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Lumbar instrumentation

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https://www.readbyqxmd.com/read/29332115/ultrasound-guided-transversus-abdominis-plane-block-postoperative-analgesia-in-children-with-spinal-dysraphism
#1
Eralp Çevikkalp, Koray Erbüyün, Serpil Erbüyün, Gülay Ok
Pediatric regional anesthesia is widely used to relieve postoperative pain after abdominal surgery. Commonly used techniques of regional anesthesia include lumbar epidural and caudal block. However, the use of central neuraxial blockade has limitations. It is contraindicated in patients with clotting abnormalities, spinal dysraphism with tethered cord syndrome, meningomyelocele, and following spinal surgery with instrumentation. Ultrasound guided transversus abdominis plane block is a new method of regional anesthesia that can be used in settings where central neuraxial blockade is contraindicated...
January 2018: Saudi Medical Journal
https://www.readbyqxmd.com/read/29330724/a-novel-nomogram-for-predicting-postsurgical-intra-abdominal-infection-in-gastric-cancer-patients-a-prospective-study
#2
Chen-Chen Mao, Xiao-Dong Chen, Ji Lin, Wei-Shan Zhu-Ge, Zhong-Dong Xie, Xi-Yi Chen, Feng-Min Zhang, Rui-Sen Wu, Wei-Teng Zhang, Neng Lou, Li Shi, Guan-Bao Zhu, Xian Shen
BACKGROUND: This study aimed to determine the relationship between intra-abdominal infection (IAI) and sarcopenia prospectively and to construct a nomogram to identify patients at a high risk of IAI. METHODS: We conducted a prospective study of 682 consecutive patients with gastric cancer who underwent radical gastrectomy. The sarcopenia elements, including lumbar skeletal muscle index, handgrip strength, and gait speed, were measured before surgery. Factors contributing to IAI were determined through univariate and multivariate analysis...
January 12, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29322970/minimally-invasive-transforaminal-lumbar-interbody-fusion-using-bone-cement-augmented-pedicle-screws-for-lumbar-spondylolisthesis-in-patients-with-osteoporosis-case-series-and-review-of-literature
#3
Venkata Ramesh Chandra Vemula, Bodapati Chandramowliswara Prasad, M A Jagadeesh, Jayachandar Vuttarkar, Sanjeev Kumar Akula
BACKGROUND: Instrumentation in patients with osteoporosis is challenging. Bone cement-augmented fenestrated pedicle screw fixation is a new procedure for fixation in the osteoporotic bone; and, applying minimally invasive techniques to the above is a challenging and novel concept. AIMS: To evaluate the clinical and radiological outcome of minimally invasive spine surgery transforaminal lumbar interbody fusion (MIS-TLIF) in patients with spondylolisthesis and poor bone quality, performed with rigid instrumentation using bone cement [poly(methylmethacrylate)]-augmented fenestrated pedicle screws...
January 2018: Neurology India
https://www.readbyqxmd.com/read/29310355/revision-surgery-for-lumbar-hemivertebra-in-a-7-year-old-child-with-10-year-follow-up-a-case-report-a-care-compliant-article
#4
Xuhong Xue, Sheng Zhao
RATIONALE: Hemivertebrae, which are the most frequent cause of congenital scoliosis, pose a challenge in terms of prognosis and therapy. The current gold standard treatment congenital scoliosis due to a lumbar and thoracic hemivertebra would be hemivertebra resection and short level posterior spinal fusion. Paucity literatures are reported for the treatment of hemivertebra by convex fusion with posterior hemivertebra excision. PATIENT CONCERNS: The patient was first noticed to have a spinal problem at 7 years of age...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29307048/biomechanical-analysis-of-a-new-lumbar-interspinous-device-with-optimized-topology
#5
Chen-Sheng Chen, Shih-Liang Shih
Interspinous spacers used stand-alone preserve joint movement but provide little protection for diseased segments of the spine. Used as adjuncts with fusion, interspinous spacers offer rigid stability but may accelerate degeneration on adjacent levels. Our new device is intended to balance the stability and preserves motion provided by the implant. A new interspinous spacer was devised according to the results of topology optimization studies. Four finite element (FE) spine models were created that consisted of an intact spine without an implant, implantation of the novel, the device for intervertebral assisted motion (DIAM system), and the Dynesys system...
