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https://www.readbyqxmd.com/read/29279722/current-diagnostic-procedures-for-diagnosing-vertigo-and-dizziness
#1
REVIEW
Leif Erik Walther
Vertigo is a multisensory syndrome that otolaryngologists are confronted with every day. With regard to the complex functions of the sense of orientation, vertigo is considered today as a disorder of the sense of direction, a disturbed spatial perception of the body. Beside the frequent classical syndromes for which vertigo is the leading symptom (e.g. positional vertigo, vestibular neuritis, Menière's disease), vertigo may occur as main or accompanying symptom of a multitude of ENT-related diseases involving the inner ear...
2017: GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery
https://www.readbyqxmd.com/read/29227373/incidence-of-meniscal-entrapment-and-associated-knee-injuries-in-tibial-spine-avulsions
#2
Jason T Rhodes, Peter C Cannamela, Aristides I Cruz, Meredith Mayo, Alexandra C Styhl, Connor G Richmond, Theodore J Ganley, Kevin G Shea
BACKGROUND: Tibial spine avulsions (TSA) have historically been treated as isolated injuries. Data on associated injuries are limited with existing literature reporting wide ranging incidences. The purpose of this multicenter study was to (1) describe the incidence of meniscal entrapment and associated knee injuries in TSA and to (2) compare surgical and magnetic resonance image (MRI) findings for these injuries. Our hypothesis is that tibial spine injuries are not usually isolated injuries, and other meniscal, ligament, and cartilage injuries may be present...
December 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29220207/mr-imaging-of-muscle-trauma-anatomy-biomechanics-pathophysiology-and-imaging-appearance
#3
Dyan V Flores, Catalina Mejía Gómez, Mauricio Estrada-Castrillón, Edward Smitaman, Mini N Pathria
Muscle is an important component of the muscle-tendon-bone unit, driving skeletal motion through contractions that alter the length of the muscle. The muscle and myotendinous junction (MTJ) are most commonly injured in the young adult, as a result of indirect mechanisms such as overuse or stretching, direct impact (penetrating or nonpenetrating), or dysfunction of the supporting connective tissues. Magnetic resonance (MR) imaging is widely used for assessment of muscle injuries. This review illustrates the MR imaging appearance of a broad spectrum of acute, subacute, and chronic traumatic lesions of muscle, highlighting the pathophysiology, biomechanics, and anatomic considerations underlying these lesions...
December 8, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29157219/a-new-multiple-trauma-model-of-the-mouse
#4
Stefanie Fitschen-Oestern, Sebastian Lippross, Tim Klueter, Matthias Weuster, Deike Varoga, Mersedeh Tohidnezhad, Thomas Pufe, Stefan Rose-John, Hagen Andruszkow, Frank Hildebrand, Nadine Steubesand, Andreas Seekamp, Claudia Neunaber
BACKGROUND: Blunt trauma is the most frequent mechanism of injury in multiple trauma, commonly resulting from road traffic collisions or falls. Two of the most frequent injuries in patients with multiple trauma are chest trauma and extremity fracture. Several trauma mouse models combine chest trauma and head injury, but no trauma mouse model to date includes the combination of long bone fractures and chest trauma. Outcome is essentially determined by the combination of these injuries...
November 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29150301/is-subchondral-bone-cyst-formation-in-non-load-bearing-region-of-osteoarthritic-knee-a-vascular-problem
#5
Pok Man Boris Chan, Chunyi Wen, Wai Ching Yang, Chunhoi Yan, KwongYuen Chiu
Subchondral bone cyst is common in the progressive knee osteoarthritis yet its underlying mechanism remains unclear. In addition to the existing theories such as synovial fluid influx and mechanical contusion, we identified the potential link between vascular pathology and osteoarthritic bone pathologies including cystic lesion formation, particularly in the non-load-bearing region. This new hypothesis for SBC formation in non-load-bearing region for knee, which cannot be explained by the existing theories, will provide us a new angle to understand the pathomechanism and pathophysiology of subchondral bone disturbance in osteoarthritis in addition to the classical biomechanical overloading theories...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29143065/-complex-joint-reconstruction-and-joint-transplantation-with-the-flocsat-concept-planning-and-surgical-implementation
#6
REVIEW
C Krettek, J-D Clausen, C Neunaber
Cartilage defects in adult patients are so far incurable. Fresh osteochondral allograft (OCA) transplantation is based on the insertion of mature, living, mechanically sound hyaline cartilage into an osteochondral defect where it undergoes osseointegration. Intact hyaline cartilage of OCA does not cause immune reactions in the recipient. Many reports show that small OCA have good osseointegration and show good long-term results. These observations have been incorporated into the development of the fresh large (> 10 cm(2)) osteochondral shell allograft transplantation (FLOCSAT) concept, which is based on the following principles: 1) the thickness of the osseous layer should be kept as thin as possible (target < 6-8 mm) so that the transplant remains stable and fixable...
