keyword
MENU ▼
Read by QxMD icon Read
search

Reconstruction of the. Spine

keyword
https://www.readbyqxmd.com/read/28432458/is-the-evaluation-of-the-anterior-inferior-iliac-spine-aiis-in-the-ap-pelvis-possible-analysis-of-conventional-x-rays-and-3d-ct-reconstructions
#1
David R Krueger, Markus Windler, Markus Geßlein, Michael Schuetz, Carsten Perka, Joerg H Schroeder
INTRODUCTION: A hypertrophic AIIS has been identified as a cause for extraarticular hip impingement and is classified according to Hetsroni using 3D-CT reconstructions. The role of the conventional AP pelvis X-ray, which is the first standard imaging step for the evaluation of hip pain, has not been investigated yet. MATERIALS AND METHODS: AP pelvis X-rays and 3D-CT reconstructions of patients were evaluated regarding their morphology of the AIIS. The conventional X-rays were categorized into three groups according to the projection of the AIIS: above (A) or below (B) the acetabular sourcil or even exceeding the anterior acetabular rim (C)...
April 21, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28431428/computational-and-in-vitro-experimental-investigation-of-intrathecal-drug-distribution-parametric-study-of-the-effect-of-injection-volume-cerebrospinal-fluid-pulsatility-and-drug-uptake
#2
Kevin M Tangen, Roxanne Leval, Ankit I Mehta, Andreas A Linninger
BACKGROUND: Intrathecal drug delivery is an attractive option to circumvent the blood-brain barrier for pain management through its increased efficacy of pain relief, reduction in adverse side effects, and cost-effectiveness. Unfortunately, there are limited guidelines for physicians to choose infusion or drug pump settings to administer therapeutic doses to specific regions of the spine or the brain. Although empiric trialing of intrathecal drugs is critical to determine the sustained side effects, currently there is no inexpensive in vitro method to guide the selection of spinal drug delivery parameters...
May 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28428078/kinetic-reconstruction-reveals-time-dependent-effects-of-romosozumab-on-bone-formation-and-osteoblast-function-in-vertebral-cancellous-and-cortical-bone-in-cynomolgus-monkeys
#3
Rogely Waite Boyce, Qing-Tian Niu, Michael S Ominsky
Romosozumab, a humanized monoclonal sclerostin antibody under development for the treatment of osteoporosis, has a unique mechanism of action on bone-increasing bone formation and decreasing bone resorption. The effects on bone formation are transient, eliciting a rapid increase in bone formation that attenuates with continued treatment. Although bone formation attenuates, bone mineral density (BMD) continues to increase. To explore potential tissue-level mechanisms that could contribute to a progressive increase in spine BMD, we used kinetic reconstruction techniques to examine the effects of romosozumab on modeling and remodeling units in vertebral cancellous bone from adult cynomolgus monkeys administered romosozumab for 10 and 28weeks...
April 18, 2017: Bone
https://www.readbyqxmd.com/read/28408261/use-of-intraoperative-navigation-for-reconstruction-of-the-c1-lateral-mass-after-resection-of-aneurysmal-bone-cyst
#4
Jennifer Neva, Brandon W Smith, Jacob R Joseph, Paul Park
BACKGROUND: Aneurysmal bone cysts (ABC) are rare blood-filled cystic lesions that are found in the long bones and spine. Here, we present a case of an ABC found in the lateral mass and lamina of C1. Lesions in this area provide a surgical challenge due to its difficulty in access as well as its need for reconstruction. We describe a novel use of intraoperative navigation (ION) to assist in the placement of a C1 lateral mass titanium cage. CASE DESCRIPTION: An 18-year-old female presented with headaches and progressive neck pain...
April 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28399050/veptr-are-we-reducing-respiratory-assistance-requirements
#5
Sarah B Nossov, Evan Curatolo, Robert M Campbell, Oscar H Mayer, Sumeet Garg, Patrick J Cahill
BACKGROUND: The assisted ventilation rating (AVR) indicates the degree of external respiratory support required in children with thoracic insufficiency syndrome (TIS) and early onset scoliosis. For skeletally immature patients with TIS, the vertical expandable prosthetic titanium rib (VEPTR) device can be used to improve lung volume and growth. We hypothesized that patients who underwent early thoracic reconstruction by VEPTR treatment had an improved respiratory status. METHODS: Preoperative and postoperative AVR ratings were prospectively collected in a multicenter study group and compared with determine change after VEPTR treatment...
