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https://www.readbyqxmd.com/read/29789873/new-implant-based-technologies-in-the-spine
#1
Dimitrios K Filippiadis, Stefano Marcia, Anthony Ryan, Douglas P Beall, Salvatore Masala, Frederic Deschamps, Alexis Kelekis
Vertebral compression fractures (VCFs) may result in a kyphotic deformity which can cause potential systemic complications secondary to respiratory and gastrointestinal dysfunction. The use of implants in the spine for VCF treatment represents a paradigm shift away from cement injection on its own, aiming to combine the analgesic and stabilizing effect of injecting cement into the vertebral body with vertebral height restoration and kyphotic angle correction. Spine implants which can be used for VCF treatment include stents, jacks, PEEK cages and fracture reduction systems...
May 22, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29789351/development-and-validation-of-two-clinical-prediction-models-to-inform-clinical-decision-making-for-lumbar-spinal-fusion-surgery-for-degenerative-disorders-and-rehabilitation-following-surgery-protocol-for-a-prospective-observational-study
#2
Alison B Rushton, Martin L Verra, Andrew Emms, Nicola R Heneghan, Deborah Falla, Michael Reddington, Ashley A Cole, Paul Willems, Lorin Benneker, David Selvey, Michael Hutton, Martijn W Heymans, J Bart Staal
INTRODUCTION: Potential predictors of poor outcome will be measured at baseline: (1) preoperatively to develop a clinical prediction model to predict which patients are likely to have favourable outcome following lumbar spinal fusion surgery (LSFS) and (2) postoperatively to predict which patients are likely to have favourable long-term outcomes (to inform rehabilitation). METHODS AND ANALYSIS: Prospective observational study with a defined episode inception of the point of surgery...
May 22, 2018: BMJ Open
https://www.readbyqxmd.com/read/29786884/bone-morbidity-and-recovery-in-children-with-acute-lymphoblastic-leukemia-results-of-a-six-year-prospective-cohort-study
#3
Leanne M Ward, Jinhui Ma, Bianca Lang, Josephine Ho, Nathalie Alos, Mary Ann Matzinger, Nazih Shenouda, Brian Lentle, Jacob L Jaremko, Beverly Wilson, David Stephure, Robert Stein, Anne Marie Sbrocchi, Celia Rodd, Victor Lewis, Sara Israels, Ronald M Grant, Conrad V Fernandez, David B Dix, Elizabeth A Cummings, Robert Couch, Elizabeth Cairney, Ronald Barr, Sharon Abish, Stephanie A Atkinson, John Hay, Frank Rauch, David Moher, Kerry Siminoski, Jacqueline Halton
Osteoporotic fractures are a significant cause of morbidity in acute lymphoblastic leukemia (ALL). Our objective was to determine the incidence and predictors of fractures and recovery from osteoporosis in pediatric ALL over 6 years following glucocorticoid initiation. Vertebral fractures (VF) and vertebral body reshaping were assessed on annual spine radiographs, low-trauma non-VF were recorded at regular intervals and spine bone mineral density (BMD) was captured every 6 months for 4 years and then annually...
May 22, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29786607/pre-set-extrusion-bioprinting-for-multiscale-heterogeneous-tissue-structure-fabrication
#4
Donggu Kang, Geunseon Ahn, Donghwan Kim, Hyun-Wook Kang, Seokhwan Yun, Won-Soo Yun, Jin-Hyung Shim, Songwan Jin
Recent advances in three-dimensional (3D) bioprinting technology have led to various attempts in fabricating human tissue-like structures. However, current bioprinting technologies have limitations for creating native tissue-like structures. To resolve these issues, we developed a new pre-set extrusion bioprinting technique that can create heterogeneous, multicellular, and multimaterial structures simultaneously. The key to this ability lies in the use of a precursor cartridge that can stably preserve a multimaterial with a pre-defined configuration that can be simply embedded in a syringe-based printer head...