November 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29125102/role-of-methylprednisolone-in-treatment-of-spinal-cord-injured-with-bone-marrow-mesenchymal-stem-cells-transplantation-in-rats-and-its-effect-on-the-expressions-of-tumor-necrosis-factor-%C3%AE-and-interleukin-1%C3%AE
#7
Xin-Ming Yang, Yao-Yu Cheng, Zhen-Liang Zhang, Cong Kang
Objective To investigate the role of methylprednisolone (MP) in treatment of spinal cord injured (SCI) with bone marrow mesenchymal stem cells (BMSCs) transplantation in rats and its effect on the expressions of tumor necrosis factor-α(TNF-α) and interleukin-1β(IL-1β) at the local tissues.Methods Forty male Sprague-Dawley(SD) rats were used to establish the models of SCI according to the modified Allen's contusion method and then divided into four groups (n=10 in each group) by using random numbers table:MP group,BMSCs group,BMSCs+MP group,and control group...
October 30, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29114294/evisceration-of-brain-an-unusual-case-report-of-bear-mauling-from-eastern-india
#8
Bikash Ranjan Behera, Sanjib Mishra, Deepak Das, Rajesh Gantayat
Even if human beings are the most intelligent among all living beings, they are still not immune to attack from wild animals. Human contact with bears has become more frequent as their habitat is being endangered by frequent deforestation. The sloth bear is one of the few bear species found in India, especially in the hilly areas of Southern Odisha. Bears are highly intelligent and omnivorous animals with long claws coupled with powerful shoulder. Here, we describe the tale of a poor tribal male's encounter with a sloth bear resulting in critical injuries to face, scalp, skull bone, with brain matter fungating-out of the skull...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29081707/analysis-of-the-pattern-and-mechanism-of-elbow-injuries-related-to-armbar-type-armlocks-in-jiu-jitsu-fighters
#9
Thiago Bernardo Carvalho DE Almeida, Eiffel Tsuyoshi Dobashi, Alexandre Yukio Nishimi, Eduardo Bernardo DE Almeida, Luciano Pascarelli, Luciano Miller Reis Rodrigues
OBJECTIVE: The objective of this study was to analyze elbow injuries and their probable mechanism in Jiu-Jitsu fighters resulting from the armbar-type armlock. METHODS: We evaluated 5 high-performance Jiu-Jitsu fighters from the Gracie Elite gym who were injured during a tournament. All were healthy males with a mean age of 28.8 years. The right arm was involved in three patients (60%). The athletes were followed for approximately 4.6 months, and pain was present in all cases...
September 2017: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/29068322/adult-skin-derived-precursor-schwann-cell-grafts-form-growths-in-the-injured-spinal-cord-of-fischer-rats
#10
Zacnicte May, Ranjan Kumar, Tobias Führmann, Roger Tam, Katarina Vulic, Juan Forero, Ana M Lucas-Osma, Keith Fenrich, Peggy Assinck, Michael J Lee, Aaron Moulson, Molly S Shoichet, Wolfram Tetzlaff, Jeff Biernaskie, Karim Fouad
In this study, GFP+ skin-derived precursor Schwann cells (SKP-SCs) from adult rats were grafted into the injured spinal cord of immunosuppressed rats. Our goal was to improve grafted cell survival in the injured spinal cord, which is typically low. Cells were grafted in hyaluronan-methylcellulose hydrogel (HAMC) or hyaluronan-methylcellulose modified with laminin- and fibronectin-derived peptide sequences (eHAMC). The criteria for selection of hyaluronan was for its shear-thinning properties, making the hydrogel easy to inject, methylcellulose for its inverse thermal gelation, helping to keep grafted cells in situ, and fibronectin and laminin to improve cell attachment and, thus, prevent cell death due to dissociation from substrate molecules (i...
