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Lumbar instrumentation

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https://www.readbyqxmd.com/read/29770586/surgical-infection-after-posterolateral-lumbar-spine-arthrodesis-ct-analysis-of-spinal-fusion
#1
Pablo Andrés-Cano, Ana Cerván, Miguel Rodríguez-Solera, Jose Antonio Ortega, Natividad Rebollo, Enrique Guerado
OBJECTIVE: To determine the incidence of infection after instrumented lumbar spine surgery, the demographic and surgical variables associated with acute infection, and the influence of infection and debridement on the consolidation of spinal fusion. METHODS: After obtaining approval from the hospital ethics committee, an observational study was made on a prospective cohort of consecutive patients surgically treated by posterolateral lumbar spine arthrodesis (n = 139, 2005-2011)...
May 16, 2018: Orthopaedic Surgery
https://www.readbyqxmd.com/read/29770581/effect-of-static-compression-loads-on-intervertebral-disc-an-in-vivo-bent-rat-tail-model
#2
Wei Xia, Lin-Lin Zhang, Jun Mo, Wen Zhang, Hai-Tao Li, Zong-Ping Luo, Hui-Lin Yang
OBJECTIVE: To evaluate how well different magnitudes of compression-induced degenerative changes using a bent rat tail model simulated human lumbar lordosis. It has been shown that compression plays an important role in intervertebral disc degeneration (IDD). METHODS: Sprague-Dawley rats (n = 25) were instrumented with a special compressive apparatus that was used to bend the intervertebral disc between the 8th and the 10th caudal vertebral bodies using two Kirschner wires inserted percutaneously into the middle of two tail vertebrae...
May 16, 2018: Orthopaedic Surgery
https://www.readbyqxmd.com/read/29767314/minimally-invasive-reduction-and-percutaneous-posterior-fixation-of-one-level-traumatic-thoraco-lumbar-and-lumbar-spine-fractures
#3
Marco Tinelli, Friederike Töpfer, Michael Kreinest, Stefan Matschke, Paul A Grützner, Arnold J Suda
INTRODUCTION: Although open procedures are the gold standard, the alternative approach of minimal invasive reduction using percutaneous screws for thoracic and lumbar spine fractures is under discussion. Aim of this study was to investigate the results of reduction and the accuracy of screw placement in minimally invasive percutaneous posterior instrumentation for these fractures. MATERIALS AND METHODS: One hundred and twenty-seven patients with thoraco-lumbar and lumbar burst fractures and minimal invasive dorsal instrumentation were analyzed retrospectively in terms of the accuracy of pedicle screw placement and results of fracture reduction...
May 16, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29766939/minimally-invasive-options-for-surgical-management-of-adjacent-segment-disease-of-the-lumbar-spine
#4
Mazda K Turel, Mena G Kerolus, Brian T David, Richard G Fessler
Background: The incidence of adjacent segment disease (ASD) after lumbar spine surgery is a condition that has become increasingly common as the rate of lumbar spine surgery continues to rise. Minimally invasive techniques continue to be refined and offer an opportunity to treat ASD with minimal tissue disruption, lower blood loss, a shorter hospital stay, and decreased morbidity. The aim of this report is to describe the various minimally invasive options for ASD with a comprehensive review of the existing literature...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29764386/parkinson-s-disease-diagnostic-observations-paddo-study-rationale-and-design-of-a-prospective-cohort-study-for-early-differentiation-of-parkinsonism
#5
Anouke van Rumund, Marjolein B Aerts, Rianne A J Esselink, Frederick J A Meijer, Marcel M Verbeek, Bastiaan R Bloem
BACKGROUND: Differentiation of Parkinson's disease (PD) from the various types of atypical parkinsonism (AP) such as multiple system atrophy (MSA), progressive supranuclear palsy (PSP), dementia with Lewy bodies (DLB), corticobasal syndrome (CBS) and vascular parkinsonism (VP), can be challenging, especially early in the disease course when symptoms overlap. A major unmet need in the diagnostic workup of these disorders is a diagnostic tool that differentiates the various disorders, preferably in the earliest disease stages when the clinical presentation is similar...
