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https://www.readbyqxmd.com/read/29200482/computer-simulation-of-two-level-pedicle-subtraction-osteotomy-for-severe-thoracolumbar-kyphosis-in-ankylosing-spondylitis
#1
Ning Zhang, Hao Li, Zheng-Kuan Xu, Wei-Shan Chen, Qi-Xin Chen, Fang-Cai Li
Background: Advanced ankylosing spondylitis is often associated with thoracolumbar kyphosis, resulting in an abnormal spinopelvic balance and pelvic morphology. Different osteotomy techniques have been used to correct AS deformities, unfortunnaly, not all AS patients can gain spinal sagittal balance and good horizontal vision after osteotomy. Materials and Methods: Fourteen consecutive AS patients with severe thoracolumbar kyphosis who were treated with two-level PSO were studied retrospectively...
November 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/29191390/efficacy-of-intraoperative-lumbar-subarachnoid-drainage-for-prevention-of-cerebrospinal-fluid-leak-after-spinal-cord-tumor-resection
#2
Kazuyoshi Kobayashi, Kei Ando, Kenyu Ito, Mikito Tsushima, Akiyuki Matsumoto, Masayoshi Morozumi, Satoshi Tanaka, Masaaki Machino, Naoki Ishiguro, Shiro Imagama
BACKGROUND: Postoperative cerebrospinal fluid (CSF) leakage is a major clinical problem, and prevention of CSF leakage at the surgical site is an important issue. The goal of the study was to evaluate the efficacy of intraoperative lumbar subarachnoid drainage (LSAD) for prevention of CSF leakage after spinal cord tumor resection. METHODS: The subjects were 97 patients with a cervical or thoracic primary intradural spinal cord tumor who underwent surgery at our hospital...
November 27, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29187678/additive-value-of-3t-3d-ciss-imaging-to-conventional-mri-for-assessing-the-abnormal-vessels-of-spinal-dural-arteriovenous-fistulae
#3
Hiroyuki Uetani, Toshinori Hirai, Mika Kitajima, Minako Azuma, Shigetoshi Yano, Hideo Nakamura, Keishi Makino, Yutaka Kai, Yasunori Nagayama, Yoshihito Kadota, Yasuyuki Yamashita
INTRODUCTION: We investigated the additive value of the 3T three-dimensional (3D) constructive interference in steady state (CISS) sequence to conventional magnetic resonance imaging (MRI) for the evaluation of spinal dural arteriovenous fistulae (SDAVF). MATERIALS AND METHODS: We included 16 consecutive patients (15 men, 1 woman; age range 42-81 years; mean 64 years) with SDAVF who underwent 3T MRI and digital subtraction angiography (DSA) before treatment. Two neuroradiologists independently evaluated the presence of abnormal vessels on 3D CISS-, T2- and T1-weighted images (T1WI, T2WI), and contrast-enhanced T1WI using a 3-point grading system...
November 29, 2017: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29175827/poor-overall-quality-of-clinical-practice-guidelines-for-musculoskeletal-pain-a-systematic-review
#4
REVIEW
Ivan Lin, Louise K Wiles, Robert Waller, Roger Goucke, Yusuf Nagree, Michael Gibberd, Leon Straker, Christopher G Maher, Peter P B O'Sullivan
OBJECTIVES: Undertake a systematic critical appraisal of contemporary clinical practice guidelines (CPGs) for common musculoskeletal (MSK) pain conditions: spinal (lumbar, thoracic and cervical), hip/knee (including osteoarthritis) and shoulder. DESIGN: Systematic review of CPGs (PROSPERO number: CRD42016051653).Included CPGs were written in English, developed within the last 5 years, focused on adults and described development processes. Excluded CPGs were for: traumatic MSK pain, single modalities (eg, surgery), traditional healing/medicine, specific disease processes (eg, inflammatory arthropathies) or those that required payment...
November 25, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29174210/ultrasound-guided-spinal-catheter-insertion-in-piglet-preliminary-results
#5
Noemi Romagnoli, Carlotta Lambertini, Domenico Ventrella, Dario Floriano, Alberto Elmi, Francesca Barone, Maria L Bacci
OBJECTIVE: To describe the ultrasound (US) evaluation of the cervical, thoracic and lumbar spinal tracts in piglets and to evaluate the feasibility of the ultrasound guided spinal catheter placement in newborn and paediatric piglets. STUDY DESIGN: Prospective experimental study. ANIMALS: A total of two piglet cadavers (age, 7 and 14 days) and eight commercial crossbreed piglets divided into four groups according to age: 7 (P7), 14 (P14), 21 (P21) and 28 (P28) days...
