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https://www.readbyqxmd.com/read/28441316/hemolysis-following-intraoperative-cell-salvage-replacement-in-a-scoliosis-patient-with-sickle-cell-trait-a-case-report
#1
Daniel You, Alejandro Peiro Garcia, Fabio Ferri-de-Barros, David Parsons
STUDY DESIGN: Case Report. OBJECTIVE: To describe a novel presentation of acute renal failure associated with hemolysis following intraoperative cell salvage (ICS) in a neuromuscular scoliosis patient with sickle cell trait (SCT). SUMMARY OF BACKGROUND DATA: Hemolysis associated acute renal failure following ICS in patients with SCT has not been previously reported. Sickle cell disease is regarded as a relative contraindication for ICS due to the risk of red blood cell sickling in the hypoxic cell saver reservoir...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28437349/a-new-navigational-tool-for-pedicle-screw-placement-in-patients-with-severe-scoliosis-a-pilot-study-to-prove-feasibility-accuracy-and-identify-operative-challenges
#2
Michael Putzier, Patrick Strube, Riccardo Cecchinato, Claudio Lamartina, Eike K Hoff
STUDY DESIGN: Pilot study. OBJECTIVE: To develop and validate the feasibility and accuracy of a newly designed navigational spinal instrument guiding tool for patient-matched thoracic and lumbar pedicle screw placement in patients with severe scoliosis, and to identify intraoperative challenges that may be relevant. SUMMARY OF BACKGROUND DATA: Pedicle screw placement is challenging in severely rotated scoliotic spine with small diameters and asymmetrical shape of the pedicles and vertebrae...
May 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28428081/intraoperative-image-guidance-compared-with-free-hand-methods-in-adolescent-idiopathic-scoliosis-posterior-spinal-surgery-a-systematic-review-on-screw-related-complications-and-breach-rates
#3
Andrew Chan, Eric Parent, Karl Narvacan, Cindy San, Edmond Lou
BACKGROUND CONTEXT: Severe adolescent idiopathic scoliosis (AIS) is a 3D spinal deformity requiring surgery to stop curve progression. Posterior spinal instrumentation and fusion with pedicle screws is the standard surgery for AIS curve correction. Vascular and neurologic complications related to screw-malpositioning are concerns in surgeries for AIS. Breach rates are reported at 15.7%, implant-related complications at 1.1% and neurologic deficit at 0.8%. Free-hand screw insertion remains the prevailing method of screw placement while image guidance has been suggested to improve placement accuracy...
April 17, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28420598/1-5-t-augmented-reality-navigated-interventional-mri-paravertebral-sympathetic-plexus-injections
#4
David R Marker, Paweena U Thainual, Tamas Ungi, Aaron J Flammang, Gabor Fichtinger, Iulian I Iordachita, John A Carrino, Jan Fritz
PURPOSE: The high contrast resolution and absent ionizing radiation of interventional magnetic resonance imaging (MRI) can be advantageous for paravertebral sympathetic nerve plexus injections. We assessed the feasibility and technical performance of MRI-guided paravertebral sympathetic injections utilizing augmented reality navigation and 1.5 T MRI scanner. METHODS: A total of 23 bilateral injections of the thoracic (8/23, 35%), lumbar (8/23, 35%) and hypogastric (7/23, 30%) paravertebral sympathetic plexus were prospectively planned in twelve human cadavers using a 1...
April 18, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28413581/robotic-assisted-inferior-vena-cava-filter-retrieval
#5
Shahin Owji, Tony Lu, Thomas M Loh, Adeline Schwein, Alan B Lumsden, Jean Bismuth
Although anticoagulation remains the mainstay of therapy for patients with venous thromboembolism, guidelines recommend the use of inferior vena cava (IVC) filters in those who fail anticoagulation or have contraindications to its use. Short-term use of filters has proven effective in reducing the rate of pulmonary embolism. However, their extended use is associated with a variety of complications such as thrombosis, filter migration, or caval perforation, thus making a case for timely filter retrieval. This is the case of a 68-year-old female with a history of chronic oral anticoagulation use for multiple deep venous thrombi (DVT) and pulmonary emboli (PE) who required cervical and thoracic spinal intervention for spondylosis and foramina stenosis...
January 2017: Methodist DeBakey Cardiovascular Journal
https://www.readbyqxmd.com/read/28413368/what-is-case-management-a-scoping-and-mapping-review
#6
Sue Lukersmith, Michael Millington, Luis Salvador-Carulla
The description of case management in research and clinical practice is highly variable which impedes quality analysis, policy and planning. Case management makes a unique contribution towards the integration of health care, social services and other sector services and supports for people with complex health conditions. There are multiple components and variations of case management depending on the context and client population. This paper aims to scope and map case management in the literature to identify how case management is described in the literature for key complex health conditions (e...
