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Lumbar spine

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https://www.readbyqxmd.com/read/28634709/incidental-durotomy-in-decompression-for-lumbar-spinal-stenosis-incidence-risk-factors-and-effect-on-outcomes-in-the-spine-tango-registry
#1
Christian Herren, Rolf Sobottke, Anne F Mannion, Thomas Zweig, Everard Munting, Philippe Otten, Tim Pigott, Jan Siewe, Emin Aghayev
PURPOSE: The three aims of this Spine Tango registry study of patients undergoing decompression for spinal stenosis were to: report the rate of dural tear (DT) stratified by treatment centre; find factors associated with an increased likelihood of incurring a DT; and compare treatment outcomes in relation to DT (none vs. repaired vs. unrepaired DT). METHODS: Multivariate logistic regression was used to assess the association between DT and patient and treatment characteristics...
June 20, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28633411/surgeon-level-variability-in-outcomes-cost-and-comorbidity-adjusted-cost-for-elective-lumbar-decompression-and-fusion
#2
Silky Chotai, Ahilan Sivaganesan, John A Sielatycki, Kristin R Archer, Richard Call, Matthew J McGirt, Clinton J Devin
BACKGROUND: The costs and outcomes following degenerative spine surgery may vary from surgeon to surgeon. Patient factors such as comorbidities may increase the health care cost. These variations are not well studied. OBJECTIVE: To understand the variation in outcomes, costs, and comorbidity-adjusted cost for surgeons performing lumbar laminectomy and fusions surgery. METHODS: A total of 752 patients undergoing laminectomy and fusion, performed by 7 surgeons, were analyzed...
June 14, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28633066/an-emg-assisted-modeling-approach-to-assess-passive-lumbar-tissue-loading-in-vivo-during-trunk-bending
#3
Xiaopeng Ning
Lower back pain (LBP) is a condition with high prevalence and high cost both in the United States and around the world. The magnitude of mechanical loading on spine is strongly associated with the occurrence of LBP. Previously, to assess spinal loading, biologically assisted biomechanical models were developed to estimate trunk muscle contraction forces. Loadings on lumbar passive tissues are estimated using anatomical models. However, despite the substantial individual variability in lumbar ligament geometry and viscoelastic properties, the existing anatomical models do not account for these differences...
June 10, 2017: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/28632693/extraosseous-extension-of-aggressive-vertebral-hemangioma-as-a-potential-pitfall-on-68ga-psma-pet-ct
#4
Stephan Probst, Franck Bladou, Gad Abikhzer
A 74-year-old man with newly diagnosed prostate cancer underwent Ga-PSMA PET/CT, which demonstrated intense uptake in and adjacent the L2 vertebral body. Subsequent MRI of the lumbar spine showed an aggressive L2 hemangioma with adjacent soft tissue extension. There was congruence of the intraosseous and extraosseous components of the hemangioma and the PSMA PET uptake. This is a rare but important potential pitfall in Ga-PSMA PET/CT-a soft tissue lesion with intense tracer uptake related not to a nodal metastasis of prostate cancer but to extraosseous extension of an aggressive vertebral body hemangioma...
June 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28632644/do-former-smokers-exhibit-a-distinct-profile-before-and-after-lumbar-spine-surgery
#5
Ehsan Jazini, Steven D Glassman, Erica F Bisson, Eric A Potts, Leah Y Carreon
STUDY DESIGN: Retrospective longitudinal cohort OBJECTIVES.: To determine if former smokers undergoing lumbar spine surgery have distinct baseline and post-operative Patient Reported Outcomes (PROs) compared to never smokers and current smokers SUMMARY OF BACKGROUND DATA.: Smoking has known deleterious effects on patients undergoing lumbar spine surgery. However, former smokers have not been extensively evaluated. There are few studies regarding the relationship between pack-years or duration of smoking cessation, and subsequent clinical outcome...