January 6, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29303470/previously-unreported-complications-associated-with-integrated-cage-screws-following-anterior-lumbar-interbody-fusion-report-of-2-cases
#6
Neginder Saini, Mohammad Zaidi, Maureen T Barry, Robert F Heary
Anterior lumbar interbody fusion (ALIF) is a widely performed surgical treatment for various lumbar spine pathologies. The authors present the first reports of virtually identical cases of complications with integrated screws in stand-alone interbody cages. Two patients presented with the onset of S-1 radiculopathy due to screw misplacements following an ALIF procedure. In both cases, an integrated screw from the cage penetrated the dorsal aspect of the S-1 cortical margin of the vertebra, extended into the neural foramen, and injured the traversing left S-1 nerve roots...
January 5, 2018: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29303132/surgical-decompression-for-traumatic-spinal-cord-injury-in-a-tertiary-center
#7
O A Ojo, E O Poluyi, B S Owolabi, O O Kanu, M O Popoola
BACKGROUND: There are controversies regarding the importance and timing of spinal cord decompression following trauma. Documented evidence shows that early decompression in the setting of acute spinal cord injury (SCI) improves neurologic outcomes. Our objective was to evaluate the outcome of posttraumatic spinal cord decompression with or without spinal stabilization in our region. METHODOLOGY: We performed a cross-sectional study on adult patients who presented with acute spinal cord compression of traumatic etiology within a 2-year period...
November 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29290128/short-term-outcomes-of-lateral-lumbar-interbody-fusion-without-decompression-for-the-treatment-of-symptomatic-degenerative-spondylolisthesis-at-l4-5
#8
Peter G Campbell, Pierce D Nunley, David Cavanaugh, Eubulus Kerr, Philip Andrew Utter, Kelly Frank, Marcus Stone
OBJECTIVE Recently, authors have called into question the utility and complication index of the lateral lumbar interbody fusion procedure at the L4-5 level. Furthermore, the need for direct decompression has also been debated. Here, the authors report the clinical and radiographic outcomes of transpsoas lumbar interbody fusion, relying only on indirect decompression to treat patients with neurogenic claudication secondary to Grade 1 and 2 spondylolisthesis at the L4-5 level. METHODS The authors conducted a retrospective evaluation of 18 consecutive patients with Grade 1 or 2 spondylolisthesis from a prospectively maintained database...
January 2018: Neurosurgical Focus
https://www.readbyqxmd.com/read/29290050/osteotomies-in-ankylosing-spondylitis-where-how-many-and-how-much
#9
REVIEW
H Koller, M Mayer, A Hempfing, J Koller
INTRODUCTION: This article presents the current concepts of correction of spinal deformity in ankylosing spondylitis (AS) patients. Untreated AS can be a debilitating disease. In a few patients, disease progression results in severe spinal deformity affecting not only the thoracolumbar, but also the cervical spine. Surgery for correction in AS patients has a long history. With the advent of modern instrumentation, standardization of surgical and anesthesiologic techniques, surgical safety and corrective results could be improved and experiences from lumbar osteotomies could be transferred to the cervical spine...
