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Lumbar instrumentation

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https://www.readbyqxmd.com/read/28922280/time-demand-and-radiation-dose-in-3d-fluoroscopy-based-navigation-assisted-3d-fluoroscopy-controlled-pedicle-screw-instrumentations
#1
Horst Balling
STUDY DESIGN: Prospective single-center cohort study to record additional time requirements and radiation dose in navigation-assisted O-arm-controlled pedicle screw (PS) instrumentations. OBJECTIVE: To evaluate amount of extra-time and radiation dose for navigation-assisted PS instrumentations of the thoracolumbosacral spine using O-arm 3D-real-time-navigation (O3DN) compared to non-navigated spinal procedures (NNSP) with a single C-arm and postoperative computed tomography (CT) scan for controlling PS positions...
September 15, 2017: Spine
https://www.readbyqxmd.com/read/28922278/defining-the-critical-elements-for-the-most-common-procedures-in-spine-surgery-a-consensus-of-orthopaedic-and-neurosurgical-surgeons
#2
Joseph L Laratta, Samuel Cohen-Tanugi, Jamal N Shillingford, Joseph M Lombardi, Lawrence G Lenke, K Daniel Riew, Ronald A Lehman, Steven C Ludwig
STUDY DESIGN: Survey. OBJECTIVE: To define the critical elements of common spine surgeries. SUMMARY OF BACKGROUND DATA: Despite significant relevance to the field of spine surgery, the term "critical element" of surgery has not been clearly defined. Every surgical procedure involves numerous steps, each with its own potential for complications and harm to the patient. Despite its crucial role in surgical training, billing, and the ethicality of concurrent surgery, the term "critical element" of surgery has not been defined...
September 15, 2017: Spine
https://www.readbyqxmd.com/read/28919066/clinical-efficacy-of-ct-guided-percutaneous-huge-ilio-psoas-abscesses-drainage-combined-with-posterior-approach-surgery-for-the-management-of-dorsal-and-lumbar-spinal-tuberculosis-in-adults
#3
Authrors Dexin Zou, Junlin Zhou, Xiaobin Zhou, Xiaobing Jiang
PURPOSE: To evaluate the clinical efficacy of CT-guided percutaneous huge ilio-psoas abscesses drainage combined with posterior approach surgery for the management of dorsal and lumbar spinal tuberculosis in 16 adult cases. METHODS: Between January 2006 and June 2013, a total of 16 dorsal and lumbar spinal tuberculosis patients with huge ilio-psoas abscesses underwent two-stage CT-guided percutaneous abscesses drainage and posterior debridement, decompression, intervertebral fusion and instrumentation...
September 12, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28918465/congenital-lumbar-kyphosis-with-skin-ulceration-and-osteomyelitis-in-a-myelomeningocele-child-a-case-report
#4
Benoit Vibert, Marco Turati, Pierre-Yves Rabattu, Marco Bigoni, Ahmad Eid, Aurélien Courvoisier
INTRODUCTION: Kyphosis is a frequent problem in children with spina bifida, and this deformity may cause different complications as respiratory insufficiency, bowel dysfunction, and skin ulcers. CASE REPORT: We report on a 13-year-old myelomeningocele male with a lumbar kyphoscoliosis associated to a septic skin ulceration that resulted in an acute sepsis. An X-ray revealed a kyphosis of 110° and a scoliosis of 25° between T9 and L5. The wound and blood cultures showed Staphylococcus aureus colonization, and an appropriate antibiotic therapy was started...
September 16, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28913559/risk-factors-for-implant-removal-after-spinal-surgical-site-infection
#5
Naoya Tsubouchi, Shunsuke Fujibayashi, Bungo Otsuki, Masanori Izeki, Hiroaki Kimura, Masato Ota, Takeshi Sakamoto, Akira Uchikoshi, Shuichi Matsuda
PURPOSE: Few studies have investigated the risk factors for implant removal after treatment for spinal surgical site infection (SSI). Therefore, there is no firmly established consensus for the management of implants. We aimed to investigate the incidence and risk factors for implant removal after SSI managed with instrumentation, and to examine potential strategies for avoiding implant removal. METHODS: Following a survey of seven spine centers, we retrospectively reviewed the records of 55 patients who developed SSI and were treated with reoperation, out of 3967 patients who had spinal instrumentation between 2003 and 2012...
