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https://www.readbyqxmd.com/read/27921206/periacetabular-osteotomy-provides-higher-survivorship-than-rim-trimming-for-acetabular-retroversion
#1
Corinne A Zurmühle, Helen Anwander, Christoph E Albers, Markus S Hanke, Simon D Steppacher, Klaus A Siebenrock, Moritz Tannast
BACKGROUND: Acetabular retroversion can cause impaction-type femoroacetabular impingement leading to hip pain and osteoarthritis. It can be treated by anteverting periacetabular osteotomy (PAO) or acetabular rim trimming with refixation of the labrum. There is increasing evidence that acetabular retroversion is a rotational abnormality of the entire hemipelvis and not a focal overgrowth of the anterior acetabular wall, which favors an anteverting PAO. However, it is unknown if this larger procedure would be beneficial in terms of survivorship and Merle d'Aubigné scores in a midterm followup compared with rim trimming...
December 5, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27913248/no-evidence-of-local-adaptation-of-immune-responses-to-gyrodactylus-in-three-spined-stickleback-gasterosteus-aculeatus
#2
Shaun Robertson, Janette E Bradley, Andrew D C MacColl
Parasitism represents one of the most widespread lifestyles in the animal kingdom, with the potential to drive coevolutionary dynamics with their host population. Where hosts and parasites evolve together, we may find local adaptation. As one of the main host defences against infection, there is the potential for the immune response to be adapted to local parasites. In this study, we used the three-spined stickleback and its Gyrodactylus parasites to examine the extent of local adaptation of parasite infection dynamics and the immune response to infection...
November 29, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/27901297/climate-change-alters-the-reproductive-phenology-and-investment-of-a-lacustrine-fish-the-three-spine-stickleback
#3
Rachel A Hovel, Stephanie M Carlson, Thomas P Quinn
High-latitude lakes are particularly sensitive to the effects of global climate change, demonstrating earlier ice breakup, longer ice-free seasons, and increased water temperatures. Such physical changes have implications for diverse life-history traits in taxa across entire lake food webs. Here, we use a five-decade time series from an Alaskan lake to explore effects of climate change on growth and reproduction of a widely distributed lacustrine fish, the three-spine stickleback (Gasterosteus aculeatus). We used multivariate autoregressive state-space (MARSS) models to describe trends in the mean length for multiple size classes and to explore the influence of physical (date of ice breakup, surface water temperature) and biological (density of con- and heterospecifics) factors...
November 30, 2016: Global Change Biology
https://www.readbyqxmd.com/read/27893663/revision-surgery-for-curve-progression-after-implant-removal-following-posterior-fusion-only-at-a-young-age-in-the-treatment-of-congenital-scoliosis-a-case-report
#4
Dong-Gune Chang, Jae Hyuk Yang, Jung-Hee Lee, Jung-Sub Lee, Seung-Woo Suh, Jin-Hyok Kim, Seung-Yeol Oh, Woojin Cho, Jong-Beom Park, Se-Il Suk
RATIONALE: Congenital scoliosis due to a hemivertebra creates a wedge-shaped deformity, which progresses and causes severe spinal deformities as an individual grows. The treatment of congenital scoliosis focuses on early diagnosis and appropriate surgical management before the development of severe deformity. PATIENT CONCERNS: We report the case of a 4-year-old male child with a left thoracolumbar scoliosis of 27° (T10-T12) due to a T11 hemivertebra who was treated by posterior fusion and pedicle screw fixation at the age of 4 years...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27885477/impact-of-old-age-on-patient-report-outcomes-and-cost-utility-for-anterior-cervical-discectomy-and-fusion-surgery-for-degenerative-spine-disease
#5
Silky Chotai, Scott L Parker, J Alex Sielatycki, Ahilan Sivaganesan, Harrison L Kay, Joseph B Wick, Matthew J McGirt, Clinton J Devin
PURPOSE: With growing older population and increasing rates of cervical spinal surgery, it is vital to understand the value of cervical surgery in this population. We set forth to determine the cost utility following anterior cervical decompression and fusion (ACDF) for degenerative disease in older patients. METHODS: Patients undergoing ACDF for degenerative diseases were enrolled into prospective longitudinal registry. Patient-reported outcomes (PROs) were recorded at baseline, 1-year, and 2-year postoperatively...
