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https://www.readbyqxmd.com/read/29149204/evaluation-of-osseous-integration-of-titanium-orthopedic-screws-with-novel-sla-treatment-in-porcine-model
#1
Tzu-Hsiang Lin, Hsin-Tai Hu, Hsueh-Chun Wang, Meng-Chian Wu, Shu-Wei Wu, Ming-Long Yeh
The success of many endosseous implants in orthopaedic and dental applications depends on the surface characteristics, as they affect osseous integration. Previous investigations indicated that a novel large-grit sand-blasted and acid-etched (SLA) titanium (denoted as SLAffinity-Ti) implant had better bone integration than that of a comparably shaped implant with a plasma-sprayed titanium surface. The purpose of the present investigation was to create a SLAffinity surface on pedicle screws and trauma screws and to compare it with the surfaces of a sand-blasted-only implant and commercial implants in terms of bone integration...
2017: PloS One
https://www.readbyqxmd.com/read/29149146/dexamethasone-and-dexmedetomidine-as-an-adjuvant-to-intraarticular-bupivacaine-for-postoperative-pain-relief-in-knee-arthroscopic-surgery-a-randomized-trial
#2
Seham M Moeen, Islam K Ramadan, Hesham A Elkady
BACKGROUND: Knee arthroscopy causes minimal trauma, however, good analgesia is required for early rehabilitation and return to normal life in the patients. OBJECTIVE: We aimed to compare the analgesic effects of intraarticular dexamethasone and dexmedetomidine added to bupivacaine with those of bupivacaine alone. STUDY DESIGN: This study uses a double-blind, randomized, controlled design with allocation concealment in a 3-armed parallel group format among patients undergoing arthroscopic meniscal surgery...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29142582/pseudoaneurysm-of-left-proximal-common-carotid-artery-following-penetrating-trauma
#3
Rehana Shaikh, Saba Sohail, Parvez Ahmed Shaikh, Qamar-Un-Nisa Nisa
A 33-year male with history of penetrating trauma to left upper chest in 2006, presented through Medical unit to Radiology Department with complain of hemoptysis. Chest X-ray showed a soft tissue lesion in left upper lobe with a linear metallic foreign body. Contrast enhanced CT scan of chest and later CTA was performed which showed a saccular aneurysm arising from mediastinal part of left common aortic artery surrounded by thrombosis with a cylindrical linear metallic foreign body. He was planned for endovascular repair with stenting which he could not afford due to financial constraints...
September 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/29132544/histaminergic-receptors-modulate-spinal-cord-injury-induced-neuronal-nitric-oxide-synthase-upregulation-and-cord-pathology-new-roles-of-nanowired-drug-delivery-for-neuroprotection
#4
Hari S Sharma, Ranjana Patnaik, Dafin F Muresanu, José V Lafuente, Asya Ozkizilcik, Z Ryan Tian, Ala Nozari, Aruna Sharma
The possibility that histamine influences the spinal cord pathophysiology following trauma through specific receptor-mediated upregulation of neuronal nitric oxide synthase (nNOS) was examined in a rat model. A focal spinal cord injury (SCI) was inflicted by a longitudinal incision into the right dorsal horn of the T10-11 segments. The animals were allowed to survive 5h. The SCI significantly induced breakdown of the blood-spinal cord barrier to protein tracers, reduced the spinal cord blood flow at 5h, and increased the edema formation and massive upregulation of nNOS expression...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/29132543/intravenous-administration-of-functionalized-magnetic-iron-oxide-nanoparticles-does-not-induce-cns-injury-in-the-rat-influence-of-spinal-cord-trauma-and-cerebrolysin-treatment
#5
Preeti K Menon, Aruna Sharma, José V Lafuente, Dafin F Muresanu, Zoraida P Aguilar, Y Anderw Wang, Ranjana Patnaik, Herbert Mössler, Hari S Sharma
Influence of iron oxide magnetic nanoparticles (IOMNPs, 10nm in diameter, 0.25 or 0.50mg/mL in 100μL, i.v.) on the blood-brain barrier (BBB) permeability, edema formation, and neuronal or glial changes within 4-24h after administration was examined in normal rats and after a focal spinal cord injury (SCI). Furthermore, effect of cerebrolysin, a balanced composition of several neurotrophic factors, and active peptide fragments was also evaluated on IOMNP-induced changes in central nervous system (CNS) pathology...
