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Lumbar instrumentation

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https://www.readbyqxmd.com/read/28072800/modified-percutaneous-lumbar-foraminoplasty-and-percutaneous-endoscopic-lumbar-discectomy-instrument-design-technique-notes-and-5-years-follow-up
#1
Zhen-Zhou Li, Shu-Xun Hou, Wei-Lin Shang, Ke-Ran Song, Hong-Liang Zhao
BACKGROUND: Conventional percutaneous endoscopic lumbar discectomy (PELD) with an "inside-outside" technique has 4.3% - 10.3% surgical failure rate, especially in central herniated discs (HDs), migrated HDs, and axillary type HDs. PELD with foraminoplasty has been used for complex HDs. Percutaneous lumbar foraminoplasty (PLF), which is performed with a trephine or bone reamer introduced over a guidewire without a protective working cannula in the original Tessys technique, can quickly cut the hypertrophied bony structure under fluoroscopic guidance, and risk injury to the exiting and traversing nerve roots...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28061485/comparison-of-the-effects-of-sufentanil-and-fentanyl-intravenous-patient-controlled-analgesia-after-lumbar-fusion
#2
Do Keun Kim, Seung Hwan Yoon, Ji Yong Kim, Chang Hyun Oh, Jong Kwon Jung, Jin Kim
OBJECTIVE: Postoperative pain is one of the major complaints of patients after lumbar fusion surgery. The authors evaluated the effects of intravenous patient controlled analgesia (IV-PCA) using fentanyl or sufentanil on postoperative pain management and pain-related complications. METHODS: Forty-two patients that had undergone surgery with lumbar instrumentation and fusion at single or double levels constituted the study cohort. Patients were equally and randomly allocated to a sufentanil group (group S) or a fentanyl group (group F) for patient controlled analgesia (PCA)...
January 1, 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28059982/morbidity-of-adult-spinal-deformity-surgery-in-elderly-has-declined-over-time
#3
Peter G Passias, Gregory W Poorman, Cyrus M Jalai, Brian Neuman, Rafael de la Garza-Ramos, Emily Miller, Amit Jain, Daniel Sciubba, Shearwood McClelland, Louis Day, Subbu Ramachadran, Shaleen Vira, Bassel Diebo, Evan Isaacs, Olivia Bono, Shay Bess, Michael Gerling, Virginie Lafage
STUDY DESIGN: A retrospective review of a prospectively collected database, the Nationwide Inpatient Sample (NIS), years 2003 to 2012. OBJECTIVES: The aim of this study was to examine trends in the management of scoliosis in elderly (age >75 yrs) patients from 2003 to 2012. SUMMARY OF BACKGROUND DATA: Scoliosis incidence rises with increasing age, and age has been shown to be an independent risk factor for surgical complications in scoliosis surgery...
January 4, 2017: Spine
https://www.readbyqxmd.com/read/28059687/congenital-hypoplasia-of-the-lumbar-pedicle-with-spondylolisthesis-report-of-2-cases
#4
Chang-Sheng Hsieh, Sang-Ho Lee, Hyung Chang Lee, Hyeong-Seok Oh, Byeong-Wook Hwang, Sang-Joon Park, Jian-Han Chen
Congenital hypoplasia of the spinal pedicle is a rare condition. Previously reported cases were treated conservatively or with posterior instrumented fusion. However, the absence or hypoplasia of the lumbar pedicle may increase the difficulty of pedicle screw fixation and fusion. Herein, the authors describe 2 cases of rare adult congenital hypoplasia of the right lumbar pedicles associated with spondylolisthesis. The patients underwent anterior lumbar interbody fusion with a stand-alone cage as well as percutaneous pedicle screw fixation...
January 6, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28043848/surgical-treatment-of-degenerative-spondylolisthesis
#5
REVIEW
P Guigui, E Ferrero
Degenerative spondylolisthesis is a common pathology, often causing lumbar canal stenosis. There is, however, no strong consensus regarding the various medical and surgical treatments available. Surgery is indicated mainly for perceived functional impairment; when the indication is accepted, several questions determine the choice of surgical strategy. Improvement in neurological symptoms is one of the main treatment objectives. For this, it is useful to perform radicular decompression. Some authors recommend indirect decompression by interbody fusion (ALIF, TLIF, XLIF), others by means of an interspinous spacer but the most frequent technique is direct posterior decompression...