December 30, 2017: European Spine Journal
https://www.readbyqxmd.com/read/29285406/virtual-autopsy-to-assess-sacral-anatomy-conditions-for-a-minimal-invasive-approach-to-the-spinal-canal-through-the-hiatus-sacralis
#10
Andrea Bodmer, Steffen Ross, Andreas Raabe, Jürgen Beck, Christian T Ulrich, Philippe Schucht
Background: Despite multiple advantages of minimally invasive techniques in spinal surgery, the currently used approaches may lead to postoperative pain and spinal instability. As a natural orifice, the hiatus sacralis offers a nontransmuscular alternative entry point for endoscopic approaches. In this study, we collected data about the complex anatomical conditions of the sacral canal as a basis for the development of a sacral endoscope. Methods: We retrospectively evaluated 192 postmortem human cadaveric specimens with computed tomography (CT)...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29284521/exercise-intervention-for-unilateral-amputees-with-low-back-pain-study-protocol-for-a-randomised-controlled-trial
#11
Joseph G Wasser, Daniel C Herman, MaryBeth Horodyski, Jason L Zaremski, Brady Tripp, Phillip Page, Kevin R Vincent, Heather K Vincent
BACKGROUND: Atraumatic lower limb amputation is a life-changing event for approximately 185,000 persons in the United States each year. A unilateral amputation is associated with rapid changes to the musculoskeletal system including leg and back muscle atrophy, strength loss, gait asymmetries, differential mechanical joint loading and leg length discrepancies. Even with high-quality medical care and prostheses, amputees still develop secondary musculoskeletal conditions such as chronic low back pain (LBP)...
December 29, 2017: Trials
https://www.readbyqxmd.com/read/29282463/prevalence-of-work-related-musculoskeletal-disorders-among-surgeons-and-interventionalists-a-systematic-review-and-meta-analysis
#12
Sherise Epstein, Emily H Sparer, Bao N Tran, Qing Z Ruan, Jack T Dennerlein, Dhruv Singhal, Bernard T Lee
Importance: Physicians in procedural specialties are at high risk for work-related musculoskeletal disorders (MSDs). This has been called "an impending epidemic" in the context of the looming workforce shortage; however, prevalence estimates vary by study. Objectives: To estimate the prevalence of work-related MSDs among at-risk physicians and to evaluate the scope of preventive efforts. Data Sources and Study Selection: Systematic search in MEDLINE (Ovid), Embase (Elsevier), Web of Science, PubMed (National Center for Biotechnology Information), and 2 clinical trial registries, without language restriction, for studies reporting on the prevalence and prevention of work-related MSDs among at-risk physicians published until December 2016...
December 27, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/29280932/comparing-lumbar-disc-space-preparation-with-fluoroscopy-versus-cone-beam-computed-tomography-and-navigation-a-cadaveric-study
#13
Richard K Hurley, Edward R Anderson, Bryan K Lawson, Joseph K Hobbs, James K Aden, Anton Y Jorgensen
STUDY DESIGN: .: Cadaveric study OBJECTIVE..: This cadaveric study sought to evaluate the efficacy of disc space preparation with cone beam-computed tomography with navigation (CBCT+N) for instrument placement compared to instrument placement with conventional fluoroscopy. SUMMARY OF BACKGROUND DATA: .: Disc space preparation from a transforaminal lumbar approach is challenging with respect to visualization, and surgeons currently rely on tactile feel and two-dimensional imaging in the operating room to assess instrument positioning...
December 26, 2017: Spine
https://www.readbyqxmd.com/read/29280929/lumbar-interbody-fusion-a-historical-overview-and-a-future-perspective
#14
Suzanne de Kunder, Kim Rijkers, Inge J M H Caelers, Rob A de Bie, Peter J Koehler, Henk van Santbrink
: In this historical study we present an overview of lumbar interbody fusion surgery, which is one of the most commonly performed instrumented spinal fusion surgeries. The present article focuses on the history of lumbar interbody fusion surgery, starting from the foundation which was laid in the 19 and 20 century until today. The development of material and techniques evolved from simple wiring to the combination of transforaminal interbody fusion with PEEK cages and pedicle screw fixation with poly axial screws...
December 26, 2017: Spine
https://www.readbyqxmd.com/read/29279744/postoperative-spinal-epidural-hematoma-the-danger-caused-by-the-misuse-of-thrombin-containing-local-hemostatics
#15
Dong Ki Ahn, Won Shik Shin, Go We Kim, Ki Hyuk Koo
Study Design: Retrospective case-control study. Purpose: To examine the hypothesis that the misuse of thrombin-containing local hemostatics (TCLH) increases the risk of postoperative spinal epidural hematoma (POSEH). Overview of Literature: Many studies have focused on hypocoagulability as a risk factor for POSEH. However, there are no prior reports on the increased risk of POSEH in hypercoagulable states. Methods: Posterior instrumented lumbar spine surgery cases over 2 consecutive years were divided into two groups: a study group (98 patients in whom TCLH was used) and a control group (176 patients in whom TCLH was not used)...
