal stenosis in the cervical and lumbar regions. The purpose of this study was to determine the prevalence of radiographic TSS and its association with developmental canal stenosis (DCS). The second purpose was to investigate the extent to which radiographic TSS is associated with cervical myelopathy and symptomatic LSS. METHODS: We recruited 1011 (336 men and 675 women) participants in this population-based study...
April 3, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28373079/temporary-short-segment-pedicle-screw-fixation-for-thoracolumbar-burst-fractures-comparative-study-with-or-without-vertebroplasty
#18
Hiroyuki Aono, Keisuke Ishii, Hidekazu Tobimatsu, Yukitaka Nagamoto, Shota Takenaka, Masayuki Furuya, Horii Chialki, Motoki Iwasaki
BACKGROUND CONTEXT: Short-segment posterior spinal instrumentation for thoracolumbar burst fracture provides superior correction of kyphosis by an indirect reduction technique, but it has a high failure rate. PURPOSE: The purpose of the study we report here was to compare outcomes for temporary short-segment pedicle screw fixation with vertebroplasty and for such fixation without vertebroplasty STUDY DESIGN: Prospective multicenter comparative study. PATIENT SAMPLE: We studied 62 consecutive patients with thoracolumbar burst fracture who underwent short-segment posterior instrumentation using ligamentotaxis with Schanz screws with or without vertebroplasty...
March 31, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28367945/a-case-of-superficial-siderosis-ameliorated-after-closure-of-dural-deficit-detected-by-mri-ciss-constructive-interference-in-steady-state-imaging
#19
Ayako Sakoda, Ken-Ichiro Yamashita, Mitsumasa Hayashida, Yukihide Iwamoto, Ryo Yamasaki, Jun-Ichi Kira
A 64-year-old male developed headache, dizziness, and difficulty hearing, two years after an operation for chronic subdural hematoma due to head injury. These symptoms gradually worsened over the following 15 years. As he showed bloody cerebrospinal fluid (CSF) and marginal hypointensity on the surface of the brain and spinal cord on T2/T2*-weighted MRI, he was diagnosed with superficial siderosis (SS), although the source of the bleeding was unclear and anti-hemorrhagic drugs were ineffective. When he was admitted to our hospital, neurological examination disclosed horizontal gaze-evoked nystagmus, severe bilateral hearing loss, scanning speech, and limb and truncal ataxia...
March 30, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28366654/posterior-short-fusion-without-neural-decompression-using-pedicle-screws-and-spinous-process-plates-a-simple-and-effective-treatment-for-neurological-deficits-following-osteoporotic-vertebral-collapse
#20
Atsushi Nakano, Choman Ryu, Ichiro Baba, Takashi Fujishiro, Yoshiharu Nakaya, Masashi Neo
BACKGROUND: The optimal treatment of neurological deficits following osteoporotic vertebral collapse (OVC) is controversial, owing to complications that result from fragile bone quality. In the present study, we assessed surgical results following posterior spinal fusion without decompression. We achieved stable fusion over a short segment of the spinal column using pedicle screws and spinous process plates, maximizing the use of the preserved posterior elements. METHODS: We reviewed surgical data, perioperative complications, clinical outcomes, and radiographic data of 20 consecutively recruited patients with delayed neurological deficits following OVC, who experienced posterior short fusion without neural decompression...
March 30, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
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