June 7, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29170836/phase-contrast-cerebrospinal-fluid-flow-magnetic-resonance-imaging-in-qualitative-evaluation-of-patency-of-csf-flow-pathways-prior-to-infusion-of-chemotherapeutic-and-other-agents-into-the-fourth-ventricle
#6
Rajan P Patel, Clark W Sitton, Leena M Ketonen, Ping Hou, Jason M Johnson, Seferino Romo, Stephen Fletcher, Manish N Shah, Marcia Kerr, Wafik Zaky, Michael E Rytting, Soumen Khatua, David I Sandberg
PURPOSE: Nuclear medicine studies have previously been utilized to assess for blockage of cerebrospinal fluid (CSF) flow prior to intraventricular chemotherapy infusions. To assess CSF flow without nuclear medicine studies, we obtained cine phase-contrast MRI sequences that assess CSF flow from the fourth ventricle down to the sacrum. METHODS: In three clinical trials, 18 patients with recurrent malignant posterior fossa tumors underwent implantation of a ventricular access device (VAD) into the fourth ventricle, either with or without simultaneous tumor resection...
November 23, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29169229/novel-vertebral-indices-in-normal-and-spinal-disorder-dogs-using-computed-tomography
#7
Jongsu Lim, Youngmin Yoon, Taesung Hwang, Hee Chun Lee
This study was carried out to derive reference value of normal spine indices, and to evaluate the feasibility of the indices for computed tomography (CT). CT images and magnetic resonance imaging were acquired from clinically normal 12 beagle dogs for normal group and 50 dogs with 56 spinal disorders for patient group. Image acquisition regions were cervical spine (C2 to T1), thoracic spine (T1-T13) and lumbar spine (L1-L7). The measured indices are as follows; the ratio of width to height of spinal cord include dura matter (CR) and vertebral foramen (FR), and the ratio of cross sectional area of spinal cord to vertebral foramen (CFAR)...
November 23, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/29159938/proximate-cause-anatomical-correlates-and-obstetrical-implication-of-a-supernumerary-lumbar-vertebra-in-humans
#8
Robert G Tague
OBJECTIVES: Three issues are considered on variation in number of presacral vertebrae (PSV) in humans: (1) sexual difference in number of PSV, (2) inactivation of Hoxd-11 gene as etiology for a supernumerary lumbar vertebra, and (3) anatomical correlates of a supernumerary lumbar vertebra, including lumbar-sacral nearthrosis, and pelvic size. MATERIALS AND METHODS: Sample was 407 skeletonized females and 1,318 males from United States; ages at death were 20 to 49 years...
November 21, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29154998/intraoperative-vertebroplasty-during-surgical-decompression-and-instrumentation-for-aggressive-vertebral-hemangiomas-a-retrospective-study-of-39-patients-and-review-of-the-literature
#9
Ben Wang, Song Bo Han, Liang Jiang, Xiao Guang Liu, Shao Min Yang, Na Meng, Feng Wei, Zhong Jun Liu
BACKGROUND CONTEXT: Aggressive (Enneking Stage 3, S3) vertebral hemangiomas (VHs) are rare, which might require surgery. However, the choice of surgery for S3 VHs remains controversial because of the rarity of these lesions. PURPOSE: We reported our experience of treating S3 VHs, and evaluated the effectiveness and safety of intraoperative vertebroplasty during decompression surgery for S3 VHs. STUDY DESIGN: This is a retrospective study. PATIENT SAMPLE: Thirty-nine patients with a definitive pathological diagnosis of aggressive VHs who underwent primary decompression surgery in our department were included in this study...
November 14, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29150977/the-cellular-composition-and-glia-neuron-ratio-in-the-spinal-cord-of-a-human-and-a-non-human-primate-comparison-with-other-species-and-brain-regions
#10
Jami Bahney, Christopher S von Bartheld
The cellular composition of brains shows largely conserved, gradual evolutionary trends between species. In the primate spinal cord, however, the glia-neuron ratio was reported to be greatly increased over that in the rodent spinal cord. Here, we re-examined the cellular composition of the spinal cord of one human and one non-human primate species by employing two different counting methods, the isotropic fractionator and stereology. We also determined whether segmental differences in cellular composition, possibly reflecting increased fine motor control of the upper extremities, may explain a sharply increased glia-neuron ratio in primates...
