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Reconstruction of the. Spine

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https://www.readbyqxmd.com/read/28632547/a-less-invasive-retroperitoneal-lumbar-approach-animal-feasibility-study-and-primary-clinical-study
#1
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/28632204/successful-pharmacotherapy-for-the-treatment-of-severe-feeding-aversion-with-mechanistic-insights-from-cross-species-neuronal-remodeling
#2
W G Sharp, A G Allen, K H Stubbs, K K Criado, R Sanders, C E McCracken, R G Parsons, L Scahill, S L Gourley
Pediatric feeding disorders affect up to 5% of children, causing severe food intake problems that can result in serious medical and developmental outcomes. Behavioral intervention (BI) is effective in extinguishing feeding aversions, and also expert-dependent, time/labor-intensive and not well understood at a neurobiological level. Here we first conducted a double-blind, placebo-controlled trial comparing BI with BI plus d-cycloserine (DCS). DCS is a partial N-methyl-d-aspartate (NMDA) receptor agonist shown to augment extinction therapies in multiple anxiety disorders...
June 20, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28630729/acetabular-rim-length-an-anatomical-study-to-determine-reasonable-graft-sizes-for-labral-reconstruction
#3
Michael R Karns, Sunny H Patel, Jensen Kolaczko, Raymond W Liu, Richard C Mather, Brian J White, Shane J Nho, Michael J Salata
The purpose of this article is to determine normative values for the length of the acetabular rim and detect differences between gender, age, ethnicity, height and leg length. Six measurements were taken on the acetabular rim of 143 cadaveric skeleton specimens (286 acetabula) using a coordinate-measuring device: circumferential (excluding acetabular notch), anterior inferior iliac spine (AIIS)-anterior, AIIS-posterior, 12-3 o'clock, 12-9 o'clock and 11-5 o'clock. Museum specimen height data and leg length data from a previous study were recorded for 109 of 143 specimens...
January 2017: Journal of Hip Preservation Surgery
https://www.readbyqxmd.com/read/28622931/three-dimensional-morphometrics-of-thoracic-vertebrae-in-neandertals-and-the-fossil-evidence-from-el-sidr%C3%A3-n-asturias-northern-spain
#4
Markus Bastir, Daniel García Martínez, Luis Rios, Antonio Higuero, Alon Barash, Sandra Martelli, Antonio García Tabernero, Almudena Estalrrich, Rosa Huguet, Marco de la Rasilla, Antonio Rosas
Well preserved thoracic vertebrae of Neandertals are rare. However, such fossils are important as their three-dimensional (3D) spatial configuration can contribute to the understanding of the size and shape of the thoracic spine and the entire thorax. This is because the vertebral body and transverse processes provide the articulation and attachment sites for the ribs. Dorsal orientation of the transverse processes relative to the vertebral body also rotates the attached ribs in a way that could affect thorax width...
July 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/28622901/tridimensional-analysis-of-rotatory-subluxation-and-sagittal-spinopelvic-alignment-in-the-setting-of-adult-spinal-deformity
#5
Emmanuelle Ferrero, Renaud Lafage, Bassel G Diebo, Vincent Challier, Brice Illharreborde, Frank Schwab, Wafa Skalli, Pierre Guigui, Virginie Lafage
STUDY DESIGN: Retrospective single-center. OBJECTIVE: To investigate rotatory subluxation (RS) in adult spinal deformity (ASD) with three-dimensional (3D) stereoradiographic images and analyze relationships between RS, transverse plane parameters, spinopelvic parameters, and clinical outcomes. BACKGROUND: Recent research has demonstrated that sagittal plane malalignment and listhesis correlate with ASD patient-reported outcomes. However, there is still a lack of knowledge regarding the clinical impact of 3D evaluation and rotatory subluxation...