September 14, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28902106/fine-tuning-the-predictive-model-for-proximal-junctional-failure-in-surgically-treated-patients-with-adult-spinal-deformity
#6
Mitsuru Yagi, Nobuyuki Fujita, Eijiro Okada, Osahiko Tsuji, Narihito Nagoshi, Takashi Asazuma, Ken Ishii, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
STUDY DESIGN: Multi-center retrospective study. OBJECTIVE: To validate and improve the predictive model for proximal junctional failure (PJF) with or without the bone mineral density (BMD) score. SUMMARY OF BACKGROUND DATA: PJF is a serious complication of surgery for adult spinal deformity (ADS). A predictive model for PJF was recently reported that has good accuracy, but does not include BMD, a known PJF risk factor, as a variable. METHODS: We included 145 surgically treated ASD patients who were older than 50 at the time of surgery and had been followed up for at least 2 years...
September 8, 2017: Spine
https://www.readbyqxmd.com/read/28898815/biomechanical-evaluation-of-different-surgical-procedures-in-single-level-transforaminal-lumbar-interbody-fusion-in-vitro
#7
Yuanwu Cao, Fubing Liu, Shengcheng Wan, Yun Liang, Chun Jiang, Zhenzhou Feng, Xiaoxing Jiang, Zixian Chen
BACKGROUNDS: A variety of improved surgical methods were adopted in the transforaminal lumbar interbody fusion. A mechanical stability provides an ideal environment for the formation of a fusion mass and is the basis of their good outcomes. The object of this study is to evaluate the initial similarities and differences of four commonly-used posterior surgical procedures biomechanically. METHODS: Biomechanical testing was performed at L3-4 motion segment in 6 fresh-frozen human cadaveric lumbar spines (L2-L5), including the following sequentially tested configurations: 1) intact motion segment; 2) bilateral pedicle screw fixation; 3) unilateral pedicle screw fixation; 4) unilateral pedicle screw plus contralateral translaminar facet joint screw fixation according to the Magerl technique; and 5) bilateral pedicle screw fixation with bilateral facetectomies...
September 5, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28889983/analysing-the-change-of-sagittal-balance-in-patients-with-lenke-5-idiopathic-scoliosis
#8
Okan Ozkunt, Gökhan Karademir, Kerim Sariyilmaz, Halil Can Gemalmaz, Fatih Dikici, Unsal Domanic
OBJECTIVE: The aim of this study was to evaluate preoperative and postoperative spinopelvic parameters and the influence of lowest instrumented vertebrae on sagittal parameters in Lenke 5 Adolescent Idiopathic Scoliosis (AIS) patients. METHODS: A total of 42 patients (37 females, 5 males; mean age: 16.71 ± 3.46 years) were included in the study. Preoperative and postoperative last follow up lumbar lordosis (LL), thoracic kyphosis (TK), pelvic tilt (PT), pelvic incidence (PI) and sacral slope (SS) angles measured...
September 7, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28882354/surgical-treatment-with-pedicle-screws-of-scoliosis-associated-with-osteogenesis-imperfecta-in-children
#9
Lucas Piantoni, Mariano A Noel, Ida A Francheri Wilson, Carlos A Tello, Eduardo Galaretto, Rodrigo G Remondino, Ernesto S Bersusky
STUDY DESIGN: Retrospective study. OBJECTIVE: To assess results of posterior instrumented fusion using pedicle screws in 12 children with osteogenesis imperfecta (OI) with spinal deformity at a single institution from 2001 to 2012. SUMMARY OF BACKGROUND DATA: This is the first case series of OI patients who underwent non-cement augmented screw-rod instrumented fusion published in the literature. METHODS: Of a total of 54 children with spinal deformity associated with OI, 12 (22...
September 2017: Spine Deformity
https://www.readbyqxmd.com/read/28882346/current-evidence-regarding-the-treatment-of-pediatric-lumbar-spondylolisthesis-a-report-from-the-scoliosis-research-society-evidence-based-medicine-committee
#10
Charles H Crawford, A Noelle Larson, Marilyn Gates, R Shay Bess, Tenner J Guillaume, Han Jo Kim, Matthew E Oetgen, Charles G Ledonio, James Sanders, Douglas C Burton
STUDY DESIGN: Structured literature review. OBJECTIVES: The Scoliosis Research Society requested an assessment of the current state of peer-reviewed evidence regarding pediatric lumbar spondylolisthesis to identify what is known and what research remains essential to further understanding. SUMMARY OF BACKGROUND DATA: Pediatric lumbar spondylolisthesis is common, yet no formal synthesis of the published literature regarding treatment has been previously performed...