May 16, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29753734/which-neuromuscular-attributes-are-associated-with-changes-in-mobility-among-community-dwelling-older-adults-with-symptomatic-lumbar-spinal-stenosis
#6
Catherine T Schmidt, Rachel E Ward, Pradeep Suri, Dan K Kiely, Richard Goldstein, Ni Pensheng, Dennis E Anderson, Jonathan F Bean
OBJECTIVES: To identify neuromuscular attributes associated with mobility and changes in mobility over two years of follow-up among patients with and without SLSS. DESIGN: Secondary analysis of a longitudinal cohort study. SETTING: Outpatient rehabilitation center. PARTICIPANTS: Community-dwelling older adults >65 years with self-reported mobility limitations. SLSS was determined using self-reported symptoms of neurogenic claudication and imaging-detected lumbar spinal stenosis...
May 10, 2018: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/29748746/radiation-exposure-for-the-surgical-team-in-a-hybrid-operating-room
#7
Konard Schuetze, A Eickhoff, C Dehner, M Schultheiss, F Gebhard, P H Richter
Hybrid-operating rooms enable the surgeon to acquire intraoperative high-resolution 2- and 3D images and use them for navigation. The radiation dose of the operating personal and the patient remains the major concern. In 9 months, 109 pelvic and spine cases were performed using a hybrid operating room. Radiation dose of the surgeon and the assisting nurse was recorded using real-time dosimeters. Lower radiation doses for the main surgeon in navigated dorsal instrumentations of the thoracic spine were recorded...
May 10, 2018: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/29740508/case-presentation-and-short-perspective-on-management-of-foraminal-far-lateral-discs-and-stenosis
#8
REVIEW
Nancy E Epstein
Background: The management of lumbar foraminal/far lateral discs (FOR/FLD) with stenosis remains controversial. Operative choices should be based on each patient's preoperative dynamic X-ray findings, magnetic resonance (MR), and computed tomography (CT) studies. Here we reviewed several options for decompression alone vs. decompression with fusion. Methods: Safe excision of FOR/FLD with stenosis should begin at the level above the disc herniation, as identification of the superior, foraminally, and far laterally exiting nerve root is critical...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29736802/management-of-aortic-injury-during-minimally-invasive-lateral-lumbar-interbody-fusion
#9
REVIEW
Michael M Safaee, Devin Zarkowsky, Charles M Eichler, Murat Pekmezci, Aaron J Clark
PURPOSE: Minimally invasive lateral approaches to the lumbar spine allow for interbody fusion with good visualization of the disk space, minimal blood loss, and decreased length of stay. Major neurologic, vascular, and visceral complications are rare with this approach; however, the steps in management for severe vascular injuries are not well defined. We present a case report of aortic injury during lateral interbody fusion and discuss the use of endovascular repair. METHODS: This study is a case report of an intraoperative aortic injury...
May 7, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29735136/assessment-of-coronal-spinal-alignment-for-adult-spine-deformity-cases-after-intraoperative-t-square-shaped-use
#10
Swamy Kurra, Umesh Metkar, Henaku Yirenkyi, Richard A Tallarico, William F Lavelle
STUDY DESIGN: Retrospectively reviewed surgeries between 2011 and 2015 of patients who underwent posterior spinal deformity instrumentation with constructs involving fusions to pelvis and encompassing at least five levels. OBJECTIVE: Measure the radiographic outcomes of coronal malalignment (CM) after use of an intraoperative T square shaped instrument in posterior spinal deformity surgeries with at least five levels of fusion and extension to pelvis. BACKGROUND: Neuromuscular children found to benefit from intraoperative T square technique to help achieve proper coronal spinal balance with extensive fusions...