December 30, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28040875/distal-junctional-kyphosis-in-patients-with-scheuermann-s-disease-a-retrospective-radiographic-analysis
#6
Amir Ghasemi, Timo Stubig, Luigi A Nasto, Malik Ahmed, Hossein Mehdian
PURPOSE: To investigate the relationship between preoperative and postoperative spinopelvic alignment and occurrence of DJK/DJF. STUDY DESIGN/SETTING: This was a retrospective observational cohort study. PATIENT SAMPLE: The sample included 40 patients who underwent posterior correction of SK from January 2006 to December 2014. OUTCOME MEASURES: Correlation analysis between the preoperative and postoperative spinopelvic alignment parameters and development of DJK over the course of the study period were studied...
December 31, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28038691/strain-in-posterior-instrumentation-resulted-by-different-combinations-of-posterior-and-anterior-devices-for-long-spine-fusion-constructs
#7
Christopher J Kleck, Damian Illing, Emily M Lindley, Andriy Noshchenko, Vikas V Patel, Cameron Barton, Todd Baldini, Christopher M J Cain, Evalina L Burger
STUDY DESIGN: Clinically related experimental study. OBJECTIVE: Evaluation of strain in posterior low lumbar and spinopelvic instrumentation for multilevel fusion resulting from the impact of such mechanical factors as physiologic motion, different combinations of posterior and anterior instrumentation, and different techniques of interbody device implantation. SUMMARY OF BACKGROUND DATA: Currently different combinations of posterior and anterior instrumentation as well as surgical techniques are used for multilevel lumbar fusion...
January 2017: Spine Deformity
https://www.readbyqxmd.com/read/28038690/the-development-of-a-representative-porcine-early-onset-scoliosis-model-with-a-standalone-posterior-spinal-tether
#8
R Bogie, A K Roth, P C Willems, Vd W Weegen, J J Arts, L W van Rhijn
STUDY DESIGN: In vivo analysis in a porcine model. OBJECTIVES: To develop a porcine experimental scoliosis model representative of early-onset scoliosis (EOS) with the use of a radiopaque ultra-high molecular weight polyethylene (UHMWPE) posterior spinal tether. SUMMARY OF BACKGROUND DATA: Large animal experimental scoliosis models with substantial growth potential are needed to test new fusionless scoliosis correction techniques. Previously described scoliosis models involve rib procedures, which violate the thoracic cage and affect subsequent corrective procedures...
January 2017: Spine Deformity
https://www.readbyqxmd.com/read/28028645/comparison-of-a-calcium-phosphate-bone-substitute-with-recombinant-human-bone-morphogenetic-protein-2-a-prospective-study-of-fusion-rates-clinical-outcomes-and-complications-with-24-month-follow-up
#9
Rhiannon M Parker, Gregory M Malham
PURPOSE: Recombinant human bone morphogenetic protein-2 (rhBMP-2) generally provides high rates of clinical improvement and fusion. However, rhBMP-2 has been associated with adverse effects. Recently, a beta tricalcium phosphate (β-TCP) bone substitute has been developed. The aim of this study was to determine the fusion rates and clinical outcomes of patients treated with β-TCP compared to rhBMP-2. METHODS: One hundred and thirty-five consecutive patients who underwent lateral lumbar interbody fusion with β-TCP (n = 25) or rhBMP-2 (n = 110) in the interbody cage were included in the study...