September 2017: Spine Deformity
https://www.readbyqxmd.com/read/28874979/serotonergic-antidepressants-are-associated-with-increased-blood-loss-and-risk-for-transfusion-in-single-level-lumbar-fusion-surgery
#11
Paul Schadler, Jennifer Shue, Mohamed Moawad, Federico P Girardi, Frank P Cammisa, Andrew A Sama, Russel C Huang, Darren R Lebl, Chad M Craig, Alexander P Hughes
STUDY DESIGN: Retrospective case-control study. PURPOSE: The purpose of this study was to examine the effect of antidepressants on blood loss and transfusion requirements in spinal surgery patients. OVERVIEW OF LITERATURE: Several studies have shown an increase in perioperative bleeding in orthopedic surgery patients on antidepressant drug therapy, yet no study has examined the impact of these agents on spinal surgery patients. METHODS: Charts of patients who underwent single-level spinal fusion (posterior lumbar interbody fusion with posterior instrumentation) performed by five fellowship-trained surgeons at a tertiary spine center between 2008 and 2013, were retrospectively reviewed...
August 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28874975/radiologic-and-clinical-courses-of-degenerative-lumbar-scoliosis-10%C3%A2-25%C3%A2-after-a-short-segment-fusion
#12
Kyu Yeol Lee, Min-Woo Kim, Chul Soon Im, Young Hoon Jung
STUDY DESIGN: Retrospective study. PURPOSE: We report the surgical outcomes of small degenerative lumbar scoliosis (DLS) patients treated by a short-segment fusion and followed for a minimum of 5 years. OVERVIEW OF LITERATURE: Several surgical options are available for the treatment of DLS, such as decompression only, decompression plus a short-segment fusion, or decompression with a long segment fusion. Few studies have evaluated the results of a short-segment fusion in patients with DLS over time...
August 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28874971/adjacent-disc-stress-following-floating-lumbar-spine-fusion-a-finite-element-study
#13
Gunti Ranga Srinivas, Malhar N Kumar, Anindya Deb
STUDY DESIGN: Experimental study. PURPOSE: The study aimed to develop a finite element (FE) model to determine the stress on the discs adjacent to the fused segment following different types of floating lumbar spinal fusions. OVERVIEW OF LITERATURE: The quantification of the adjacent disc stress following different types of floating lumbar fusions has not been reported. The magnitude of the stress on the discs above and below the floating fusion remains unknown...
August 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28874968/posterior-only-approach-with-pedicle-screws-for-the-correction-of-scheuermann-s-kyphosis
#14
Adem Cobden, Akif Albayrak, Yalkin Camurcu, Hakan Sofu, Temel Tacal, Mehmet Akif Kaygusuz
STUDY DESIGN: Retrospective study (level of evidence: level 3). PURPOSE: The purpose of this study was to evaluate the clinical and radiological results of the posterior-only approach with pedicle screws for the treatment of Scheuermann's kyphosis (SK). OVERVIEW OF LITERATURE: The correction of SK with instrumentation can be performed using posterior-only or combined anterior-posterior procedures. With the use of all-pedicle screw constructs in spine surgery, the posterior-only approach has become a popular option for the definitive treatment of SK...
August 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28872530/modified-en-bloc-spondylectomy-for-tumors-of-the-thoracic-and-lumbar-spine-surgical-technique-and-outcomes
#15
Akash A Shah, Nuno R Paulino Pereira, Frank X Pedlow, John C Wain, Sam S Yoon, Francis J Hornicek, Joseph H Schwab
BACKGROUND: Total en bloc spondylectomy (TES) for the treatment of spinal tumors decreases local recurrence and improves survival compared with intralesional resection. TES approaches vary in both the number of stages to complete the procedure and instruments with which osteotomies are performed. METHODS: We describe a 2-stage technique that employs the use of threadwire saws. We performed a retrospective review of cases of primary tumors and solitary metastases involving the thoracic or lumbar spine treated with use of our modified technique at our institution between 2010 and 2016, identifying eligible patients by searching for specific phrases in operative reports found in our oncologic database...