June 19, 2017: Spine
https://www.readbyqxmd.com/read/28632563/why-lumbar-artificial-disk-replacements-ladrs-fail
#6
Kenneth Pettine, Robert Ryu, Fernando Techy
STUDY DESIGN: A retrospective review of prospectively collected data. OBJECTIVE: To determine why artificial disk replacements (ADRs) fail by examining results of 91 patients in FDA studies performed at a single investigational device exemption (IDE) site with minimum 2-year follow-up. SUMMARY OF BACKGROUND DATA: Patients following lumbar ADR generally achieve their 24-month follow-up results at 3 months postoperatively. MATERIALS AND METHODS: Every patient undergoing ADR at 1 IDE site by 2 surgeons was evaluated for clinical success...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632560/preoperative-depression-smoking-and-employment-status-are-significant-factors-in-patient-satisfaction-after-lumbar-spine-surgery
#7
Laura Chapin, Kelly Ward, Timothy Ryken
STUDY DESIGN: Prospective cohort study. OBJECTIVE: To determine whether comorbidities and demographics, identified preoperatively, can impact patient outcomes and satisfaction after lumbar spine surgery. SUMMARY OF BACKGROUND DATA: The surgical treatment of lower back pain does not always eliminate a patient's pain and symptoms. Revision surgeries are costly and expose the patient to additional risk. We aim to identify patient characteristics that may suggest a greater or lesser likelihood of postsurgical success by examining patient-reported measures and outcomes after surgery...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632556/watertight-sealing-without-lumbar-drainage-for-incidental-ventral-dural-defect-in-transthoracic-spine-surgery-a-retrospective-review-of-53-cases
#8
Sang-Hyeop Jeon, Sang-Ho Lee, Yi Sheng Tsang, Tag-Geun Jung, Ki-Hyoung Moon, Gun Choi, Ketan D Dilip
STUDY DESIGN: A retrospective review. OBJECTIVES: To evaluate the therapeutic efficacy of the triple layer closure technique to establish watertight sealing without diversion of lumbar drainage, in preventing persistent incidental subarachnoid-pleural fistula and other neurological complications related to excessive drainage of cerebrospinal fluid (CSF) after dural defect in transthoracic ossified posterior longitudinal ligament (OPLL) surgery. SUMMARY OF BACKGROUND DATA: CSF leakage into the pleural cavity leads to unfavorable conditions for natural healing of incidental durotomy due to the negative pressure environment of the pleural space and lack of wound healing around the bony cavity near the decompressed spinal cord...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632553/lumbar-retrolisthesis-in-aging-spine-what-are-the-associated-factors
#9
Feng Zhu, Hongda Bao, Zhen Liu, Zezhang Zhu, Shouyu He, Yong Qiu
STUDY DESIGN: A retrospective radiographic study. OBJECTIVE: The aim of this study is to demonstrate that lumbar retrolisthesis serves as an important compensatory mechanism and to identify the possible factor related to lumbar retrolisthesis. SUMMARY OF BACKGROUND DATA: Lumbar instability is one of the common degenerative changes, which presents as 2 radiologic features: anterolisthesis and retrolisthesis. Compared with the extensive studies on anterolisthesis, limit data are available on the characteristics and clinical relevance of lumbar retrolisthesis...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632552/comparative-study-of-c-arms-for-intraoperative-3-dimensional-imaging-and-navigation-in-minimally-invasive-spine-surgery-part-ii-radiation-exposure
#10
Jan-Helge Klingler, Ronen Sircar, Christian Scheiwe, Evangelos Kogias, Marie T Krüger, Christoph Scholz, Ulrich Hubbe
STUDY DESIGN: A radiation exposure study in vitro. OBJECTIVE: This study aimed to compare the radiation exposure of 2 different 3-dimensional (3D) C-arm devices on an anthropomorphic phantom. SUMMARY OF BACKGROUND DATA: Minimally invasive pedicle screw placement requires intraoperative imaging techniques for visualization of the unexposed spine. Mobile 3D C-arms compose a 3D image data set out of multiple successive fluoroscopic images. METHODS: We compared the 3D C-arm devices Siremobil Iso-C 3D (Siemens Sector Healthcare, Erlangen, Germany) and Vision FD Vario 3D (Ziehm Imaging, Nuremberg, Germany) regarding their radiation exposure...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632551/comparative-study-of-c-arms-for-intraoperative-3-dimensional-imaging-and-navigation-in-minimally-invasive-spine-surgery-part-i-applicability-and-image-quality