December 27, 2016: European Spine Journal
https://www.readbyqxmd.com/read/28028448/a-novel-technique-to-repair-a-transverse-sacral-fracture-in-a-previously-fused-lumbosacral-spondylolisthesis
#10
Thomas Noh, Mokbel K Chedid
BACKGROUND: Transverse fractures of the sacrum are rare, and surgical treatment for these fractures ranges from conservative to challenging. Transverse stress fractures of the sacrum after placement of lumbar-to-sacral instrumentation have been previously described. We report a new technique to repair a transverse Type-2 Roy-Camille fracture with spondylolisthesis of S1 over S2 in a previously fused instrumented high-grade L4-L5, L5-S1 spondylolisthesis. CASE DESCRIPTION: A 64-year-old female who previously had an L4-L5, L5-S1 fusion for spondylolisthesis presented with excruciating lower back pain and radiculopathy for over 6 months...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/28027828/prognosis-and-adjacent-segment-disease-after-lumbar-spinal-fusion-surgery-for-destructive-spondyloarthropathy-in-long-term-hemodialysis-patients
#11
Keishi Maruo, Tokuhide Moriyama, Toshiya Tachibana, Shinichi Inoue, Fumihiro Arizumi, Kazuki Kusuyama, Shinichi Yoshiya
BACKGROUND: Lumbar destructive spondyloarthropathy (DSA) is a serious complication in long-term hemodialysis patients. There have not been many reports regarding the surgical management for lumbar DSA. In addition, the adjacent segment pathology after lumbar fusion surgery for DSA is unclear. The objective of this study was to assess the clinical outcome and occurrence of adjacent segmental disease (ASD) after lumbar instrumented fusion surgery for DSA in long-term hemodialysis patients...
December 24, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28017875/correlation-between-radiographic-parameters-and-functional-scores-in-degenerative-lumbar-and-thoracolumbar-scoliosis
#12
Simon Jérémy, Longis Pierre-Marie, Passuti Norbert
INTRODUCTION: Adult scoliosis is a condition in which the spinal deformity occurs because of degeneration. Although various studies have agreed on the importance of restoring the sagittal balance, few have evaluated the relationship between functional scores and radiological parameters. The primary objective of this retrospective study was to demonstrate the correlation between radiographic parameters and functional outcomes in adult patients with lumbar or thoracolumbar degenerative scoliosis...
December 22, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28005616/five-year-reoperation-rates-of-2-level-lumbar-total-disk-replacement-versus-fusion-results-of-a-prospective-randomized-clinical-trial
#13
Kris Radcliff, Jeffrey Spivak, Bruce Darden, Michael Janssen, Thierry Bernard, Jack Zigler
STUDY DESIGN: Long-term analysis of prospective randomized clinical trial data. SUMMARY OF BACKGROUND DATA: Lumbar total disk replacement (TDR) has been found to have equivalent or superior clinical outcomes compared with fusion and decreased radiographic incidence of adjacent level degeneration in single-level cases. OBJECTIVE: The purpose of this particular analysis was to determine the incidence and risk factors for secondary surgery in patients treated with TDR or circumferential fusion at 2 contiguous levels of the lumbar spine...
December 21, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28002915/autologous-bone-marrow-concentrate-combined-with-platelet-rich-plasma-enhance-bone-allograft-potential-to-induce-spinal-fusion
#14
G Vadalà, A Di Martino, F Russo, M C Tirindelli, L De Felice, F Agostini, R Papalia, V Denaro
Bone marrow cells concentrate (BMCs) is a source of osteoprogenitor cells and platelet-rich plasma (PRP) is a source of growth factors. The objective of the study was to determine whether BMC and PRP could increase the potential of bone allograft to induce posterolateral-lumbar spinal fusion compared to the bone allograft alone. A prospective nonrandomized radiographic study has been conduced on 10 patients with posterolateral instrumented fusion for degenerative lumbar disease with 1-year follow-up using CT scan...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/27997507/the-prevalence-and-risk-factors-of-iliac-screw-loosening-after-adult-spinal-deformity-surgery
#15
Tomohiro Banno, Tomohiko Hasegawa, Yu Yamato, Sho Kobayashi, Daisuke Togawa, Shin Oe, Yuki Mihara, Yukihiro Matsuyama
STUDY DESIGN: A retrospective study. OBJECTIVE: We investigated the prevalence of iliac screw loosening and determined risk factors after adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: Lumbosacral fixation is crucial to maintain optimal sagittal alignment. Iliac screws are commonly placed to provide protection for sacral pedicle screws. Radiolucent areas around the screws indicate fixation loss and pseudarthrosis. METHODS: Seventy-two ASD patients (13 men, 59 women; mean age, 69...