April 10, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28397296/reconstruction-of-late-esophagus-perforation-after-anterior-cervical-spine-fusion-with-an-adipofascial-anterolateral-thigh-free-flap-a-case-report
#6
Ruben Coelho, Tomas Ekberg, Malin Svensson, Maria Mani, Andres Rodriguez-Lorenzo
Reconstruction of late esophageal perforation usually requires flap surgery to achieve wound healing. However, restoring the continuity between the digestive tract and retropharyngeal space to allow for normal swallowing remains a technical challenge. In this report, we describe the use of a thin and pliable free adipofascial anterolateral thigh (ALT) flap in a 47-year-old tetraplegic man with a history of C5-C6 fracture presented with a large posterior esophagus wall perforation allowing an easier flap insetting for a successful wound closure...
April 11, 2017: Microsurgery
https://www.readbyqxmd.com/read/28388735/a-novel-anterior-trans-pedicular-screw-artificial-vertebral-body-system-for-lower-cervical-spine-fixation-a-finite-element-study
#7
Weidong Wu, Chun Chen, Jinpei Ning, Pei-Dong Sun, Jinyuan Zhang, Changfu Wu, Zhenyu Bi, Jihong Fan, Xianliang Lai, Jun Ouyang
Objective A finite element model was used to compare the biomechanical properties of a novel anterior trans-pedicular screw artificial vertebral body system (AVBS) with a conventional anterior screw plate system (ASPS) for fixation in the lower cervical spine. Methods A model of the intact cervical spine (C3-C7) was established. AVBS or ASPS constructs were implanted between C4 and C6. The models were loaded in three-dimensional motion. The Von Mises stress distribution in the internal fixators was evaluated, as well as the range of motion (ROM) and facet joint force...
April 7, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28361364/spontaneous-and-complete-regeneration-of-a-vertebra-plana-after-surgical-curettage-of-an-eosinophilic-granuloma
#8
Francesca Di Felice, Fabio Zaina, Sabrina Donzelli, Stefano Negrini
PURPOSE: The eosinophilic granuloma is a unifocal or multifocal Langerhans cell histiocytosis characterized by an expanding proliferation of Langerhans cells in bones. Skeletal LCH is a rare condition, and vertebral regeneration in cases of vertebral body collapse is even rarer. We report the case of a girl with spontaneous complete healing. METHODS AD RESULTS: A 3-year-old girl was referred for nighttime back pain, with no fever and no neurologic signs. Within a few days, she developed sudden painful restriction of all spine movements...
March 30, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28357498/computer-aided-analysis-for-optimal-screw-insertion-in-lateral-mass-of-c1-an-anatomical-study
#9
Renate Krassnig, Jakob Andrea Orlandi, Ellen Tackner, Gloria Hohenberger, Paul Puchwein
INTRODUCTION: Motion preserving techniques in C1 ring fractures are increasingly used especially in young patients. Therefore, lateral mass screws are inserted in the first vertebra and connected by a rod. The purpose of this study was to determine safe zones regarding the vertebral arteries and the medulla oblongata for optimal lateral mass screw positioning when fusing the C1-ring. MATERIALS AND METHODS: Images of the cervical spine of 50 patients (64-line CT scanner) were evaluated and virtual screws were positioned in both lateral masses of the first vertebra using 3D-reconstructions of CT scans...