July 2017: Spine Deformity
https://www.readbyqxmd.com/read/28621617/intrathoracic-meningocele-associated-with-neurofibromatosis-type-1-and-a-novel-technique-for-surgical-repair-case-report
#6
Paramita Das, Tarini Goyal, Matthew A Hunt
Neurofibromatosis Type 1 (NF1) is a neurocutaneous disorder that can have associated spinal abnormalities related to both bone and dural dysplasia. Thoracic meningoceles are one spine anomaly associated with NF1, although they are a fairly uncommon pathology. Surgical techniques to treat these meningoceles, usually undertaken only when the patient is symptomatic, are targeted at decreasing the size of the protrusion and improving lung capacity. Surgical interventions discussed in the literature include shunting the pseudomeningocele, primary repair with laminectomy, thoracoscopic plication, and reinforcement of the closure with cement, muscle, or fascia...
June 16, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28621192/-reconstruction-of-the-inguinal-ligament-with-fascia-lata-sling-first-reported-case-in-hungary
#7
Gábor Bognár, Loránd Barabás, Enikő Tóth, Andrea Schöller, Gábor István
INTRODUCTION: A technique of reconstructing the inguinal ligament using pedicled fascia lata flap is described. PRESENTATION OF CASE: A 66-year-old woman was referred with massive incarcerated left inguinal hernia, following acute surgery on a femoral vein leasion and numerous attempts at repair and subsequent recurrences. There was complete absence of the left inguinal ligament. The inguinal ligament was reconstructed using a strip of fascia lata, pedicled on the anterior superior iliac spine...
June 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28612249/autologous-structural-iliac-bone-grafts-in-reconstructions-of-short-bone-defects-in-the-hand-and-foot-after-primary-bone-tumor-resections-a-single-institution-retrospective-study
#8
J Lesensky, K Nemec, I Kofranek, Z Matejovsky
The use of structural autografts from the iliac crest for reconstruction of bony defects in the hand and foot was described by Wilson and Lance in 1965. However, very few series of this technique are published and long-term results are unknown. We present a single-institution series of 23 patients with a mean follow-up of 92 months. We also describe a novel modification of this technique using the anterior superior iliac spine for reconstruction of the adjacent joint. Failure rate was 13% at mean of 17.3 months...
June 13, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28607854/safety-of-immediate-posterior-trunk-soft-tissue-reconstruction-in-older-adults
#9
Nicholas A Calotta, Devin Coon, Justin M Sacks
BACKGROUND: Older patients, especially those older than 65 years, are accounting for an ever-increasing share of hospital costs, especially surgical procedures. Studies regarding the safety of surgery in these patients have been widespread in the past decade. Despite these efforts, there is a paucity of information regarding the safety of reconstruction following spinal surgery in older patients. METHODS: We conducted a retrospective cohort study of patients undergoing soft-tissue reconstruction of the posterior trunk after oncologic spine surgery...
May 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28602981/three-dimensional-translations-following-posterior-three-column-spinal-osteotomies-for-the-correction-of-severe-and-stiff-kyphoscoliosis
#10
Xueshi Li, Zifang Huang, Yaolong Deng, Hengwei Fan, Wenyuan Sui, Chongwen Wang, Junlin Yang
BACKGROUND CONTEXT: Posterior three-column spinal osteotomies were shown to be effective to treat severe and stiff kyphoscoliosis. Translations at the site of osteotomy after deformity correction were commonly seen intraoperatively, which might cause potential neurologic deficits. However, this phenomenon was not thoroughly discussed in the current literature. PURPOSE: This study was to evaluate the three-dimensional translations at the three-column osteotomy site and their effects on neurologic outcome in the surgical correction of severe and stiff kyphoscoliosis...
June 7, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28593635/multichannel-compressed-sensing-mr-image-reconstruction-using-statistically-optimized-nonlinear-diffusion
#11
Ajin Joy, Joseph Suresh Paul
PURPOSE: Eliminate the need for parametric tuning in total variation (TV) based multichannel compressed-sensing image reconstruction using statistically optimized nonlinear diffusion without compromising image quality. THEORY AND METHODS: Nonlinear diffusion controls the denoising process using a contrast parameter that separates the gradients corresponding to noise and true edges in the image. This parameter is statistically estimated from the variance of combined image gradient to yield minimum steady-state reconstruction error...
