keyword
MENU ▼
Read by QxMD icon Read
search

intramedullary

keyword
https://www.readbyqxmd.com/read/28927206/preoperative-magnetic-resonance-and-intraoperative-computed-tomography-fusion-for-real-time-neuronavigation-in-intramedullary-lesion-surgery
#1
Francesco Costa, Alessandro Ortolina, Andrea Cardia, Marco Riva, Martina Revay, Guido Pecchioli, Carla Daniela Anania, Francesco Asteggiano, Maurizio Fornari
BACKGROUND: Image-guided surgery techniques in spinal surgery are usually based upon fluoroscopy or computed tomography (CT) scan, which allow for a real-time navigation of bony structures, though not of neural structures and soft tissue remains. OBJECTIVE: To verify the effectiveness and efficacy of a novel technique of imaging merging between preoperative magnetic resonance imaging (MRI) and intraoperative CT scan during removal of intramedullary lesions. METHODS: Ten consecutive patients were treated for intramedullary lesions using a navigation system aid...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927205/rare-neurosurgical-complications-of-epidural-injections-an-8-yr-single-institution-experience
#2
Gabriel A Smith, Jonathan Pace, Madeleine Strohl, Anand Kaul, Salim Hayek, Jonathan P Miller
BACKGROUND: Neurosurgical complications from epidural injections have rarely been reported. OBJECTIVE: To define the spectrum of complications from these procedures in order to identify risk factors and strategies for prevention. METHODS: A prospectively maintained database of 14 247 neurosurgical admissions over 8 yr was screened to identify patients who had suffered procedural complications associated with 1182 cervical and 4617 lumbar interlaminar epidural injection procedures performed at a single institution...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28924690/lateral-fixation-an-alternative-surgical-approach-in-the-prevention-of-complete-atypical-femoral-fractures
#3
Mohammad Kharazmi, Karl Michaëlsson, Pär Hallberg, Jörg Schilcher
Little evidence is available on how to treat incomplete atypical fractures of the femur. When surgery is chosen, intramedullary nailing is the most common invasive technique. However, this approach is adopted from the treatment of other types of ordinary femoral fracture and does not aim to prevent the impending complete fracture by interrupting the mechanism underlying the pathology. We suggest a different surgical approach that intends to counteract the underlying biomechanical conditions leading to a complete atypical fracture and thus could be better suited in selected cases...
September 18, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28924384/fgfr3-deficient-mice-have-accelerated-fracture-repair
#4
Yangli Xie, Fengtao Luo, Wei Xu, Zuqiang Wang, Xianding Sun, Meng Xu, Junlan Huang, Dali Zhang, Qiaoyan Tan, Bo Chen, Wanling Jiang, Xiaolan Du, Lin Chen
Bone fracture healing is processed through multiple biological stages that partly recapitulates the skeletal development process. FGFR3 is a negative regulator of chondrogenesis during embryonic stage and plays an important role in both chondrogenesis and osteogenesis. We have investigated the role of FGFR3 in fracture healing using unstabilized fracture model and found that gain-of-function mutation of FGFR3 inhibits the initiation of chondrogenesis during cartilage callus formation. Here, we created closed, stabilized proximal tibia fractures with an intramedullary pin in Fgfr3(-/-)mice and their littermate wild-type mice...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28922881/intraoperative-flow-800-analysis-for-intramedullary-cystic-lesion-a-technical-case-report
#5
Masahiro Sawada, Toshihiro Munemitsu, Masato Hojo
BACKGROUND AND IMPORTANCE: During intramedullary lesion surgery, the lesion site and the posterior median sulcus (PMS) should be accurately identified prior to myelotomy to avoid severe injury of the posterior funiculus. However, intramedullary lesions are fundamentally invisible until the myelotomy is performed. Furthermore, the PMS location is frequently unclear due to lesion-induced swelling or distortion of the spinal cord. Intraoperative indocyanine green videoangiography (ICG-VA) followed by FLOW 800 analysis, which shows vascularization of the spinal parenchyma, may provide a solution for these problems in specific cases...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28921003/mortality-and-cardiorespiratory-complications-in-trochanteric-femoral-fractures-a-ten-year-retrospective-analysis
#6
Juliane Carow, John Bennet Carow, Mark Coburn, Bong-Sung Kim, Benjamin Bücking, Christopher Bliemel, Leo Cornelius Bollheimer, Cornelius Johannes Werner, Jan Philipp Bach, Matthias Knobe
PURPOSE: Despite intense research and innovations in peri-operative management, a high mortality rate and frequent systemic complications in trochanteric femoral fractures persist. The aim of the present study was to identify predictive factors for mortality and cardio-respiratory complications after different treatment methods in a ten year period at a level I trauma centre. METHODS: Retrospectively, all patients above 60 years of age with trochanteric femoral fracture between January 2000 and May 2011 were analyzed at a level I trauma centre...