March 29, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28350952/future-advances-in-spine-surgery-the-aospine-north-america-perspective
#10
Michael G Fehlings, Christopher S Ahuja, Thomas Mroz, Wellington Hsu, James Harrop
This focus issue highlights state-of-the-art techniques, equipment, and practices in the modern era of spine surgery while providing a glimpse into the next generation of patient care. A broad range of topics are presented to cover the full spectrum of the field. Degenerative diseases are discussed in a series of 3 articles on (1) pathophysiology, management, and surgical approaches to degenerative cervical myelopathy; (2) novel approaches to degenerative thoracolumbar disease (eg, interspinous process spacers, minimally invasive/endoscopic approaches); and (3) animal models and emerging therapeutics in degenerative disk disease...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28350944/navigation-and-robotics-in-spinal-surgery-where-are-we-now
#11
Samuel C Overley, Samuel K Cho, Ankit I Mehta, Paul M Arnold
Spine surgery has experienced much technological innovation over the past several decades. The field has seen advancements in operative techniques, implants and biologics, and equipment such as computer-assisted navigation and surgical robotics. With the arrival of real-time image guidance and navigation capabilities along with the computing ability to process and reconstruct these data into an interactive three-dimensional spinal "map", so too have the applications of surgical robotic technology. While spinal robotics and navigation represent promising potential for improving modern spinal surgery, it remains paramount to demonstrate its superiority as compared to traditional techniques prior to assimilation of its use amongst surgeons...
March 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28349384/extended-surgery-for-t4-lung-cancer-a-30-years-experience
#12
P G Dartevelle, D Mitilian, E Fadel
T4 non-small cell lung carcinomas (NSCLC) were deemed unresectable. Advances in surgery have challenged this dogma. We describe technical aspects and result on superior vena cava (SVC), carinal, thoracic inlet tumor surgeries, and resection under cardiopulmonary bypass (CPB). SVC reconstruction requires hemodynamic control to reverse SVC clamping cerebral effects and excellent cephalic venous bed patency. Among 50 SVC resections, including 25 carinal pneumonectomies, post-operative mortality rate was 8%. In the N0-N1 group, 5- and 10-year survival rates were 46...
March 27, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28342638/-rationale-and-complications-of-the-anterior-lateral-extrapleural-retroperitoneal-approach-for-unstable-thoracolumbar-fractures-experience-in-86-consecutive-patients
#13
Pedro David Delgado-López, Antonio Rodríguez-Salazar, Vicente Martín-Velasco, Javier Martín-Alonso, José Manuel Castilla-Díez, Ana Galacho-Harriero, Elena Araús-Galdós
OBJECTIVES: To describe the rationale, pros and cons, and complications of the anterior-lateral extrapleural retroperitoneal approach for unstable (TLICS>4) thoracolumbar fractures. PATIENTS AND METHODS: Clinical and radiological data and outcomes from a cohort treated surgically via said approach were retrospectively reviewed. All patients were operated on exclusively by 5 neurosurgeons trained in spine surgery. RESULTS: Between June 1999 and December 2015, 86 patients underwent surgery (median age 42years, most common level: L1)...
March 22, 2017: Neurocirugía
https://www.readbyqxmd.com/read/28332992/clinical-implementation-of-a-model-based-in%C3%A2-vivo-dose-verification-system-for-stereotactic-body-radiation-therapy-volumetric-modulated-arc-therapy-treatments-using-the-electronic-portal-imaging-device
#14
Peter M McCowan, Ganiyu Asuni, Eric Van Uytven, Timothy VanBeek, Boyd M C McCurdy, Shaun K Loewen, Naseer Ahmed, Bashir Bashir, James B Butler, Amitava Chowdhury, Arbind Dubey, Ahmet Leylek, Maged Nashed
PURPOSE: To report findings from an in vivo dosimetry program implemented for all stereotactic body radiation therapy patients over a 31-month period and discuss the value and challenges of utilizing in vivo electronic portal imaging device (EPID) dosimetry clinically. METHODS AND MATERIALS: From December 2013 to July 2016, 117 stereotactic body radiation therapy-volumetric modulated arc therapy patients (100 lung, 15 spine, and 2 liver) underwent 602 EPID-based in vivo dose verification events...
April 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28328602/intracranial-anatomic-landmarks-for-endoscopic-endonasal-transcribriform-approach-to-anterior-skull-base
#15
Pinghua Wu, Huikun Zeng, Ying Guan, Ligen Mo, Danke Su
OBJECTIVES: To help surgeons locating anatomic landmarks when performing endoscopic endonasal transcribriform approach to anterior skull base. METHODS: High-resolution axial computed tomography (CT) images at thickness of 0.6 mm, and reconstructed 0.41-mm thick gapless sagittal and coronal CT images were taken from 123 subjects. Using mimics software, first located elementary points and line: nasal spine, midpoint of posterior hard palate and the line between them; then located measured points right/left posterior and anterior points; measured distances between measured points and from measured points to nasal spine and angles between lines connecting measured points to nasal spine and the basic line...