November 24, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27884941/developing-predictive-models-for-return-to-work-using-the-military-power-performance-and-prevention-mp3-musculoskeletal-injury-risk-algorithm-a-study-protocol-for-an-injury-risk-assessment-programme
#6
Daniel I Rhon, Deydre S Teyhen, Scott W Shaffer, Stephen L Goffar, Kyle Kiesel, Phil P Plisky
BACKGROUND: Musculoskeletal injuries are a primary source of disability in the US Military, and low back pain and lower extremity injuries account for over 44% of limited work days annually. History of prior musculoskeletal injury increases the risk for future injury. This study aims to determine the risk of injury after returning to work from a previous injury. The objective is to identify criteria that can help predict likelihood for future injury or re-injury. METHODS: There will be 480 active duty soldiers recruited from across four medical centres...
November 24, 2016: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/27880842/a-new-morphological-type-of-volvox-from-japanese-large-lakes-and-recent-divergence-of-this-type-and-v-ferrisii-in-two-different-freshwater-habitats
#7
Hisayoshi Nozaki, Noriko Ueki, Nanako Isaka, Tokiko Saigo, Kayoko Yamamoto, Ryo Matsuzaki, Fumio Takahashi, Ken-Ichi Wakabayashi, Masanobu Kawachi
Volvox sect. Volvox is characterized by having unique morphological characteristics, such as thick cytoplasmic bridges between adult somatic cells in the spheroids and spiny zygote walls. Species of this section are found from various freshwater habitats. Recently, three species of Volvox sect. Volvox originating from rice paddies and a marsh were studied taxonomically based on molecular and morphological data of cultured materials. However, taxonomic studies have not been performed on cultured materials of this section originating from large lake water bodies...
2016: PloS One
https://www.readbyqxmd.com/read/27879504/database-research-in-spine-surgery
#8
Arjun S Sebastian
With the introduction of several publicly available national databases to study surgical outcomes, the use of such databases for spine surgery research has increased dramatically. These databases allow researchers to retrospectively examine data from a large sample of patients. This rise in the use of national databases to study surgical outcomes parallels an increasing reliance by administrators, payers, and third-party graders to evaluate surgical quality with the use of large administrative databases. A good understanding of the most commonly utilized databases for spine surgery is important for critical assessment of this growing body of literature...
December 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27867442/the-slowly-enlarging-ventriculus-terminalis
#9
Joel Woodley-Cook, Magdalena Konieczny, Julian Spears
BACKGROUND: A cerebral spinal fluid (CSF) cavity within the conus medullaris has been described by the term ventriculus terminalis (VT) or the fifth ventricle. The finding of a VT on MRI imaging of the lumbar spine is often incidental but may be found in patients with low back pain or neuromuscular deficits. These lesions, when identified, are thought to regress or remain stable in terms of size, although some have been described to enlarge in the presence of post-traumatic meningeal hemorrhages or deformities of the vertebral canal...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27855426/idiopathic-scoliosis-from-psychopathological-and-mind-body-medicine-perspectives
#10
Goran Talić, Ljerka Ostojić, Snježana Novaković Bursać, Tatjana Nožica-Radulović, Đurđica Stevanović-Papić
Idiopathic scoliosis, defined as a three-dimensional spine and trunk deformity, which appears in otherwise healthy subjects, exhibits complex relations with various forms of personal well-being and psychopathology. Most research studies have documented a higher proportion of psychological disturbances (e.g., self-criticism, negative body image, low self-esteem) and mental disorders (e.g., anxiety and depressive disorders, personality disorders) among idiopathc scoliosis patients compared to healthy controls...