September 18, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28914871/-intramedullary-spinal-cord-tumors-and-hydrocephalus-an-analysis-of-the-results-of-surgical-treatment-in-541-patients
#7
Yu V Kushel', Yu D Belova, A R Tekoev
The article addresses the problem of intramedullary tumors (IMTs) combined with hydrocephalus (HC). PURPOSE: The study purpose was to explore, based on large clinical material, the occurrence of hydrocephalus combined with intramedullary tumors, possible pathogenetic mechanisms of its development, effect of tumor resection on the course of hydrocephalus, and need and timing of shunting surgery. MATERIAL AND METHODS: We present and analyze the data of the largest individual series of patients of all age groups operated on for IMTs of the spinal cord: 541 patients; 586 operations; age from 2 months to 72 years...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28914349/reverse-total-shoulder-arthroplasty-for-type-i-fracture-sequelae-after-internal-fixation-of-proximal-humerus-fractures
#8
Benedikt Schliemann, Christina Theisen, Clemens Kösters, Michael J Raschke, Andre Weimann
INTRODUCTION: Complications after internal fixation of proximal humerus fracture are common and may require surgical revision. Reverse total shoulder arthroplasty (RTSA) is frequently performed in such cases. The aim of the present study was to evaluate the functional results and complications after RTSA for the treatment of type I fracture sequelae after internal fixation of proximal humerus fractures. MATERIALS AND METHODS: 26 patients (18 female, 8 male) underwent surgical revision of type I fracture sequelae of the proximal humerus after locking plate (n = 22) or intramedullary nail (n = 4) fixation...
September 15, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28913569/antegrade-intramedullary-kirschner-wire-fixation-of-displaced-metacarpal-shaft-fractures
#9
E M van Bussel, R M Houwert, T J M Kootstra, M van Heijl, D Van der Velde, Ph Wittich, J Keizer
PURPOSE: The objective of this study was to analyze complications and patient-related functional outcome after antegrade intramedullary Kirschner-wire fixation of metacarpal shaft fractures. METHODS: All consecutive patients treated from January 2010 until December 2015 were retrospectively analyzed using patient logs and radiographic images. Indications for operative fixation were angulation > 40°, shortening > 2 mm, or rotational deficit. Complications were registered from the patient logs...
September 14, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28913398/total-femur-arthroplasty-for-revision-hip-failure-in-osteogenesis-imperfecta-limits-of-biology
#10
Pablo Sanz-Ruiz, Manuel Villanueva-Martinez, Jose Antonio Calvo-Haro, Esther Carbó-Laso, Javier Vaquero-Martín
Osteogenesis imperfecta (OI) is a rare congenital disease characterized by alterations in bone quality, with susceptibility to fractures, instability, deformities, and osteoarthrosis. Prosthetic surgery in these patients is associated with an abnormally high rate of implant failures. On the other hand, abnormal bone fragility adds to the complexity of revision surgery in such individuals-thus representing a genuine challenge for the orthopaedic surgeon. We present a case of femoral reconstruction in a patient with OI and prosthetic loosening after reconstruction secondary to femoral septic pseudoarthrosis...