May 2018: Spine Deformity
https://www.readbyqxmd.com/read/29735133/optimal-lowest-instrumented-vertebra-for-thoracic-adolescent-idiopathic-scoliosis
#11
Charla R Fischer, Lawrence G Lenke, Keith H Bridwell, Oheneba Boachie-Adjei, Munish Gupta, Yongjung J Kim
STUDY DESIGN: Retrospective cohort chart review. OBJECTIVE: To determine the optimal lowest instrumented vertebra (LIV) following posterior segmental spinal instrumented fusion (PSSIF) of thoracic adolescent idiopathic scoliosis (AIS) with LIV at L2 or above. SUMMARY OF BACKGROUND DATA: Few studies evaluate the optimal LIV based on rotation or center sacral vertical line (CSVL). METHODS: A radiographic assessment of 544 thoracic major AIS patients (average age 14...
May 2018: Spine Deformity
https://www.readbyqxmd.com/read/29734349/bioactive-pedicle-screws-prepared-by-chemical-and-heat-treatments-improved-biocompatibility-and-bone-bonding-ability-in-canine-lumbar-spines
#12
Koji Akeda, Seiji Yamaguchi, Tomiharu Matsushita, Tadashi Kokubo, Koichiro Murata, Norihiko Takegami, Akihiko Matsumine, Akihiro Sudo
BACKGROUND: Titanium (Ti)-6Al-4V alloy, which is widely used in spinal instrumentation with a pedicle screw (PS) system. However, significant clinical problems, including loosening and back-out of PSs, persist. During the last decade, a novel technology that produces bioactive Ti from chemical and heat treatments has been reported that induces the spontaneous formation of a hydroxyapatite (HA) layer on the surface of Ti materials. The purpose of this study was to study the effect of bioactivation of Ti-6Al-4V PSs on the ability of HA formation in vitro and its biocompatibility and bone-bonding ability in vivo...
2018: PloS One
https://www.readbyqxmd.com/read/29732433/bowel-injury-in-lumbar-spine-surgery-a-review-of-the-literature
#13
REVIEW
Ioannis Siasios, Kunal Vakharia, Asham Khan, Joshua E Meyers, Samantha Yavorek, John Pollina, Vassilios Dimopoulos
Although rarely documented in the medical literature, bowel perforation injury can be a severe complication of spine surgery. Our goal was to review current literature regarding this complication and study possible methods of avoidance. We conducted a literature search in the PubMed database between January 1960 and March 2016 using the terms abrasion, bowels, bowel, complication, injury, intestine, intra-abdominal sepsis/shock, perforation, lumbar, spine, surgery, visceral. Diagnostic criteria, outcomes, risk factors, surgical approach, and treatment strategy were the parameters extracted from the search results and used for review...
March 2018: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29732430/effect-of-interbody-fusion-cage-on-clinical-and-radiological-outcome-of-surgery-in-l4-l5-lumbar-degenerative-spondylolisthesis
#14
Farzad Omidi-Kashani, Reza Jalilian, Farideh Golhasani-Keshtan
Background: Lumbar degenerative spondylolisthesis (LDS) is a degenerative slippage of a lumbar vertebra relative to the adjacent vertebra below that can be clinically symptomatic. We aim to compare radiological and clinical outcome of surgery in L4-L5 LDS with or without applying the interbody fusion cage. Methods: We studied 60 patients (mean age, 51.3±13.2 years; follow-up, 53.3±14.6 months) with L4-L5 LDS who had been treated by decompression, pedicle screw and rod instrumentation associated with posterolateral fusion (PLF) without and with transforaminal lumbar interbody fusion (TLIF) in equally divided groups A and B, respectively...
March 2018: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29727335/spinopelvic-fixation
#15
Sean M Esmende, Kalpit N Shah, Alan H Daniels
Fixation at the lumbosacral junction continues to be a challenge for spine surgeons despite advances in spinal instrumentation techniques. The poor bone quality of the sacrum, the complex regional anatomy, and the tremendous biomechanical forces at the lumbosacral junction contribute to the high rates of instrumentation-related complications. Although many spinopelvic fixation techniques have been reported, only a few are still widely used because of the high complication rates associated with previous techniques...