#11
Jan-Helge Klingler, Ronen Sircar, Christian Scheiwe, Evangelos Kogias, Florian Volz, Marie T Krüger, Ulrich Hubbe
STUDY DESIGN: This was a retrospective analysis. OBJECTIVE: This study compares 2 different 3-dimensional (3D) C-arm devices for intraoperative imaging and navigation with regard to clinical applicability and image quality. SUMMARY OF BACKGROUND DATA: Minimally invasive spine surgery requires intraoperative imaging techniques to adequately visualize the unexposed spine. For this purpose, mobile 3D C-arms became available along with the evolution of intraoperative navigation techniques...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632550/suture-choice-in-lumbar-dural-closure-contributes-to-variation-in-leak-pressures-experimental-model
#12
George M Ghobrial, Christopher M Maulucci, Matthew J Viereck, Sara Beygi, Ameet Chitale, Srinivas Prasad, Jack Jallo, Joshua Heller, Ashwini D Sharan, James S Harrop
STUDY DESIGN: Open-label laboratory investigational study; non-animal surgical simulation. OBJECTIVE: The authors perform a comparison of dural closure strength in a durotomy simulator across 2 different suture materials. SUMMARY OF BACKGROUND DATA: Incidental durotomy leading to persistent cerebrospinal fluid leak adds considerable morbidity to spinal procedures, often complicating routine elective lumbar spinal procedures. Using an experimental durotomy simulation, the authors compare the strength of closure using Gore-Tex with other suture types and sizes, using various closure techniques...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632549/biomechanical-investigation-of-a-novel-revision-device-in-an-osteoporotic-model-pullout-strength-of-pedicle-screw-anchor-versus-larger-screw-diameter
#13
Jacinto Manon, Mir M Hussain, Jonathan Harris, Mark Moldavsky, Frank La Marca, Brandon S Bucklen
STUDY DESIGN: In vitro cadaveric biomechanical study. OBJECTIVE: To assess revision pullout strength of novel anchored screws (AS) versus conventional larger diameter traditional pedicle screws (TPS) in an osteoporotic model. SUMMARY OF BACKGROUND DATA: Pedicle screws are the most ubiquitous method of treating spinal pathologies requiring lumbar fusion. Although these screws are effective in providing 3-column stabilization of the spine, revision surgeries are occasionally necessary, particularly for geriatric and osteoporotic populations...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632548/are-modic-changes-able-to-help-us-in-our-clinical-practice-a-study-of-the-modic-changes-in-young-adults-during-working-age
#14
José V Martínez-Quiñones, José Aso-Escario, Laura González-García, Fabián Consolini, Ricardo Arregui-Calvo
STUDY DESIGN: Modic changes [vertebral endplate spinal changes (VESC)] have been related to degenerative disk disease, and in past decades it was thought that their presence justified the surgical treatment, in particular spinal fusion. OBJECTIVE: The aim of the present study is to investigate its prevalence and features in a population of young workers suffering from low back pain, and explore the eventual relationship with the treatment applied in each case. BACKGROUND DATA: We conducted a retrospectively review of 450 magnetic resonance images from our hospital, in patients with low back pain or sciatica and age below 40...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632547/a-less-invasive-retroperitoneal-lumbar-approach-animal-feasibility-study-and-primary-clinical-study
#15
Yu Qian, Zhen Lin, Cong Jin, Xing Zhao, Minghao Zheng
STUDY DESIGN: Surgical approach development in an animal model, and a prospective study comparing clinical outcomes between novel and conventional approaches in thoracolumbar burst fracture fixation. OBJECTIVE: To investigate the feasibility of a less-invasive retroperitoneal approach to the lumbar spine in a sheep model and to compare the clinical outcomes of anterior reconstruction in the treatment of thoracolumbar burst fractures using novel and conventional approaches...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632546/clinical-outcome-and-postoperative-ct-measurements-of-microendoscopic-decompression-for-lumbar-spinal-stenosis