October 25, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29054133/effects-of-intrathecal-injection-of-the-conditioned-medium-of-bone-marrow-stromal-cells-on-spinal-cord-injury-of-rats
#11
Kenji Kanekiyo, Tamami Wakabayashi, Norihiko Nakano, Yoshihiro Yamada, Masahiro Tamachi, Yoshihisa Suzuki, Masanori Fukushima, Fukuki Saito, Seiya Abe, Chihiro Tsukagoshi, Chimi Miyamoto, Chizuka Ide
Bone marrow stromal cells (BMSCs) have been studied for the treatment of spinal cord injury (SCI). In previous studies, we showed that the transplantation of BMSCs, even though they disappeared from the host spinal cord within 1-3 weeks after transplantation, improved locomotor behaviors and promoted axonal regeneration. This result led to the hypothesis that BMSCs might release some neurotrophic factors effective for the treatment of SCI. The present study examined this by injecting the conditioned medium (CM) of BMSCs to treat SCI in rats...
October 20, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29031245/decrease-in-cavity-size-and-oligodendrocyte-cell-death-using-neurosphere-derived-oligodendrocyte-like-cells-in-spinal-cord-contusion-model
#12
Hojjat Allah Abbaszadeh, Taki Tiraihi, Yousef Sadeghi, Ali Reza Delshad, Majid Sadeghizadeh, Taher Taheri, Ali Noori-Zadeh
Background: Oligodendrocyte cell death is among the important features of spinal cord injury, which appears within 15 min and occurs intensely for 4 h after injury, in the rat spinal contusion model. Accordingly, the number of oligodendrocytes is progressively reduced within 24 h after injury. Administration of oligodendrocyte-like cells (OLCs) into the lesion area is one of the approaches to counterbalance this condition. Methods: Bone marrow stromal cells were transdifferentiated into neurospheres and then into neural stem cells and later were differentiated into OLCs using triiodothyronine and transplanted into the spinal cord contusion rats...
October 15, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28978258/hypovolemic-shock-caused-by-delayed-onset-superior-gluteal-artery-rupture-successfully-treated-with-arteriographic-embolization
#13
YongHun Kim, WooSurng Lee
INTRODUCTION: Rupture of the superior gluteal artery (SGA) is usually associated with pelvic bone fractures and acetabular fractures secondary to blunt trauma. However, despite recent advances in technologies and tools, rupture of the SGA remains a challenging problem because it is difficult to manage and is frequently associated with significantly high mortality and morbidity. PATIENTS AND METHODS: We present a case of an 82-year-old man, who presented to our emergency department after a cultivator turnover accident and who showed stable initial vital signs and manifested only as blunt buttock traumatic contusion without any pelvic bone or acetabular fracture, which resulted in delayed massive bleeding from the SGA on eight days after trauma...
October 4, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/28917584/pneumatoceles-in-pediatric-blunt-trauma-common-and-benign
#14
Lindsey B Armstrong, David P Mooney
INTRODUCTION: Traumatic pneumatoceles are reported to be rare in children and to have an uncertain clinical significance. We report a single institution series of traumatic pneumatoceles to better define their frequency and clinical significance. METHODS: After obtaining approval from the IRB, data were extracted from the trauma registry of a level 1 pediatric trauma center on children diagnosed with a pulmonary contusion (International Classification of Diseases-9th edition diagnosis codes: 861...
August 7, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28910815/the-outcome-and-patterns-of-traumatic-brain-injury-in-the-paediatric-population-of-a-developing-country-secondary-to-tv-trolley-tip-over
#15
Muhammad Waqas, Gohar Javed, Karim Rizwan Nathani, Badar Ujjan, Syed A Quadri, Muhammad Zubair Tahir
BACKGROUND: Television (TV) trolley tip-over incidences are common and can cause significant morbidity and mortality in children. This study was aimed at analyzing the pattern and outcomes of head injuries resulting from TV trolley tip-over. METHOD: We conducted a medical chart review of children with TV trolley tip-over head injuries from January 2009 to April 2016. We collected data on demographics, the mechanism of injury, clinical and radiological features of the injury, and outcomes...