December 16, 2016: Spine
https://www.readbyqxmd.com/read/27994793/bone-union-rate-following-instrumented-posterolateral-lumbar-fusion-comparison-between-demineralized-bone-matrix-versus-hydroxyapatite
#16
Woo Dong Nam, Jemin Yi
STUDY DESIGN: Retrospective study. PURPOSE: To compare the union rate of posterolateral lumbar fusion (PLF) using demineralized bone matrix (DBM) versus hydroxyapatite (HA) as bone graft extender. OVERVIEW OF LITERATURE: To our knowledge, there has been no clinical trial to compare the outcomes of DBM versus HA as a graft material for PLF. METHODS: We analyzed prospectively collected data from consecutive 79 patients who underwent instrumented PLF...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27994788/results-of-single-staged-posterior-decompression-and-circumferential-fusion-using-a-transpedicular-approach-to-correct-a-kyphotic-deformity-due-to-thoracolumbar-spinal-tuberculosis
#17
Shaival Dalal, Jayprakash Modi, Shardul Soman, Harshil Patel, Shrikant Dhanani
STUDY DESIGN: This is a prospective study. PURPOSE: The aim of this study was to investigate the results of single-staged posterior decompression and circumferential fusion using a transpedicular approach to correct a kyphotic deformity due to thoracolumbar spinal tuberculosis. OVERVIEW OF LITERATURE: Surgical management is frequently an imperative choice to achieve spinal decompression and deformity correction due to tuberculosis to relieve pain, improve neurology, and reconstruct the spine stability...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27994779/lymphopenia-at-4-days-postoperatively-is-the-most-significant-laboratory-marker-for-early-detection-of-surgical-site-infection-following-posterior-lumbar-instrumentation-surgery
#18
Eiichiro Iwata, Hideki Shigematsu, Akinori Okuda, Yasuhiko Morimoto, Keisuke Masuda, Hiroshi Nakajima, Munehisa Koizumi, Yasuhito Tanaka
STUDY DESIGN: Case control study. PURPOSE: To identify the most significant laboratory marker for early detection of surgical site infection (SSI) using multiple logistic regression analysis. OVERVIEW OF LITERATURE: SSI is a serious complication of spinal instrumentation surgery. Early diagnosis and treatment are crucial. METHODS: We retrospectively reviewed the laboratory data of patients who underwent posterior lumbar instrumentation surgery for degenerative spinal disease from January 2003 to December 2014...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27994774/does-minimally-invasive-spine-surgery-minimize-surgical-site-infections
#19
Arvind Gopalrao Kulkarni, Ravish Shammi Patel, Shumayou Dutta
STUDY DESIGN: Retrospective review of prospectively collected data. PURPOSE: To evaluate the incidence of surgical site infections (SSIs) in minimally invasive spine surgery (MISS) in a cohort of patients and compare with available historical data on SSI in open spinal surgery cohorts, and to evaluate additional direct costs incurred due to SSI. OVERVIEW OF LITERATURE: SSI can lead to prolonged antibiotic therapy, extended hospitalization, repeated operations, and implant removal...
December 2016: Asian Spine Journal
https://www.readbyqxmd.com/read/27994773/biomechanical-analysis-of-a-pedicle-screw-rod-system-with-a-novel-cross-link-configuration
#20
Yasuhiro Nakajima, Masahito Hara, Daisuke Umebayashi, Shoichi Haimoto, Yu Yamamoto, Yusuke Nishimura, Toshihiko Wakabayashi
STUDY DESIGN: The strength effects of a pedicle screw-rod system supplemented with a novel cross-link configuration were biomechanically evaluated in porcine spines. PURPOSE: To assess the biomechanical differences between a conventional cross-link pedicle screw-rod system versus a novel cross-link instrumentation, and to determine the effect of the cross-links. OVERVIEW OF LITERATURE: Transverse cross-link systems affect torsional rigidity, but are thought to have little impact on the sagittal motion of spinal constructs...
December 2016: Asian Spine Journal
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