May 22, 2018: Biofabrication
https://www.readbyqxmd.com/read/29786472/high-speed-fluoroscopy-used-to-measure-dynamic-spinal-cord-deformation-in-an-in-vivo-rat-model
#5
Erin Lucas, Tom Whyte, Jie Liu, Colin M Russell, Wolfram Tetzlaff, Peter Alec Cripton
While spinal cord deformation is thought to be a predictor of spinal cord injury severity, few researchers have directly investigated the dynamic cord deformation or distribution of the deformation between white and grey matter of the in vivo spinal cord during impact. This knowledge would help to establish correlations among impact parameters, internal spinal cord deformation, and histological and functional outcomes. Relying on surface deformations alone may not be a sufficient representation of spinal cord deformation...
May 22, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29782395/pull-out-of-upper-thoracic-pedicle-screws-can-cause-spinal-canal-encroachment-in-growing-rod-treatment
#6
Senol Bekmez, Aykut Kocyigit, Zeynep Deniz Olgun, Mehmet Ayvaz, Halil Gokhan Demirkiran, Ergun Karaagaoglu, Muharrem Yazici
BACKGROUND: Proximal foundation failure is a common complication of growing rod (GR) treatment for early-onset scoliosis. Spinal canal encroachment due to pull-out of pedicle screw used as proximal foundation has been anecdotally reported in GR patients. The aim of this study is to report the prevalence of spinal canal encroachment of pedicle screws in GR treatment and determine risk factors using a single-center cohort. METHODS: Inclusion criteria were: (1) GR for early-onset scoliosis and (2) pull-out of at least 1 proximal anchor pedicle screw...
May 4, 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29781783/clinical-and-radiological-outcome-of-non-surgical-management-of-thoracic-and-lumbar-spinal-fracture-dislocations-a-historical-analysis-in-the-era-of-modern-spinal-surgery
#7
Andrei Fernandes Joaquim, Gregory D Schroeder, Alpesh A Patel, Alexander R Vaccaro
CONTEXT: It is well established that traumatic spinal dislocations (AO Type C injuries) should be surgically treated. However, no recent comparative study of surgical versus non-surgical management of type C injuries was found attesting the superiority of surgical treatment. OBJECTIVE: Due to the lack of information about the natural history of non-surgical management of type C injuries, we evaluated the outcome of historical conservative treatment of type C injuries...
May 21, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29778596/anterior-vs-posterior-approach-for-thoracic-corpectomy-an-analysis-of-risk-factors-outcomes-and-complications
#8
Ryan G Chiu, Jonathan Hobbs, Darian R Esfahani, Saavan Patel, David Rosenberg, Clayton L Rosinski, Akash S Patel, Anisse N Chaker, Ankit I Mehta
BACKGROUND: Thoracic corpectomies are performed for various reasons including spinal deformity, trauma, neoplasms, and infection. Regardless of indication, both anterior and posterior approaches are surgical options, selected based on pathology, anatomy, patient characteristics, and surgical experience. Risk profiles and outcomes for these procedures are poorly characterized, however, and the choice between the two approaches remains inconclusive. OBJECTIVE: To compare risk factors and complications for adult patients undergoing anterior and posterior thoracic corpectomies...
May 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29775162/validation-of-prone-intraoperative-measurements-of-global-spinal-alignment
#9
Max Vaynrub, Brandon P Hirsch, Jared Tishelman, Dennis Vasquez-Montes, Aaron J Buckland, Thomas J Errico, Themistocles S Protopsaltis
OBJECTIVE Verifying the adequacy of surgical correction of adult spinal sagittal deformity (SSD) leads to improved postoperative alignment and clinical outcomes. Traditionally, surgeons relied on intraoperative measurements of lumbar lordosis (LL) correction. However, T-1 pelvic angle (TPA) and its component angles more reliably predict postoperative alignment. While TPA is readily measured on standing radiographs, intraoperative radiographs offer poor resolution of the bicoxofemoral axis. A method to recreate this radiographic landmark by extrapolating preoperative measurements has been described...