December 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29279739/evaluation-of-two-novel-integrated-stand-alone-spacer-designs-compared-with-anterior-and-anterior-posterior-single-level-lumbar-fusion-techniques-an-in-vitro-biomechanical-investigation
#16
Craig A Kuhns, Jonathan A Harris, Mir M Hussain, Aditya Muzumdar, Brandon S Bucklen, Saif Khalil
Study Design: In vitro biomechanical investigation. Purpose: To compare the biomechanics of integrated three-screw and four-screw anterior interbody spacer devices and traditional techniques for treatment of degenerative disc disease. Overview of Literature: Biomechanical literature describes investigations of operative techniques and integrated devices with four dual-stacked, diverging interbody screws; four alternating, converging screws through a polyether-ether-ketone (PEEK) spacer; and four converging screws threaded within the PEEK spacer...
December 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/29276370/statistical-prediction-of-hand-force-exertion-levels-in-a-simulated-push-task-using-posture-kinematics
#17
Sol Lim, Clive D'Souza
This study explored the use of body posture kinematics derived from wearable inertial sensors to estimate force exertion levels in a two-handed isometric pushing and pulling task. A prediction model was developed grounded on the hypothesis that body postures predictably change depending on the magnitude of the exerted force. Five body postural angles, viz., torso flexion, pelvis flexion, lumbar flexion, hip flexion, and upper arm inclination, collected from 15 male participants performing simulated isometric pushing and pulling tasks in the laboratory were used as predictor variables in a statistical model to estimate handle height (shoulder vs...
September 2017: Proceedings of the Human Factors and Ergonomics Society ... Annual Meeting
https://www.readbyqxmd.com/read/29243998/adjacent-segment-disease-after-thoracic-pedicle-screw-fixation
#18
Nitin Agarwal, Robert F Heary, Prateek Agarwal
OBJECTIVE Pedicle screw fixation is a technique widely used to treat conditions ranging from spine deformity to fracture stabilization. Pedicle screws have been used traditionally in the lumbar spine; however, they are now being used with increasing frequency in the thoracic spine as a more favorable alternative to hooks, wires, or cables. Although safety concerns, such as the incidence of adjacent-segment disease (ASD) after cervical and lumbar fusions, have been reported, such issues in the thoracic spine have yet to be addressed thoroughly...
December 15, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/29241108/the-efficacy-of-posterior-hemivertebra-resection-with-lumbosacral-fixation-and-fusion-in-the-treatment-of-congenital-scoliosis-a-more-than-2-year-follow-up-study
#19
Qiunan Lyu, Bowen Hu, Chunguang Zhou, Limin Liu, Yueming Song, Xi Yang, Liang Wang, Lei Wang
OBJECTIVE: Hemivertebrae (HV) located at the lower lumbar or lumbosacral region often produce early trunk imbalance and long compensatory curves. Because of the biomechanical characteristics of the lumbosacral junction, the rate of instrumentation failures at the region has always been high. Our study aimed to evaluate the results of posterior HV resection with lumbosacral fixation and fusion in the treatment of congenital scoliosis and to make a preliminary analysis of the possible risk factors for instrument failures...
December 9, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29238647/rsa-in-spine-a-review
#20
REVIEW
Ali Humadi, Sulaf Dawood, Klas Halldin, Brian Freeman
Study Design: Systematic review of literature. Objectives: This systematic review was conducted to investigate the accuracy of radiostereometric analysis (RSA), its assessment of spinal motion and disorders, and to investigate the limitations of this technique in spine assessment. Methods: Systematic review in all current literature to invesigate the role of RSA in spine. Results: The results of this review concluded that RSA is a very powerful tool to detect small changes between 2 rigid bodies such as a vertebral segment...
December 2017: Global Spine Journal
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