December 2016: Psychiatria Danubina
https://www.readbyqxmd.com/read/27853664/return-to-play-after-cervical-spine-injuries-a-consensus-of-opinion
#11
John C France, Michael Karsy, James S Harrop, Andrew T Dailey
Study Design Survey. Objective Sports-related spinal cord injury (SCI) represents a growing proportion of total SCIs but lacks evidence or guidelines to guide clinical decision-making on return to play (RTP). Our objective is to offer the treating physician a consensus analysis of expert opinion regarding RTP that can be incorporated with the unique factors of a case for clinical decision-making. Methods Ten common clinical scenarios involving neurapraxia and stenosis, atlantoaxial injury, subaxial injury, and general cervical spine injury were presented to 25 spine surgeons from level 1 trauma centers for whom spine trauma is a significant component of their practice...
December 2016: Global Spine Journal
https://www.readbyqxmd.com/read/27852504/bilateral-rib-based-distraction-to-the-pelvis-for-the-management-of-congenital-gibbus-deformity-in-the-growing-child-with-myelodysplasia
#12
John T Smith
BACKGROUND: Congenital gibbus deformity of the spine associated with myelodysplasia is a challenging problem in the growing child and is commonly associated with skin breakdown and chronic infection. Surgical solutions including kyphectomy, flap closure of the skin, and early spinal fusion are associated with a high rate of complications and, ultimately, a short trunk due to stoppage of spinal growth. The purpose of this article is to describe our early results in using a rib-based distraction to the pelvis without vertebral resection and fusion to manage this deformity...
January 2016: Spine Deformity
https://www.readbyqxmd.com/read/27852501/longitudinal-pilot-analysis-of-radiation-exposure-during-the-course-of-growing-rod-treatment-for-early-onset-scoliosis
#13
Gregory M Mundis, Jeff B Pawelek, Edward K Nomoto, Michael W Hennessy, Burt Yaszay, Behrooz A Akbarnia
STUDY DESIGN: Retrospective consecutive case series. OBJECTIVES: To estimate the amount of ionizing radiation (IR) exposure in growing rod (GR) surgery for early-onset scoliosis. SUMMARY OF BACKGROUND DATA: There is substantial evidence of the health hazards attributed to IR exposure. However, no studies have estimated the amount of IR exposure in GR surgery. MATERIALS AND METHODS: A consecutive single-center series of GR patients were retrospectively reviewed...
January 2016: Spine Deformity
https://www.readbyqxmd.com/read/27848083/surgical-management-of-lumbar-spinal-stenosis-a-survey-among-norwegian-spine-surgeons
#14
Clemens Weber, Greger Lønne, Vidar Rao, Asgeir S Jakola, Ole Solheim, Ulf Nerland, Ivar Rossvoll, Øystein P Nygaard, Wilco C Peul, Sasha Gulati
BACKGROUND: Symptomatic lumbar spinal stenosis (LSS) is the most common reason for lumbar surgery in the elderly. There is growing evidence that decompressive surgery offers an advantage over non-surgical management for selected patients with persistent severe symptoms. Based on treatment traditions, open laminectomy has been the gold standard surgical treatment, but various other surgical and non-surgical treatments for LSS are widely used in clinical practice. Therefore, we conducted a survey study to capture potential diversities in surgeons' management of LSS in Norway...
November 15, 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/27834626/bilateral-c-1-lateral-mass-reconstruction-following-radical-resection-of-a-giant-osteoblastoma-of-the-atlas-case-report
#15
Iulia Peciu-Florianu, Gopalakrishnan Chittur Viswanathan, Juan Barges-Coll, Gabriel A Castillo-Velázquez, Pierre-Yves Zambelli, John M Duff
Osteoblastoma is a rare, benign, osteoid-producing, and slow-growing primary bone tumor, typically arising in long bones or in the spine, with a slight male predominance. This report describes the surgical treatment of a giant C-1 (atlantal) osteoblastoma diagnosed in a young male patient with neurofibromatosis Type 1. The authors describe the clinical presentation, the surgical procedure for complete excision and stabilization, and results as of the 1-year follow-up. They detail a bilateral occipitoaxial spinal interarticular stabilization technique that they used after complete tumor excision...