October 19, 2016: International Journal of Integrated Care
https://www.readbyqxmd.com/read/28395535/the-experience-of-attempting-to-return-to-work-following-spinal-cord-injury-a-systematic-review-of-the-qualitative-literature
#7
Gillean Hilton, Carolyn Unsworth, Gregory Murphy
PURPOSE: This review sought to answer the question "What are the barriers and facilitators influencing people's experience of return to work following spinal cord injury?" METHODS: Studies that met the selection criteria were identified, presented and critically appraised using National Institute for Health and Care Excellence guidelines. Thematic synthesis was completed with studies possessing strong methodological rigor. Synthesis and interpretation involved three stages; coding of primary data; development of descriptive themes reflective of the primary data; and establishment of analytical themes to answer the review question...
April 11, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28379965/tnfa-tnfr2-signaling-is-required-for-glial-ensheathment-at-the-dorsal-root-entry-zone
#8
Cody J Smith, Michael A Wheeler, Lindsay Marjoram, Michel Bagnat, Christopher D Deppmann, Sarah Kucenas
Somatosensory information from the periphery is routed to the spinal cord through centrally-projecting sensory axons that cross into the central nervous system (CNS) via the dorsal root entry zone (DREZ). The glial cells that ensheath these axons ensure rapid propagation of this information. Despite the importance of this glial-axon arrangement, how this afferent nerve is assembled during development is unknown. Using in vivo, time-lapse imaging we show that as centrally-projecting pioneer axons from dorsal root ganglia (DRG) enter the spinal cord, they initiate expression of the cytokine TNFalpha...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28368989/intraoperative-computed-tomography-versus-3d-c-arm-imaging-for-navigated-spinal-instrumentation
#9
Nils Hecht, Hadya Yassin, Marcus Czabanka, Bettina Föhre, Klaus Arden, Thomas Liebig, Peter Vajkoczy
STUDY DESIGN: A prospective case-series study and a retrospective analysis of historical patients for comparison of data. OBJECTIVE: To compare accuracy and limitations of intraoperative computed tomography (iCT)- versus 3D C-arm-based spinal navigation for posterior pedicle screw implantation. SUMMARY OF BACKGROUND DATA: Despite the higher accuracy of navigated compared to non-navigated pedicle screw implantation, it remains a matter of debate whether the use of iCT imaging may further benefit navigated spinal instrumentation compared to more commonly used isocentric 3D C-arm imaging...
March 31, 2017: Spine
https://www.readbyqxmd.com/read/28350952/future-advances-in-spine-surgery-the-aospine-north-america-perspective
#10
Michael G Fehlings, Christopher S Ahuja, Thomas Mroz, Wellington Hsu, James Harrop
This focus issue highlights state-of-the-art techniques, equipment, and practices in the modern era of spine surgery while providing a glimpse into the next generation of patient care. A broad range of topics are presented to cover the full spectrum of the field. Degenerative diseases are discussed in a series of 3 articles on (1) pathophysiology, management, and surgical approaches to degenerative cervical myelopathy; (2) novel approaches to degenerative thoracolumbar disease (eg, interspinous process spacers, minimally invasive/endoscopic approaches); and (3) animal models and emerging therapeutics in degenerative disk disease...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28350950/spine-oncology-metastatic-spine-tumors
#11
David Choi, Mark Bilsky, Michael Fehlings, Charles Fisher, Ziya Gokaslan
Surgery for spinal metastases remains the mainstay treatment for pain, instability, and neurological deterioration due to tumor infiltration of the spine. However, several new therapies are emerging which may improve outcomes further, and in some cases even replace the need for surgery. We now have a better understanding of which factors influence survival and quality of life after surgery, and this underpins the development and application of new treatments, and assessment of outcome.Depending on genetic subtyping of tumors, novel immunotherapies and chemotherapies may be very effective in prolonging quality of life...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28350944/navigation-and-robotics-in-spinal-surgery-where-are-we-now
#12
Samuel C Overley, Samuel K Cho, Ankit I Mehta, Paul M Arnold
Spine surgery has experienced much technological innovation over the past several decades. The field has seen advancements in operative techniques, implants and biologics, and equipment such as computer-assisted navigation and surgical robotics. With the arrival of real-time image guidance and navigation capabilities along with the computing ability to process and reconstruct these data into an interactive three-dimensional spinal "map", so too have the applications of surgical robotic technology. While spinal robotics and navigation represent promising potential for improving modern spinal surgery, it remains paramount to demonstrate its superiority as compared to traditional techniques prior to assimilation of its use amongst surgeons...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28347419/advanced-neuroimaging-in-the-evaluation-of-spinal-cord-tumors-and-tumor-mimics-diffusion-tensor-and-perfusion-weighted-imaging
#13
Xiang Liu, Wei Tian, Hongyan Chen, Thomas A LoStracco, Jing Zhang, Michael Yan Li, Barbara Germin, Henry Z Wang
Spinal cord tumors are an important component of pathologic diseases involving the spinal cord. Conventional magnetic resonance (MR) imaging only provides anatomical information. MR diffusion tensor imaging (DTI) and MR perfusion-weighted imaging (PWI) may detect microstructure diffusion and hemodynamic changes in these tumors. We review recent application studies of MR DTI and PWI in spinal cord tumors. Overall, MR DTI and MR PWI are promising imaging tools that are especially useful in improving differential diagnosis between spinal cord tumors and tumor mimics, preoperative evaluation of resectability, and providing assistance in surgical navigation...