March 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28323709/single-stage-transpedicular-vertebrectomy-and-expandable-cage-placement-for-treatment-of-unstable-mid-and-lower-lumbar-burst-fractures
#16
Jong-Il Choi, Bum-Joon Kim, Sung-Kon Ha, Sang-Dae Kim, Dong-Jun Lim, Se-Hoon Kim
STUDY DESIGN: Retrospective clinical and radiographic study. OBJECTIVE: To examine the efficacy and safety of vertebrectomy and expandable cage placement by a single-stage posterior approach for unstable mid and lower lumbar burst fractures (below the L3). SUMMARY OF BACKGROUND DATA: Patients with unstable mid and lower lumbar burst fractures require surgical treatment to relieve pain, address paralysis, and stabilize the spine to prevent further segmental deformity...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28323697/generation-and-development-of-paravertebral-ossification-in-cervical-artificial-disk-replacement-a-detailed-analytic-report-using-coronal-reconstruction-ct
#17
Wei Tian, Xiao Han, Bo Liu, Da He, Yanwei Lv, James Yue
STUDY DESIGN: A retrospective follow-up study and review of images in published papers. OBJECTIVE: To determine whether true heterotopic ossification (HO) occurs in artificial disk replacement (ADR); to evaluate the incidence of paravertebral ossification (PO) and its influence on ADR. SUMMARY OF BACKGROUND DATA: HO is typically defined as the abnormal formation of true bone within extraskeletal soft tissues. However, HO in ADR does not fit this definition precisely, as it originates from vertebral body, making it hard to distinguish radiologically from preexisting osteophytes...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28304240/posterior-arch-c-1-screw-technique-a-cadaveric-comparison-study
#18
Marc Moisi, Christian Fisahn, Lara Tkachenko, Shiveindra Jeyamohan, Stephen Reintjes, Peter Grunert, Daniel C Norvell, R Shane Tubbs, Jeni Page, David W Newell, Peter Nora, Rod J Oskouian, Jens Chapman
OBJECTIVE Posterior atlantoaxial stabilization and fusion using C-1 lateral mass screw fixation has become commonly used in the treatment of instability and for reconstructive indications since its introduction by Goel and Laheri in 1994 and modification by Harms in 2001. Placement of such lateral mass screws can be challenging because of the proximity to the spinal cord, vertebral artery, an extensive venous plexus, and the C-2 nerve root, which overlies the designated starting point on the posterior center of the lateral mass...
March 17, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28302367/lateral-thigh-perforator-flap-for-breast-reconstruction-computed-tomographic-angiography-analysis-and-clinical-series
#19
Marco A Maricevich, Michael R Bykowski, M Asher Schusterman, Evan B Katzel, Michael L Gimbel
PURPOSE: Although abdominal-based flaps remain the first choice for autologous breast reconstruction, alternative donor sites are necessary when the abdomen is unavailable. Abdominal donor site suitability is determined, at times, according to deep inferior epigastric perforator (DIEP)-protocol computed tomographic angiography (CTA) results. CTA provides information about the pelvis/upper thigh that can be used to evaluate the suitability of other donor sites. This study aimed to examine the utility of DIEP-protocol CTA in the assessment of a lateral thigh perforator (LTP) flap...
February 20, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28301365/preserving-the-legitimacy-of-board-certification
#20
Michael S Hanemann, Holly C Wall, John A Dean
OBJECTIVES: The aims of this discussion were to inform the medical community about the American Board of Cosmetic Surgery's ongoing attempts in Louisiana to achieve equivalency to American Board of Medical Specialties (ABMS) member boards so that its diplomates may use the term "board certified" in advertising and to ensure public safety by upholding the standards for medical board certification. BACKGROUND: In 2011, Louisiana passed a truth in medical advertising law, which was intended to protect the public by prohibiting the use of the term "board certified" by improperly credentialed physicians...
March 16, 2017: Annals of Plastic Surgery
keyword
keyword
114975
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"