September 2017: Arthroplasty Today
https://www.readbyqxmd.com/read/28906308/is-contralateral-templating-reliable-for-establishing-rotational-alignment-during-intramedullary-stabilization-of-femoral-shaft-fractures-a-study-of-individual-bilateral-differences-in-femoral-version
#11
William P Croom, Daniel J Lorenzana, Richard L Auran, Matthew J Cavallero, Nathanael Heckmann, Jackson Lee, Eric A White
OBJECTIVES: To determine native individual bilateral differences in femoral version in a diverse population. METHODS: Computed tomography scans with complete imaging of uninjured bilateral femora were used to determine femoral version and individual bilateral differences in version. Age, sex, and ethnicity of each subject were also collected. Femoral version and individual bilateral differences in version were correlated with demographic variables using univariate and multivariate regression models...
September 11, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28906042/vascular-configurations-of-anastomotic-basket-of-conus-medullaris-in-human-spinal-cord
#12
Santiago Rojas, Marisa Ortega, Alfonso Rodríguez-Baeza
INTRODUCTION: The arterial basket of the conus medullaris is one of several anastomoses between the anterior and posterior spinal arteries. The anatomy of this structure has attracted little attention. This work sought to investigate its configuration in human spinal cords. MATERIALS AND METHODS: Spinal cords from male and female cadavers (n=32) were injected with colored latex through the intercostal, lumbar, medial sacral and the posterior trunks of the hypogastric arteries...
September 14, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28900844/a-pilot-study-on-the-use-of-cerebrospinal-fluid-cell-free-dna-in-intramedullary-spinal-ependymoma
#13
Ian David Connolly, Yingmei Li, Wenying Pan, Eli Johnson, Linya You, Hannes Vogel, John Ratliff, Melanie Hayden Gephart
Cerebrospinal fluid (CSF) represents a promising source of cell-free DNA (cfDNA) for tumors of the central nervous system. A CSF-based liquid biopsy may obviate the need for riskier tissue biopsies and serve as a means for monitoring tumor recurrence or response to therapy. Spinal ependymomas most commonly occur in adults, and aggressive resection must be delicately balanced with the risk of injury to adjacent normal tissue. In patients with subtotal resection, recurrence commonly occurs. A CSF-based liquid biopsy matched to the patient's spinal ependymoma mutation profile has potential to be more sensitive then surveillance MRI, but the utility has not been well characterized for tumors of the spinal cord...
September 12, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28894615/chronic-osteomyelitis-of-the-distal-femur-treated-with-resection-and-delayed-endoprosthetic-reconstruction-a-report-of-three-cases
#14
Sean Ryan, William Eward, Brian Brigman, Robert Zura
Chronic osteomyelitis involving the distal femur often results in amputation or arthrodesis. This article presents three cases of chronic osteomyelitis treated with a staged approach culminating in endoprosthetic reconstruction. Stage one involved resection of infected bone and placement of an intramedullary nail spanning the bony defect between proximal femur and tibia, with antibiotic cement packed around the nail. Patients were then placed on long-term IV +/- oral antibiotics to clear the infection. A "cooldown" period was then used between stages where patients were off antibiotics and inflammatory markers were monitored for signs of remaining infection...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28893094/retrograde-magnetic-internal-lengthening-nail-for-acute-femoral-deformity-correction-and-limb-lengthening
#15
Austin T Fragomen, S Robert Rozbruch
The Precice magnetic internal lengthening intramedullary nail is being used with great success in femur lengthening and deformity correction with a retrograde approach. Areas Covered: Our personal history of limb lengthening and the Precice nail will be reviewed. Several technical aspects are discussed including design updates, pre operative planning, selection of nail length, the use of blocking screws and intra operative temporary external fixation, osteotomy practice, post operative management, and cost analysis...
September 17, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28891696/repair-of-tibiotarsal-rotation-in-7-chukar-partridges-alectoris-chukar-and-12-domestic-pigeons-columba-livia-domestica-with-type-2-external-skeletal-fixator-intramedullary-pin-tie-in
#16
Didar Aydin Kaya, Serhat Özsoy
Rotational deformities of the long bones affect various avian species. Tibiotarsal rotation may cause the leg to deviate up to 180° from the dorsoplantar axis in a matter of days, thus preventing the birds from walking freely and leading to the inability to stand. In this study, tibiotarsal rotation observed in pigeons and partridges was managed by creating a closed fracture in the tibiotarsus and then, following reduction, stabilizing it with an intramedullary tie-in Type 2 external skeletal fixation system...