April 2017: Seminars in Ultrasound, CT, and MR
https://www.readbyqxmd.com/read/28343307/modular-organization-of-muscle-activity-patterns-in-the-leading-and-trailing-limbs-during-obstacle-clearance-in-healthy-adults
#14
Michael J MacLellan
Human locomotor patterns require precise adjustments to successfully navigate complex environments. Studies suggest that the central nervous system may control such adjustments through supraspinal signals modifying a basic locomotor pattern at the spinal level. To explore this proposed control mechanism in the leading and trailing limbs during obstructed walking, healthy young adults stepped over obstacles measuring 0.1 and 0.2 m in height. Unobstructed walking with no obstacle present was also performed as a baseline...
March 25, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28328842/three-dimensional-printing-and-computer-navigation-assisted-hemipelvectomy-for-en-bloc-resection-of-osteochondroma-a-case-report
#15
Yaqing Zhang, Lianjiang Wen, Jun Zhang, Guoliang Yan, Yue Zhou, Bo Huang
RATIONALE: Three-dimensional (3D) printed templates can be designed to match an individual's anatomy, allowing surgeons to refine preoperative planning. In addition, the use of computer navigation (NAV) is gaining popularity to improve surgical accuracy in the resection of pelvic tumors. However, its use in combination with 3D printing to assist complex pelvic tumor resection has not been reported. PATIENT CONCERNS: A 36-year-old man presented with left-sided pelvic pain and a fast-growing mass...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28327138/accuracy-of-pedicle-screw-placement-in-patients-with-marfan-syndrome
#16
Jun Qiao, Feng Zhu, Leilei Xu, Zhen Liu, Xu Sun, Bangping Qian, Qing Jiang, Zezhang Zhu, Yong Qiu
BACKGROUND: There is no study concerning safety and accuracy of pedicle screw placement in Marfan syndrome. The objective of this study is to investigate accuracy and safety of pedicle screw placement in scoliosis associated with Marfan syndrome. METHODS: CT scanning was performed to analyze accuracy of pedicle screw placement. Pedicle perforations were classified as medial, lateral or anterior and categorized to four grades: ≤ 2 mm as Grade 1, 2.1-4.0 mm as Grade 2, 4...
March 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28323088/localization-of-the-corticospinal-tract-within-the-porcine-spinal-cord-implications-for-experimental-modeling-of-traumatic-spinal-cord-injury
#17
Anna Victoria Leonard, Joshua York Menendez, Betty Maki Pat, Mark N Hadley, Candace Lorraine Floyd
Spinal cord injury (SCI) researchers have predominately utilized rodents for SCI modeling and experimentation. Unfortunately, a large number of novel therapies developed in rodent models have failed to demonstrate efficacy in human clinical trials which suggests that improved animal models are an important translational tool. Recently, porcine models of SCI have been identified as a valuable intermediary model for preclinical evaluation of promising therapies to aid clinical translation. However, the localization of the major spinal tracts in pigs has not yet been described...
March 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28299317/application-of-intraoperative-ct-guided-navigation-in-simultaneous-minimally-invasive-anterior-and-posterior-surgery-for-infectious-spondylitis
#18
Meng-Huang Wu, Navneet Kumar Dubey, Ching-Yu Lee, Yen-Yao Li, Chin-Chang Cheng, Chung-Sheng Shi, Tsung-Jen Huang
This study was aimed at evaluating the safety and efficacy of using intraoperative computed tomography- (iCT-) guided navigation in simultaneous minimally invasive anterior and posterior surgery for infectious spondylitis. Nine patients with infectious spondylitis were enrolled in this study. The average operative time was 327.6 min (range, 210-490) and intraoperative blood loss was 407 cc (range, 50-1,200). The average duration of hospital stay was 48.9 days (range, 11-76). Out of a total of 54 pedicle screws employed, 53 screws (98...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28296814/pedicle-screw-safety-how-much-anterior-breach-is-safe-a-cadaveric-and-ct-based-study
#19
Vishal Sarwahi, Monica Payares, Rachel Gecelter, Stephen Wendolowski, Kathleen Maguire, Dan Wang, Beverly Thornhill, Terry Amaral
STUDY DESIGN: Clinical retrospective chart review and basic science study OBJECTIVES.: To determine the safety limits of an anterior/anterorolateral misplaced pedicle screw on CT scan in spinal deformity. SUMMARY OF BACKGROUND DATA: While the limits of medial breaches (<4 mm) are known, the safe limits for anterior/anterolateral breaches in spine deformity are not yet defined. METHODS: This study had two parts. In part I, post-operative CT scans of 165 patients operated on for spine deformity were reviewed for screw misplacement (2800 screws)...
March 14, 2017: Spine
https://www.readbyqxmd.com/read/28296707/the-use-of-intraoperative-ct-and-navigation-for-the-treatment-of-spinal-deformity-in-open-and-minimally-invasive-surgery
#20
Joseph R O'Brien
No abstract text is available yet for this article.
April 1, 2017: Spine
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