November 11, 2016: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/27830290/a-new-armored-archosauriform-diapsida-archosauromorpha-from-the-marine-middle-triassic-of-china-with-implications-for-the-diverse-life-styles-of-archosauriforms-prior-to-the-diversification-of-archosauria
#16
Chun Li, Xiao-Chun Wu, Li-Jun Zhao, Sterling J Nesbitt, Michelle R Stocker, Li-Ting Wang
Reptiles have a long history of transitioning from terrestrial to semi-aquatic or aquatic environments that stretches back at least 250 million years. Within Archosauria, both living crocodylians and birds have semi-aquatic members. Closer to the root of Archosauria and within the closest relatives of the clade, there is a growing body of evidence that early members of those clades had a semi-aquatic lifestyle. However, the morphological adaptations to a semi-aquatic environment remain equivocal in most cases...
December 2016: Die Naturwissenschaften
https://www.readbyqxmd.com/read/27824236/hump-height-in-idiopathic-scoliosis-measured-using-a-humpmeter-in-growing-subjects-the-relationship-between-the-hump-height-and-the-cobb-angle-and-the-effect-of-age-on-the-hump-height
#17
Claudio Ferraro, Andrea Venturin, Marco Ferraro, Daniele Fabris Monterumici, Stefano Masiero
BACKGROUND: The comparison between Cobb angle and hump height measured using a humpmeter in idiopathic scoliosis have produced contradictory findings concerning the association between the two variables in growing subjects. AIM: To analyze the relationship between the hump height and the Cobb angle and the effect of age on the first. DESIGN: Cross-sectional, descriptive analytical study. SETTING: A tertiary university hospital...
November 8, 2016: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27814888/dynamic-contrast-enhanced-magnetic-resonance-angiography-for-the-localization-of-spinal-dural-arteriovenous-fistulas-at-3t
#18
G Zhou, M H Li, C Lu, Y L Yin, Y Q Zhu, X E Wei, H T Lu, Q Q Zheng, W W Gao
OBJECTIVE: This study was undertaken to evaluate the accuracy of dynamic contrast-enhanced magnetic resonance angiography (DCE-MRA) in the precise location and demonstration of fistulous points in spinal dural arteriovenous fistulas (SDAVFs). METHODS: Fifteen patients (14 men, 1 woman; age range: 40-78 years; mean: 55.5 years) harboring SDAVF who underwent preoperative DCE-MRA and spinal digital subtraction angiography (DSA) between January 2012 and January 2015 were evaluated retrospectively...
November 1, 2016: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/27805557/-retroperitoneal-tumor-neurofibroma
#19
Paul Eduardo Lada, Daniela Marriot, Carlos Sanchez Tasonne, Martin Sanchez, Fabian Caballero, Martin Massa
The neurofibroma is a benign tumor that grows from the sheath of the peripheral nerves, which is often localized on superficial tissues, especially in isolated forms. The neurofibromas can be of two types, localized or diffuse, the last one closely related to Von Recklinghausen disease or NF-1. We described a 37 years old male e patient, 37 years without symptoms, and the computed tomography scan (CT), and magnetic resonance imaging showed a tumor in proximity to the right kidney, the psoas muscle, the spine and compressing the cava vein, but cannot be accurately determinate the invasion of these structures...
2016: Revista de la Facultad de Ciencias Médicas
https://www.readbyqxmd.com/read/27798426/advances-in-growing-rods-treatment-for-early-onset-scoliosis
#20
Senol Bekmez, Ozgur Dede, Muharrem Yazici
PURPOSE OF REVIEW: The goal of treatment in early onset scoliosis is to correct the deformity while allowing the thoracic growth for optimal cardiopulmonary functions. Growing rods treatment is a distraction-based, growth-friendly method that is commonly used in treatment of early onset scoliosis with its specific indications. Magnetically controlled growing rods (MCGR) method has been introduced to avoid morbidity of recurrent lengthening procedures. In this review, recent developments in traditional growing rods and MCGR are summarized...
October 27, 2016: Current Opinion in Pediatrics
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