2017: International Review of Neurobiology
https://www.readbyqxmd.com/read/29129760/the-key-role-of-proinflammatory-cytokines-matrix-proteins-rankl-opg-and-wnt-%C3%AE-catenin-in-bone-healing-of-hip-arthroplasty-patients
#6
Jean Cassuto, Agnetha Folestad, Jan Göthlin, Henrik Malchau, Johan Kärrholm
INTRODUCTION: We still lack understanding of why some implants fail while most remain stable after decades of use. Proinflammatory cytokines, matrix proteins and bone regulating cytokines of the RANKL/OPG (receptor activator of nuclear factor kappa B ligand/osteoprotegerin) and Wnt/β-catenin pathways are mandatory for normal bone repair but their spatial and temporal role in the healing of primary total hip arthroplasties (THA) has not been previously shown. MATERIALS AND METHODS: Twenty-four osteoarthritis patients with one-sided well-fixed primary THA were prospectively monitored during 18years (18Y) with repeated blood samples, clinical variables and radiographs...
November 9, 2017: Bone
https://www.readbyqxmd.com/read/29126754/effect-of-pulsed-therapeutic-ultrasound-and-diosmin-on-skeletal-muscle-oxidative-parameters
#7
Luis Fernando Sousa Filho, Paula P Menezes, Dayanne Valéria Soares Santana, Bruno S Lima, Shanmugan Saravanan, Grace Kelly M Almeida, José Evaldo R Menezes Filho, Marta M B Santos, Adriano Antunes A S Araújo, Evaleide Diniz de Oliveira
Cyclodextrins (CDs) have been widely used as a promising alternative in the formation of inclusion complexes with poorly soluble molecules. From this perspective, the present study aimed to study the inclusion complexes of diosmin in β-cyclodextrin, chemically quantify the diosmin-in-gel preparation and analyze the stability of the gels. Furthermore, we evaluated the effect of therapeutic pulsed ultrasound (TPU) in association with the gel-diosmin complex on the parameters of muscle damage and oxidative stress in rats...
November 7, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29125417/loss-of-mechanosensitive-sclerostin-may-accelerate-cranial-bone-growth-and-regeneration
#8
Kyung Shin Kang, Jeff Lastfogel, Laurie L Ackerman, Andrew Jea, Alexander G Robling, Sunil S Tholpady
OBJECTIVE Cranial defects can result from trauma, infection, congenital malformations, and iatrogenic causes and represent a surgical challenge. The current standard of care is cranioplasty, with either autologous or allogeneic material. In either case, the intrinsic vascularity of the surrounding tissues allows for bone healing. The objective of this study was to determine if mechanotransductive gene manipulation would yield non-weight-bearing bone regeneration in a critical size calvarial defect in mice. METHODS A mouse model of Sost deletion in Sost knockout (KO) mice was created in which the osteocytes do not express sclerostin...
November 10, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29117923/genital-injuries-acute-evaluation-and-management
#9
REVIEW
Heather N Lopez, Mariel A Focseneanu, Diane F Merritt
Genital trauma may result in external injuries to the labia, vulva or vagina, urethra and anus and internal injuries to the bony pelvis, bladder, bowels and reproductive organs. Worldwide, the most common cause of genital trauma in reproductive age women is injury sustained during childbirth, but in this chapter we will focus on accidental genital injuries as well as those arising from sexual violence, and female genital mutilation. While genital injuries alone rarely result in death; if not properly managed, chronic discomfort, dyspareunia, infertility, or fistula formation may result...
September 28, 2017: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29116576/bridging-hard-callus-at-48%C3%A2-days-in-an-open-femoral-shaft-fracture-with-segmental-defect-treated-with-a-first-stage-masquelet-technique-i-wasn-t-expecting-that
#10
Andrew James Hotchen, Lynne V Barr, Matija Krkovic
The Masquelet technique is a strategy for management of segmental bone defects. It is a two-stage procedure that involves inducing a synovial-like membrane that can be used for a bone graft. Segmental bone defects can occur following trauma and can accompany traumatic brain injury. There is a well-documented, albeit debated, association between traumatic brain injury and increased rate of new bone formation. Here, we present a case of unexpected callus formation in a segmental femoral fracture. The patient had a traumatic brain injury and was treated with the first stage of the Masquelet technique...
November 7, 2017: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/29116332/-therapy-of-scars-with-lasers
#11
REVIEW
G G Gauglitz, J Pötschke, M T Clementoni
Scar formation is the consequence of trauma to the skin that affects the deep parts of the dermis. Different scar types like immature, mature, atrophic, hypertrophic, or keloid scars can develop depending on factors like age, anatomic localization, cause of trauma, the course of the healing process, and individual predispositions. Keloids and hypertrophic scars are often associated with itching, pain, tautness of the skin, and functional impairments, thus, leading to significantly reduced quality of life in some patients...