September 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28891043/treamed-locked-intramedullary-nailing-for-studying-femur-fracture-and-its-complications
#17
O Yoshino, J Brady, K Young, B Hardy, R Matthys, T Buxton, R Appleyard, J Tomka, D Dabirrahmani, P Woodford, M Fadia, R Steck, A Quail, R G Richards, Z J Balogh
Morbidity associated with femur fractures in polytrauma patients is known to be high. The many unsolved clinical questions include the immunological effect of the fracture and its fixation, timing of fracture fixation, management of fracture non-union, effect of infection and critical size of bone defects. The aim of this study was to establish a clinically-relevant and reproducible animal model with regards to histological, biomechanical and radiological changes during bone healing. A custom-designed intramedullary nail with interlocking system (RabbitNail, RISystem AG, Davos Platz, Switzerland) was used for fixation, following femur fracture...
September 11, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28885125/risk-factor-analysis-of-kyphotic-malalignment-after-cervical-intramedullary-tumor-resection-in-adults
#18
Satoshi Nori, Akio Iwanami, Akimasa Yasuda, Narihito Nagoshi, Nobuyuki Fujita, Tomohiro Hikata, Mitsuru Yagi, Takashi Tsuji, Kota Watanabe, Suketaka Momoshima, Morio Matsumoto, Masaya Nakamura, Ken Ishii
OBJECTIVE A number of studies have reported that surgery for cervical intramedullary tumors via the posterior approach can result in postoperative sagittal malalignment of the cervical spine; however, the risk factors remain unclear. The purpose of this study was to investigate the changes in cervical spinal alignment after surgery for cervical intramedullary tumors in adults and to elucidate the risk factors for cervical spinal sagittal misalignment. METHODS Data for the period from April 2001 to December 2011 for all adults who had undergone surgery for cervical intramedullary spinal cord tumors at a single institution were retrospectively analyzed to determine the postoperative changes in cervical spine alignment...
September 8, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28884557/factors-predicting-outcome-of-surgical-treatment-of-spontaneous-spinal-hematomas-a-retrospective-cohort-study-in-four-tertiary-reference-centers
#19
Rafael Martínez-Pérez, Igor Paredes, Natalia Rayo, Pedro DE LA Rosa, Jorge Diaz Molina, Alfonso Lagares
BACKGROUND AND OBJECTIVES: Spontaneous spinal extradural hematoma (SSEH) is a rare but disabling disorder. Most of the previous assumptions regarding the factors that contribute to poor neurological recovery from SSEH are based on small case samples or conditions with similar clinical presentations but different physiopathologies. Our goal was to find the most relevant prognostic factors for neurological recovery in patients suffering SSEH treated with surgical evacuation. MATERIAL AND METHODS: From a retrospective database of 29 surgical patients with SSEH, several clinical and radiological variables were recorded...
September 7, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28882604/-contribution-of-temozolomide-chemotherapy-for-intramedullary-grade-ii-spinal-cord-astrocytomas-in-adults-our-experience
#20
E Chaskis, V Minichini, S Luce, D Devriendt, S Goldman, O De Witte, N Sadeghi, F Lefranc
INTRODUCTION: Grade II intramedullary astrocytomas are rare tumors. Despite a well-defined role of adjuvant temozolomide chemotherapy for brain gliomas, the contribution of this therapy for intramedullary gliomas is not yet clearly defined. METHOD: We retrospectively analyzed the data of 5 adult patients treated with temozolomide between 2008 and 2015 for a grade II intramedullary astrocytoma with progression after surgery. RESULTS: Five patients from 19 to 70 years of age (median, 37years) underwent a second surgery for the progression of a grade II intramedullary astrocytoma (median progression-free survival 26months [8-90])...
September 4, 2017: Neuro-Chirurgie
keyword
keyword
116146
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"