September 6, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28869902/acute-effects-of-anesthetic-lumbar-spine-injections-on-temporal-spatial-parameters-of-gait-in-individuals-with-chronic-low-back-pain-a-pilot-study
#16
Carl L Herndon, MaryBeth Horodyski, Heather K Vincent
This study examined whether epidural injection-induced anesthesia acutely and positively affected temporal spatial parameters of gait in patients with chronic low back pain (LBP) due to lumbar spinal stenosis. Twenty-five patients (61.7±13.6years) who were obtaining lumbar epidural injections for stenosis-related LBP participated. Oswestry Disability Index (ODI) scores, Medical Outcomes Short Form (SF-36) scores, 11-point Numerical pain rating (NRSpain) scores, and temporal spatial parameters of walking gait were obtained prior to, and 11-point Numerical pain rating (NRSpain) scores, and temporal spatial parameters of walking gait were obtained after the injection...
August 31, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28842728/discrepancy-between-bone-density-and-bone-material-strength-index-in-three-siblings-with-camurati-engelmann-disease
#17
S Herrera, R Soriano, X Nogués, R Güerri-Fernandez, D Grinberg, N García-Giralt, N Martínez-Gil, S Castejón, A González-Lizarán, S Balcells, A Diez-Perez
Camurati-Engelmann (CE) is a very rare disease affecting one in every million persons worldwide. It is characterized by an enlargement of long bones. We aimed to assess bone characteristics in three siblings with different tools. Even if there was an excess of bone density, quality seemed to be deteriorated. INTRODUCTION: CE disease is a rare monogenic disorder affecting approximately one in every million persons worldwide. It is mainly characterized by a progressive hyperostosis of the periosteum and endosteum of the diaphysis of long bones...
August 25, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28831392/pathoanatomic-risk-factors-for-instability-and-adjacent-segment-disease-in-lumbar-spine-how-to-use-topping-off
#18
REVIEW
J Bredow, L Löhrer, J Oppermann, M J Scheyerer, R Sobottke, P Eysel, J Siewe
PURPOSE: The goal of this review is to identify criteria indicating implantation of hybrid system into lumbar spine and to evaluate general benefits of use. METHODS: A systematic review of literature was performed using current randomized clinical trials, reviews, and meta-analyses. Data sources included relevant literature of human studies identified through searches of Medline Library until May 2015. RESULTS: Predisposing factors for Adjacent Segment Disease (ASDi) are discussed in literature: laminar horizontalization, insufficiency of fascia thoracolumbalis, facet tropism, and facet sagittalization...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28822825/comparison-of-transforaminal-lumbar-interbody-fusion-outcomes-in-patients-receiving-rhbmp-2-versus-autograft
#19
Taleef R Khan, Kalin R Pearce, Steven J McAnany, Colleen M Peters, Munish C Gupta, Lukas P Zebala
BACKGROUND CONTEXT: Recombinant human bone morphogenetic protein 2 (rhBMP-2) plays a pivotal role in complex spine surgery. Despite its limited approval, the off-label use of rhBMP-2 is prevalent, particularly in transforaminal lumbar interbody fusions (TLIF) PURPOSE: To determine the effectiveness and safety of rhBMP-2 use in TLIF procedures versus autograft. STUDY DESIGN: Retrospective Cohort Study PATIENT SAMPLE: Patients older than 18 years undergoing spine surgery for lumbar degenerative spine disease at a single academic institution...
August 16, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28822824/using-spinopelvic-parameters-to-estimate-residual-lumbar-lordosis-assuming-previous-lumbosacral-fusion-a-study-of-normative-values
#20
Hwee Weng Dennis Hey, Kimberly-Anne Tan, Shashidhar Bangalore Kantharajanna, Alex Quok An Teo, Chloe Xiaoyun Chan, Ka-Po Gabriel Liu, Hee-Kit Wong
BACKGROUND CONTEXT: Pelvic Incidence (PI) = Pelvic Tilt (PT) + Sacral Slope (SS) is an established trigonometric equation which can be expanded from studying the fixed pelvis with the spine to a fixed spinopelvic complex with the remnant spine, in scenarios of spinopelvic fusion or ankylosis. For a fixed spinopelvic complex, we propose the equation termed: Lumbar Incidence (LI) = Lumbar Tilt (LT) + Lumbar Slope (LS). PURPOSE: To establish reference values for LI, LT and LS at each lumbar vertebral level, and to show how LI can be used to determine rLL...
August 16, 2017: Spine Journal: Official Journal of the North American Spine Society
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