November 18, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29146435/epidemiology-and-management-of-spinal-trauma-in-children-and-adolescents-under-18-years-old
#11
Asdrubal Falavigna, Orlando Righesso, Pedro Guarise da Silva, Felix Adolfo Sanchez Chavez, Ericson Sfreddo, Leandro Pelegrini de Almeida, Manuel Jose Valencia Carrasco, Andrei Fernandes Joaquim
STUDY DESIGN: Retrospective study. OBJECTIVE: Report the epidemiology, clinical aspects and management of spinal trauma in children and adolescents. METHODS: Multicenter study of 215 cases of spinal trauma in individuals younger than 18 years of age. All patients were submitted to preoperative and postoperative radiological and clinical evaluation. The fractures were classified according to the AOSpine fracture classification. Neurological evaluation was performed using the Frankel Scale at admission to hospital and at the last follow-up...
November 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29140961/cervical-foraminal-epidural-blood-patch-for-the-targeted-treatment-of-refractory-cerebrospinal-fluid-leakage-from-a-dural-sleeve
#12
Nuj Tontisirin, Pannawit Benjhawaleemas, Sasikaan Nimmaanrat, Pornchai Sathirapanya, Teeranan Laohawiriyakamol, De Q Tran, Roderick J Finlayson
Epidural blood patches (EBPs) are routinely used to treat symptoms (eg, headaches) associated with spontaneous intracranial hypotension. Although cerebrospinal fluid leakage commonly involves the periforaminal areas of the cervical or thoracic spine, EBPs have been historically performed at the lumbar level. Recent evidence suggests that targeting the causative spinal segment may provide greater clinical benefits. While previous reports have targeted foraminal leaks with segmental thoracic or cervical injections, we present a case report detailing the novel use of a navigable epidural catheter to perform a selective EBP at the C7/T1 foramen...
November 14, 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29138702/a-case-of-c5-vertebral-chordoma-in-a-73-year-old-patient-with-more-than-8-years-of-follow-up-after-total-piecemeal-spondylectomy
#13
Keigo Tanaka, Harutoshi Sakakima, Kazutoshi Hida, Kanako Hatanaka, Kosei Ijiri
Chordoma arising from the cervical spine is rare and the traditional long-term prognosis is typically poor. Total en bloc spondylectomy with a wide margin is generally accepted to be the most appropriate management for thoracic and lumbar malignant tumors. However, this method is still challenging for the cervical spine because of the proximity of the tumor to the vertebral arteries and neural elements. Here, we report a 73-year-old man with a C5 vertebral chordoma treated with total piecemeal spondylectomy...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29127093/development-of-the-ct-syndesmophyte-score-ctss-in-patients-with-ankylosing-spondylitis-data-from-the-sias-cohort
#14
Freek de Bruin, Anoek de Koning, Rosaline van den Berg, Xenofon Baraliakos, Juergen Braun, Sofia Ramiro, Floris A van Gaalen, Monique Reijnierse, Désirée van der Heijde
OBJECTIVES: To develop the CT Syndesmophyte Score (CTSS) for low-dose CT (ldCT) to assess structural damage in the spine of patients with ankylosing spondylitis (AS) and test its reliability. METHODS: Patientswith AS in the SIAS cohort had whole spine ldCT at baseline and 2 years. Syndesmophytes were scored in coronal and sagittal planes in eight quadrants per vertebral unit (VU) as absent=0, <50% of the intervertebral disc space (IDS)=1, ≥50%=2 or bridging the IDS=3 (range 0-552)...
November 10, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29127092/low-dose-ct-detects-more-progression-of-bone-formation-in-comparison-to-conventional-radiography-in-patients-with-ankylosing-spondylitis-results-from-the-sias-cohort
#15
Anoek de Koning, Freek de Bruin, Rosaline van den Berg, Sofia Ramiro, Xenofon Baraliakos, Juergen Braun, Floris A van Gaalen, Monique Reijnierse, Désirée van der Heijde
OBJECTIVES: To compare the CT Syndesmophyte Score (CTSS) for low-dose CT (ldCT) with the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) for conventional radiographs (CR) in patients with ankylosing spondylitis (AS). METHODS: Patients with AS in the Sensitive Imaging in Ankylosing Spondylitis cohort had lateral cervical and lumbar spine CR and whole spine ldCT at baseline and 2 years. CR and ldCT images were scored by two readers, paired by patient, blinded to time order, per imaging modality...