May 18, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29772989/a-systematic-review-of-all-smart-phone-applications-specifically-aimed-for-use-as-a-scoliosis-screening-tool
#10
Qais Naziri, Jadie Detolla, Westley Hayes, Steven Burekhovich, Andrew Merola, Chibukem Akamnanu, Carl B Paulino
The scoliometer is an inclinometer commonly used in scoliosis screening. The device is used during an Adam's forward bend test, in which a patient bends forward at the hips to measure deformity of the rib cage and spinal column. If a sufficient angle of rotation is measured, then the appropriate referrals and x-rays can be made and taken. This ubiquitous screening tool allows for a quick and simple scoliosis screening and is a mainstay of scoliosis management. With the advent and rapid improvement of smart phone technology, many scoliometer applications have become readily accessible...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29772869/-progression-on-finite-element-modeling-method-in-scoliosis
#11
REVIEW
Ning Fan, Lei Zang, Yong Hai, Peng Du, Shuo Yuan
Scoliosis is a complex spinal three-dimensional malformation with complicated pathogenesis, often associated with complications as thoracic deformity and shoulder imbalance. Because the acquisition of specimen or animal models are difficult, the biomechanical study of scoliosis is limited. In recent years, along with the development of the computer technology, software and image, the technology of establishing a finite element model of human spine is maturing and it has been providing strong support for the research of pathogenesis of scoliosis, the design and application of brace, and the selection of surgical methods...
April 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29772370/does-nasal-carriage-of-staphylococcus-aureus-increase-the-risk-of-post-operative-infections-after-elective-spine-surgery-do-most-infections-occur-in-carriers
#12
Owoicho Adogwa, Victoria D Vuong, Aladine A Elsamadicy, Daniel T Lilly, Shyam A Desai, Syed Khalid, Joseph Cheng, Carlos A Bagley
BACKGROUND: Wound infections following adult spinal deformity surgery place a high toll on patients, providers, and the healthcare system. Staphylococcus aureus is a common cause of postoperative wound infections, and nasal colonization by this organism may be an important factor development of surgical site infections (SSI's). The aim is to investigate whether post-operative surgical site infections after elective spine surgery occur at a higher rate in patients with Methicillin-Resistant Staphylococcus Aureus (MRSA) nasal colonization...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29770179/biomechanical-comparison-between-titanium-and-cobalt-chromium-rods-used-in-a-pedicle-subtraction-osteotomy-model
#13
Kalpit N Shah, Gregory Walker, Sarath C Koruprolu, Alan H Daniels
Instrumentation failure is a common complication following complex spinal reconstruction and deformity correction. Rod fracture is the most frequent mode of hardware failure and often occurs at or near a 3-column osteotomy site. Titanium (Ti) rods are commonly utilized for spinal fixations, however, theoretically stiffer materials, such as cobalt-chrome (CoCr) rods are also available. Despite ongoing use in clinical practice, there is little biomechanical evidence that compares the construct ability to withstand fatigue stress for Ti and Co-Cr rods...
March 29, 2018: Orthopedic Reviews
https://www.readbyqxmd.com/read/29766672/ribcage-deformity-and-the-altered-breathing-pattern-in-children-with-osteogenesis-imperfecta
#14
Antonella LoMauro, Paolo Fraschini, Simona Pochintesta, Marianna Romei, Maria G D'Angelo, Andrea Aliverti
AIM: Osteogenesis Imperfecta (OI) is a genetic disease characterized by bones fragility and progressive deformity. Life expectancy is reduced in the non-lethal most severe type III form before the age of 10 years. The main cause of death in OI is respiratory insufficiency resulting from impaired thoracic function worsened by ribcage deformity and scoliosis. METHODS: We used opto-electronic plethysmography to study chest geometry, the ventilatory, and the thoraco-abdominal pattern at rest in supine position in children younger than 10 years...
May 15, 2018: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29762341/radiation-exposure-to-the-surgeons-and-patients-in-fluoroscopic-guided-segmental-pedicle-screw-placement-for-pediatric-scoliosis
#15
Hiroyuki Yoshihara, Carl B Paulino
STUDY DESIGN: Prospective case series OBJECTIVE.: To analyze the radiation exposure to the surgeons and patients in fluoroscopic-guided segmental pedicle screw placement for pediatric scoliosis SUMMARY OF BACKGROUND DATA.: Fluoroscopic-guided pedicle screw placement is a safer technique for pedicle screw placement in spinal deformity. However, radiation exposure is a concern, particularly for spine surgeons due to the requirement of multiple pedicle screws in spinal deformity surgery...