June 1, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29726801/reduction-in-surgical-site-infection-with-suprafascial-intrawound-application-of-vancomycin-powder-in-instrumented-posterior-spinal-fusion-a-retrospective-case-control-study
#16
Shoichi Haimoto, Ralph T Schär, Yusuke Nishimura, Masahito Hara, Toshihiko Wakabayashi, Howard J Ginsberg
OBJECTIVE Recent studies have demonstrated the efficacy of subfascial intrawound application of vancomycin powder in spine surgery in reducing the rate of surgical site infections (SSIs). However, to date no study has evaluated the efficacy and safety of suprafascial application of vancomycin powder in spine surgery. The purpose of this study was to quantify the rate of SSIs after open instrumented posterior spinal fusion with and without application of suprafascial vancomycin powder and to evaluate the rate of vancomycin powder-related local adverse effects...
May 4, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29726793/sublaminar-fixation-for-traumatic-lumbar-fracture-subluxation-with-lateral-listhesis-in-a-2-year-old-patient
#17
Daniel S Yanni, Aurora S Cruz, Alexander Y Halim, Amandip S Gill, Michael G Muhonen, Robert F Heary, Ira M Goldstein
Pediatric spinal trauma can present a surgeon with difficult management decisions given the rarity of these cases, pediatric anatomy, and a growing spine. The need to stabilize a traumatically unstable pediatric spine can be an operative challenge given the lack of instrumentation available. The authors present a surgical technique and an illustrative case that may offer a novel, less disruptive method of stabilization. A 2-year-old girl presented after an assault with an L1-2 fracture subluxation with lateral listhesis and fractured jumped facets exhibited on CT scans...
May 4, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29718896/salmonella-potsdam-causing-lumbar-vertebral-osteomyelitis-a-case-report
#18
Weike Cheng, Kejian Lian, Deqing Luo, Dasheng Lin, Wanqiang Feng, Hang Xian, Tongtao Li
RATIONALE: Salmonella osteomyelitis is an uncommon complication of salmonella infection, especially the salmonella vertebral osteomyelitis (SVO). PATIENT CONCERNS: We reported a case of a 29-year-old female who presented with serious lower back pain and severe limitation of motion for 50 days with no obvious inducements. She once had a fever up to 39.5°C. Physical examination only revealed limited motion of lower back without neurological complications. The laboratory results revealed no specificity...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29713413/comparative-prospective-study-reporting-intraoperative-parameters-pedicle-screw-perforation-and-radiation-exposure-in-navigation-guided-versus-non-navigated-fluoroscopy-assisted-minimal-invasive-transforaminal-lumbar-interbody-fusion
#19
Tarun Dusad, Vishal Kundnani, Shumayou Dutta, Ankit Patel, Gaurav Mehta, Mahendra Singh
Study Design: Prospective cohort study. Purpose: To compare intraoperative parameters, radiation exposure, and pedicle screw perforation rate in navigation-guided versus non-navigated fluoroscopy-assisted minimal invasive transforaminal lumbar interbody fusion (MIS TLIF). Overview of Literature: The poor reliability of fluoroscopy-guided instrumentation and growing concerns about radiation exposure have led to the development of navigation-guided instrumentation techniques in MIS TLIF...
April 2018: Asian Spine Journal
https://www.readbyqxmd.com/read/29713406/assessment-of-paraspinal-muscle-atrophy-percentage-after-minimally-invasive-transforaminal-lumbar-interbody-fusion-and-unilateral-instrumentation-using-a-novel-contralateral-intact-muscle-controlled-model
#20
Luis Alberto Ortega-Porcayo, Andres Leal-López, Miroslava Elizabeth Soriano-López, Carlos Francisco Gutiérrez-Partida, Luis Rodolfo Ramírez-Barrios, Sergio Soriano-Solis, Manuel Rodríguez-García, Hector Antonio Soriano-Solis, José Antonio Soriano-Sánchez
Study Design: Retrospective comparative clinical study. Purpose: This study aimed to assess paraspinal muscle atrophy in patients who underwent minimally invasive transforaminal lumbar interbody fusion (MI-TLIF) and unilateral pedicle screw fixation using a novel contralateral intact muscle-controlled model. Overview of Literature: The increased incidence of paravertebral lumbar muscle injuries after open techniques has raised the importance of implementing minimally invasive spine surgical techniques using tubular retractors and minimally invasive screw placement...
April 2018: Asian Spine Journal
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