September 15, 2017: Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28901182/effects-of-bone-marrow-derived-msc-transplantation-on-functional-recovery-in-a-rat-model-of-spinal-cord-injury-comparisons-of-transplant-locations-and-cell-concentrations
#16
Jessica J Matyas, Andrew N Stewart, Alison Goldsmith, Zhenhong Nan, Reid L Skeel, Julien Rossignol, Gary L Dunbar
Spinal cord injury (SCI) is a widely disabling condition, constraining those affected by it to wheelchairs and requiring intense daily care and assistance. Cell replacement therapies, targeting regeneration of cells in the injured cord, are currently gaining momentum in the field of SCI research. Previous studies indicate that mesenchymal stem cells (MSCs) can reduce functional deficits through immunomodulation and production of trophic factors in a variety of neurological disorders. The present study assessed the efficacy of transplanted bone marrow-derived MSCs at different concentrations and locations for promoting functional recovery following SCI...
August 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28884559/artificial-neural-network-predicts-hemorrhagic-contusions-following-decompressive-craniotomy-in-traumatic-brain-injury
#17
Jian-Li Wang, Guo-Liang Jin, Zi-Gang Yuan
OBJECTIVE: This study aimed to explore relevant factors of hemorrhagic contusions following decompressive craniotomy (DC) in traumatic brain injury (TBI), and create an artificial neural network (ANN) prediction model of the risk factors of hemorrhagic contusions. METHODS: This study analyzed 425 patients with TBI who underwent DC in the Neurosurgery Department of Shaoxing People's Hospital between 2009 and 2014. Patients were divided into two groups according to the first postoperative CT scans: hemorrhage group and non-hemorrhage group...
September 7, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28863106/decompressive-craniectomy-with-bifrontal-coronal-incision-in-the-management-of-fronto-temporal-contusion-and-laceration-for-early-cranioplasty
#18
Zhong Wang, Ning Su, Ri-Le Wu, Yi-Song Zhang, Xiao-Jun Zhang, Jian-Jun Qi, Wei-Ping Zhao, Zhong Zhang, Jun-Qing Wang
The present study aims to explore the effectiveness of decompressive craniectomy with bifrontal coronal incision in the management of severe contusion and laceration of bilateral fronto-temporal lobes, as well as the outcomes of early cranioplasty. The authors performed the bifrontal decompressive craniectomy on 56 patients with contusion and laceration of bilateral frontal and temporal lobes, and their follow-up treatment outcomes were tracked within 6 months using Glasgow Outcome Scale. The results showed that 33 patients (out of 56, 58...
September 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28856482/hyperextension-injuries-of-the-knee-do-patterns-of-bone-bruising-predict-soft-tissue-injury
#19
A M Ali, J K Pillai, V Gulati, C E R Gibbons, B J Roberton
OBJECTIVE: To establish whether patterns of soft tissue injury following knee hyperextension are associated with post-traumatic 'bone bruise' distribution. MATERIALS AND METHODS: Patients with a knee MRI within one year of hyperextension injury were identified at our institution over a 7 year period. MRIs, plain radiographs and clinical details of these patients were reviewed. RESULTS: Twenty-five patients were identified (median time from injury to MRI = 24 days)...
August 31, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28833365/magnetic-resonance-imaging-findings-of-the-proximal-metacarpus-in-quarter-horses-used-for-cutting-retrospective-analysis-of-32-horses-2009-2012
#20
M F Barrett, P T Manchon, J Hersman, C E Kawcak
BACKGROUND: Injury to the proximal suspensory ligament is a common cause of lameness in cutting horses. Radiographic and ultrasonographic imaging of lesions responsible for lameness can provide ambiguous results. MRI provides the most comprehensive diagnostic imaging evaluation of lesions specifically affecting cutting horses. OBJECTIVES: Describe the distribution and severity of bone and soft tissue lesions present in the proximal metacarpus of Quarter Horse cutting horses and assess the impact of these lesions on return to competition...
August 18, 2017: Equine Veterinary Journal
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