May 14, 2018: Spine
https://www.readbyqxmd.com/read/29762340/external-validation-of-the-adult-spinal-deformity-asd-frailty-index-asd-fi-in-the-scoli-risk-1-patient-database
#16
Emily K Miller, Lawrence G Lenke, Brian J Neuman, Daniel M Sciubba, Khaled M Kebaish, Justin S Smith, Yong Qiu, Benny T Dahl, Ferran Pellisé, Yukihiro Matsuyama, Leah Y Carreon, Michael G Fehlings, Kenneth M Cheung, Stephen Lewis, Mark B Dekutoski, Frank J Schwab, Oheneba Boachie-Adjei, Hossein Mehdian, Shay Bess, Christopher I Shaffrey, Christopher P Ames
STUDY DESIGN: Analysis of a prospective multicenter database. OBJECTIVE: To assess the ability of the recently created Adult Spinal Deformity (ASD) Frailty Index (ASD-FI) to predict odds of major complications and length of hospital stay for patients who had more severe preoperative deformity and underwent more invasive ASD surgery compared with patients in the database used to create the index. SUMMARY OF BACKGROUND DATA: Accurate preoperative estimates of risk are necessary given the high complication rates currently associated with ASD surgery...
May 14, 2018: Spine
https://www.readbyqxmd.com/read/29762339/the-relationship-between-fear-avoidance-and-neuromuscular-measures-of-function-in-patients-with-adult-degenerative-scoliosis
#17
Ram Haddas, Isador H Lieberman, Andrew Block
STUDY DESIGN: A prospective cohort study. OBJECTIVE: To examine the relationship of fear-avoidance beliefs and neuromuscular activity during gait in adult degenerative scoliosis (ADS) patients. SUMMARY OF BACKGROUND DATA: Among patients with chronic spine pain, fear-avoidance beliefs are predictive of poor surgical outcomes. Fear-avoidance occurs when patients perceive that movement will worsen underlying physical problems. This process leads them to restrict activity, which further heightens emotional distress...
May 14, 2018: Spine
https://www.readbyqxmd.com/read/29755234/the-substantiation-of-the-elastic-viscoplastic-model-of-the-human-spine-for-modeling-the-correction-process-of-kyphoscoliotic-deformation
#18
Konstantin S Sergeev, Valery V Piven
Purpose: The relevance of the problem is caused by an increase in the number of spine-related diseases among children, including scoliosis. Currently, there are no methodologies for the treatment of scoliosis, which ensure an unambiguous positive result. The purpose of the article is to justify the spinal model as an elastic viscoplastic body for further mathematical modeling of the process of spine correction and search for its optimal conditions. Methodology: The leading approach to the study of this problem is the development of techniques for the surgical treatment of deformities of the vertebral column with the aid of an external fixation device for the spine, providing for a rigid connection of the elements of the apparatus with each other and with the spine...
January 2018: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29754139/dichorionic-twins-discordant-for-body-stalk-anomaly-a-management-challenge
#19
Rita Caldas, Cátia Rodrigues, Carla Pina, Rosete Nogueira
Body-stalk anomaly is a sporadic and rare maldevelopment disorder characterised by large abdominal wall defect, spinal deformity and rudimentary umbilical cord. It is considered a lethal condition as there are only few reports of survival but there was at least one case of long-term survival after neonatal surgery.Differential diagnosis includes isolated omphalocele or gastroschisis, short umbilical cord, amniotic band, limb body-wall complex and other polymalformative syndromes.There are few reports about the expectant prenatal management of the body stalk anomaly as the majority of prenatal diagnosed cases undergo early elective termination...
May 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29751181/adult-spinal-deformity-patients-with-previous-fusions-have-an-equal-chance-of-reaching-substantial-clinical-benefit-thresholds-in-health-related-quality-of-life-measures-but-do-not-reach-the-same-absolute-level-of-improvement
#20
Tamir Ailon
BACKGROUND: Substantial clinical benefit (SCB) represents a threshold above which patients recognize substantial improvement and represents a rational target for defining clinical success. In adult spinal deformity (ASD) surgery, previous fusions may impact outcomes after deformity correction. OBJECTIVE: Investigate the impact of prior spinal fusion on the likelihood of reaching SCB thresholds for 2-year health-related quality of life (HRQOL) after ASD surgery. METHODS: We conducted a retrospective review comparing baseline demographic, HRQOL, and radiographic features for ASD patients undergoing primary versus revision procedures...
May 8, 2018: World Neurosurgery
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