#16
Xu Zhou, Lei Zhang, Hai-Long Zhang, Shi-Sheng He, Xin Gu, Guang-Fei Gu, Qing-Song Fu
STUDY DESIGN: This was a retrospective case series. OBJECTIVE: To retrospectively evaluate the clinical outcome of microendoscopic decompression for lumbar spinal stenosis (LSS) including an evaluation of the extent of decompression using computed tomography. SUMMARY OF BACKGROUND DATA: Microendoscopic decompression has been a widely applied procedure to treat LSS with satisfactory outcomes and comparatively fewer complications and revision...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632545/computer-assisted-minimally-invasive-transforaminal-lumbar-interbody-fusion-may-be-better-than-open-surgery-for-treating-degenerative-lumbar-disease
#17
Wei Tian, Yun-Feng Xu, Bo Liu, Ya-Jun Liu, Da He, Qiang Yuan, Zhao Lang, Xiao-Guang Han
STUDY DESIGN: This study was a retrospective review of prospectively collected clinical data. OBJECTIVE: To evaluate the clinical and radiologic outcomes of computer-assisted minimally invasive spine surgery transforaminal lumbar interbody fusion (CAMISS-TLIF) and open TLIF for the treatment of 1-level degenerative lumbar disease. SUMMARY OF BACKGROUND DATA: Minimally invasive TLIF is becoming increasingly popular; however, the limited space and high rate of hardware complications associated with this method are challenging to surgeons...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28631843/age-related-spontaneous-lumbar-intervertebral-disc-degeneration-in-a-mouse-model
#18
Takashi Ohnishi, Hideki Sudo, Takeru Tsujimoto, Norimasa Iwasaki
The pathogenesis of intervertebral disc degeneration is unclear, but it is a major cause of several spinal diseases. Animal models have historically provided an appropriate benchmark for understanding the human spine. However, there is little information about when intervertebral disc degeneration begins in the mouse or regarding the relationship between magnetic resonance imaging and histological findings. The aim for this study was to obtain information about age-related spontaneous intervertebral disc degeneration in the mouse lumbar spine using magnetic resonance imaging and a histological score regarding when the intervertebral disc degeneration started and how rapidly it progressed, as well as how our histological score detected the degeneration...
June 20, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28631069/-s2-ala-iliac-screws-for-extended-pelvic-fixation-in-longer-lumbar-instrumentations-description-of-a-freehand-technique
#19
REVIEW
F Lattig, S Weckbach
OBJECTIVE: To reduce the rate of implant failures at the lumbosacral junction in polysegmental lumbar fusions. INDICATIONS: Spinal fusion with deformity correction including L5/S1, revision surgery for pseudoarthrosis L5/S1, screw pull-out and pedicle fractures in S1, and S1/S2 fractures after polysegmental fusions. CONTRAINDICATIONS: Osteosynthesis of complex pelvic ring fractures, tumors of the ilium. Relative contraindication: infection, to avoid contamination of the iliosacral joint...
June 19, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28629805/association-of-hip-radiograph-findings-with-pain-and-function-in-patients-presenting-with-low-back-pain
#20
Heidi Prather, Abby Cheng, Karen Steger May, Vaibhav Maheshwari, Linda VanDillen
BACKGROUND: Relationships between low back pain (LBP) and the hip in patient cohorts have been described primarily in patients with moderate to severe hip osteoarthritis (OA). Less is known about the links of LBP with hip radiographic findings of hip deformity and minimal OA. OBJECTIVE: The objectives were to 1) describe the incidence of radiographic hip deformity or hip OA, 2) describe and compare spine and hip related pain and function in the subset of patients who were found to have radiographic hip deformity or hip OA, and (3) compare patients with evidence of radiographic hip deformity or hip OA to patients without hip radiographic findings...
June 16, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
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