June 7, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28590384/thoracic-idiopathic-scoliosis-severity-is-highly-correlated-with-3d-measures-of-thoracic-kyphosis
#12
T Barrett Sullivan, Fredrick G Reighard, Emily J Osborn, Kevin C Parvaresh, Peter O Newton
BACKGROUND: Loss of thoracic kyphosis has been associated with thoracic idiopathic scoliosis. Modern 3-dimensional (3D) imaging systems allow more accurate characterization of the scoliotic deformity than traditional radiographs. In this study, we utilized 3D calculations to characterize the association between increasing scoliosis severity and changes in the sagittal and axial planes. METHODS: Patients evaluated in a scoliosis clinic and determined to have either a normal spine or idiopathic scoliosis were included in the analysis...
June 7, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28585249/closure-of-the-vertebral-canal-in-human-embryos-and-fetuses
#13
Hayelom K Mekonen, Jill P J M Hikspoors, Greet Mommen, Nutmethee Kruepunga, S Eleonore Köhler, Wouter H Lamers
The vertebral column is the paradigm of the metameric architecture of the vertebrate body. Because the number of somites is a convenient parameter to stage early human embryos, we explored whether the closure of the vertebral canal could be used similarly for staging embryos between 7 and 10 weeks of development. Human embryos (5-10 weeks of development) were visualized using Amira 3D(®) reconstruction and Cinema 4D(®) remodelling software. Vertebral bodies were identifiable as loose mesenchymal structures between the dense mesenchymal intervertebral discs up to 6 weeks and then differentiated into cartilaginous structures in the 7th week...
June 5, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28580053/persistent-proatlas-with-additional-segmentation-of-the-craniovertebral-junction-the-tsuang-goehmann-malformation
#14
Holger Spittank, Ulrich Goehmann, Hendrik Hage, Robby Sacher
Case study description and analysis of a complex craniovertebral dysplasia in an 8-year-old male patient, in which conventional cervical spine radiographs demonstrated a regularly differentiated occipital base, as well as the presence of two lateral masses of the proatlas vertebra and two lateral masses of the atlas vertebra. Further assessment included computed tomography of the occipital base and the upper cervical spine as well as three-dimensional reconstruction. Malsegmentation of the fourth occipital vertebra can result in various anomalies that are known as 'manifestation of the proatlas'...
October 2016: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/28578109/reconstruction-of-the-thoracic-spine-using-a-personalized-3d-printed-vertebral-body-in-an-adolescent-with-a-t9-primary-bone-tumour-case-report
#15
Wen Jie Choy, Ralph J Mobbs, Ben Wilcox, Steven Phan, Kevin Phan, Chester E Sutterlin
BACKGROUND: Neurosurgery and spine surgery has the potential to benefit from the use of three-dimensional printing (3DP) technology due to complex anatomical considerations and the delicate nature of surrounding structures. We report a procedure which utilises a 3D printed titanium T9 vertebral body implant post T9 vertebrectomy for a primary bone tumour. CASE DESCRIPTION: A 14-year-old female presented with progressive kyphoscoliosis, and a pathological fracture of the T9 vertebra with sagittal and coronal deformity due to a destructive primary bone tumour...
May 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28573824/bone-cement-cardiac-and-pulmonary-embolism
#16
Tomás F Cianciulli, Diego E Mc Loughlin, Luis A Morita, María C Saccheri, Jorge A Lax
This case describes a complication of bone cement use. A 65-year-old male patient with back spine trauma caused by a fall, underwent a percutaneous vertebroplasty. Five years later, he consulted for palpitations, and the electrocardiogram showed supraventricular arrhythmia. A transthoracic two-dimensional echocardiography showed a hyperechogenic linear structure of 7 cm length, running from the lateral wall of the right ventricle to the right atrium through the tricuspid valve. This foreign body, which was suspicious for bone cement embolism, appeared rigid and was attached at the lateral wall of the right ventricle, with its proximal end free in the right atrium...