November 10, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29122701/predictors-of-quality-of-life-improvement-after-surgery-for-metastatic-tumors-of-the-spine-prospective-cohort-study
#16
Ori Barzilai, Lily McLaughlin, Mary-Kate Amato, Anne S Reiner, Shahiba Q Ogilvie, Eric Lis, Yoshiya Yamada, Mark H Bilsky, Ilya Laufer
BACKGROUND CONTEXT: Surgical decompression and stabilization followed by radiosurgery represents an effective method for local tumor control and neurologic preservation for patients with metastatic epidural spinal cord compression. We have previously demonstrated improvement in HrQOL after this combined modality treatment ("hybrid therapy"). PURPOSE: The current analysis focuses on delineation of patient-specific prognostic factors predictive of HrQOL change after combined surgery-SRS treatment of MESCC...
November 6, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29118083/the-effect-of-magnification-loupes-on-dental-hygienists-posture-while-exploring
#17
Emily A Ludwig, Gayle B McCombs, Susan L Tolle, Daniel M Russell
Purpose: The purpose of this study was to determine the effects of dental magnification loupes on posture during instrumentation.Methods: A convenience sample of 27 right-handed dental hygienists, with no prior history of injuries or disabilities of the head, neck, or trunk region, enrolled in the study. Baseline posture calibration was taken and tri-axial accelerometers were placed on four locations of the head and trunk (occipital region of head; cervical vertebrae C5; thoracic vertebrae T5; lumbar vertebrae L1) to measure acceleration and the orientation of the body to gravity...
August 2017: Journal of Dental Hygiene: JDH
https://www.readbyqxmd.com/read/29115099/spinal-meningiomas-61-cases-with-predictors-of-early-postoperative-surgical-outcomes
#18
Ahmed B Bayoumi, Yosef Laviv, Ceren N Karaali, Kemal Ertilav, Umit Kepoglu, Zafer O Toktas, Deniz Konya, Ekkehard M Kasper
BACKGROUND: Spinal meningiomas are benign, well-circumscribed and slowly growing intradural tumors that compress the spinal cord. Hereby, a retrospective review of 61 spinal meningioma cases evaluated in terms of demographic, clinical, pathological and radiological features to predict the early postoperative functional outcomes. METHODS: Patients' records and MRI images of all the histologically confirmed spinal meningioma cases that underwent surgical resection at two university hospitals from January 2005 to June 2016 were retrospectively reviewed...
November 7, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29114290/open-c2-vertebroplasty-case-report-technique-and-review-of-literature
#19
Sathwik Raviraj Shetty, Praveen Mahadev Ganigi, Bopanna Kanjithanda Mandanna
Osteolytic lesions of C2 are challenging pathologies to manage. Vertebroplasty, a minimally invasive technique has been widely used in lytic lesions of thoracic and lumbar spine. However, there has been limited experience with percutaneous vertebroplasty at C2, and the procedure is technically difficult. We describe a safer alternative technique of open vertebroplasty for lytic lesions involving the axis. METHODS: The procedure was performed in a 49-year-old male with a metastatic lytic lesion involving the body and dens of C2 using an anterior cervical approach...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29103927/three-dimensional-gait-analysis-reveals-dynamic-alignment-change-in-a-patient-with-dropped-head-syndrome-a-case-report
#20
Kousei Miura, Hideki Kadone, Masao Koda, Hiroshi Kumagai, Katsuya Nagashima, Kengo Fujii, Hiroshi Noguchi, Toru Funayama, Tetsuya Abe, Takeo Furuya, Masashi Yamazaki
Dropped head syndrome (DHS) is a cervical kyphotic deformity caused by apparent weakness of the neck extensor muscles. We often encounter patients whose symptoms, including impaired forward vision and neck pain, deteriorate while walking. This is the first report of a case of dynamic spinal alignment change in a patient with DHS during walking using three-dimensional gait analysis. A 78-year-old Japanese woman complained of impaired forward vision and neck pain while walking. Her radiograph showed severe cervical kyphosis...
November 3, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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