June 1, 2017: Echocardiography
https://www.readbyqxmd.com/read/28570410/nasal-soft-tissue-change-following-bimaxillary-orthognathic-surgery
#17
Hye-In Jeong, Ho-Sung Lee, Young-Soo Jung, Hyung-Sik Park, Hwi-Dong Jung
OBJECTIVE: The purpose of this study is to identify the correlation between maxillary movement and nasal soft tissue changes on three-dimensional reconstructed cone beam computed tomography (CBCT) images after Le Fort I osteotomy. MATERIALS AND METHODS: The authors also investigate the long-term change of alar base width (ABW) to determine the effect of cinch suture. The authors retrospectively studied 52 subjects (14 males and 38 females) who were treated by bimaxillary orthognathic surgery including Le Fort I osteotomy and mandibular ramus surgery...
May 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28564663/current-treatment-of-metastatic-spine-tumors-surgery-and-stereotactic-radiosurgery
#18
Jared S Fridley, Jaroslaw T Hepel, Adetokunbo A Oyelese
There has been significant progress and innovation in the treatment of patients with metastatic spinal tumors over the last two to three decades that has impacted our ability to provide individualized care that improves a patient's quality of life and degree of neurologic impairment. Advances in surgical techniques and radiation delivery modalities have dramatically improved our ability to decrease local tumor recurrence rates, improve pain control, and provide more durable spinal stability. Modern day spine tumor resection and reconstruction techniques have been shown to improve and prolong patients' ability to ambulate, maintain continence, and reduce the need for pain medications...
June 1, 2017: Rhode Island Medical Journal
https://www.readbyqxmd.com/read/28554714/analysis-of-shoulder-abduction-by-dynamic-shoulder-radiograph-following-suprascapular-nerve-repair-in-brachial-plexus-injury
#19
Takashi Shimoe, Kazuteru Doi, Tomas Madura, Kannan K Kumar, Tristram D Montales, Yasunori Hattori, Sotetsu Sakamoto, Kiminori Yukata, Munehito Yoshida
BACKGROUND: Suprascapular nerve repair is a widely-prioritized procedure for shoulder reconstruction following brachial plexus injury. Although this procedure only reconstructs glenohumeral joint motion, the standard clinical assessment of shoulder function also includes the scapulothoracic joint contribution. The purpose of this preliminary study was to develop an objective method to accurately analyze shoulder abduction following suprascapular nerve repair in brachial plexus injury patients...
May 26, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28546099/accuracy-of-pedicle-screw-placement-in-posterior-lumbosacral-instrumentation-by-computer-tomography-evaluation-a-multi-centric-retrospective-clinical-study
#20
Tianming Yu, Shuang Mi, Yuansong He, Zhenwu Zhang, Wenjie Dai, Jiqing Tian, Zhenghua Hong, Shunwu Fan, Fengdong Zhao
BACKGROUND: Pedicle screw misplacement rates are relatively high with fluoroscopically guided techniques. However, breach rates in the 5th lumbar and the 1st sacral spines in conventional operations have not been specifically concerned because of their broad cross sections. It's a retrospective study to evaluate the accuracy and safety of pedicle screw placement in posterior lumbosacral instrumentation under CT scan with reconstruction. MATERIALS AND METHODS: 401 patients were evaluated under CT scan with reconstruction in 3 hospitals by 2 professional observers after posterior lumbosacral instrumentation including 152 3rd lumbar spines (L3), 219 4th lumbar spines (L4), 270 5th lumbar spines (L5) and 95 1st sacral spines (S1) with screws placed...
May 22, 2017: International Journal of Surgery
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