November 7, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/29109843/posttraumatic-parotid-sialocele-complicating-a-mandibular-fracture-a-case-report
#12
Jesse Falk, Ryan Borgwardt, Stephen MacLeod
Blunt trauma to the parotid resulting in the formation of a sialocele is rare, with only three cases identified in the literature. We present a unique case involving a 32-year-old man with blunt trauma resulting in a left mandibular angle fracture. The patient underwent open reduction and internal fixation of the left mandibular angle fracture via transoral approach. At follow-up, after resolution of the edema from the injury, a sialocele was noted in the region of the left anterior parotid gland. The patient was treated conservatively with antisialagogues, pressure dressings, and multiple percutaneous aspirations that ultimately resulted in resolution of the sialocele...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29109835/anterior-submandibular-approach-for-transmylohyoid-endotracheal-intubation-a-reappraisal-with-prospective-study-in-206-cases-of-craniomaxillofacial-fractures
#13
Nitin Bhola, Anendd Jadhav, Atul Kala, Rahul Deshmukh, Umesh Bhutekar, G S V Prasad
Despite a paradigm shift in anesthesia and trauma airway management, the craniomaxillofacial fracture (CMF) patients continue to pose a challenge. A prospective study was planned between April 2007 and March 2015 to investigate the safety, efficacy, utility, and complications of anterior submandibular approach for transmylohyoid intubation (TMI) in CMFs using an armored endotracheal tube (ETT). Out of 1,207 maxillofacial trauma cases reported, this study recruited 206 patients (152 males and 54 females) aged between 21 and 60 years...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29104801/childhood-adversities-are-not-a-predictors-of-sstr4met-in-alcoholics
#14
Dominika Berent, Michał Pogórski, Dominika Kulczycka-Wojdala, Ewa Kusideł, Marian Macander, Zofia Pawłowska
Background: Genome methylation may modulate synaptic plasticity, being a potential background for mental disorder. Adverse childhood experiences (ACEs), known to be frequently reported by patients with alcohol dependence (AD), have been proposed as one of environmental inequities influencing DNA methylation. The study is aiming 1.To assess a promoter region methylation in gene for somatostatin receptor subtype-4 (SSTR4), a receptor for somatostatin, a neurotransmitter engaged in neuroplasticity and memory formation, in patients with AD; 2...
2017: Translational Neuroscience
https://www.readbyqxmd.com/read/29104114/newfound-sex-differences-in-axonal-structure-underlie-differential-outcomes-from-in-vitro-traumatic-axonal-injury
#15
Jean-Pierre Dollé, Andrew Jaye, Stewart A Anderson, Hossein Ahmadzadeh, Vivek B Shenoy, Douglas H Smith
Since traumatic axonal injury (TAI) is implicated as a prominent pathology of concussion, we examined potential sex differences in axon structure and responses to TAI. Rat and human neurons were used to develop micropatterned axon tracts in vitro that were genetically either male or female. Ultrastructural analysis revealed for the first time that female axons were consistently smaller with fewer microtubules than male axons. Computational modeling of TAI showed that these structural differences place microtubules in female axons at greater risk of failure during trauma under the same applied loads than in male axons...
November 13, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29102129/an-overview-of-cochlear-implant-electrode-array-designs
#16
REVIEW
Anandhan Dhanasingh, Claude Jolly
Cochlear implant electrode arrays are designed with specific characteristics that allow for the preservation of intra-cochlear structures during the insertion process, as well as during explantation. Straight lateral wall (LW) electrode arrays and pre-curved modiolar hugging (MH) electrode arrays are the two types that are commercially available. Although there is a third type of electrode array called the mid-scala (MS), which is positioned in the middle of the scala tympani (ST), and is usually considered as an MH type of electrode...
October 18, 2017: Hearing Research
https://www.readbyqxmd.com/read/29099374/traumatic-bone-cyst-of-an-anterior-mandible-with-previous-symphyseal-fracture-in-a-pediatric-patient-a-rare-finding-and-etiopathologic-correlation
#17
Kumar Nilesh, Aaditee V Vande, Shivsagar Tewary, K V Suresh
Traumatic bone cysts (TBCs) are uncommon intraosseous lesions, classified as pseudocysts because they lack an epithelial membrane lining. The etiology of a pseudocyst has not been determined. Various hypotheses have been put forward to explain its pathogenesis, of which the traumatic-hemorrhagic theory is the most commonly accepted. Minor trauma, insufficient to cause fracture or iatrogenic injury, is commonly implicated as the stimulus initiating cyst formation. A TBC presenting after jaw fracture has been rarely reported in the literature...
November 2017: General Dentistry
https://www.readbyqxmd.com/read/29091065/the-3d-characteristics-of-post-traumatic-syringomyelia-in-a-rat-model-a-propagation-based-synchrotron-radiation-microtomography-study
#18
Shenghui Liao, Shuangfei Ni, Yong Cao, Xianzhen Yin, Tianding Wu, Hongbin Lu, Jianzhong Hu, Hao Wu, Ye Lang
Many published literature sources have described the histopathological characteristics of post-traumatic syringomyelia (PTS). However, three-dimensional (3D) visualization studies of PTS have been limited due to the lack of reliable 3D imaging techniques. In this study, the imaging efficiency of propagation-based synchrotron radiation microtomography (PB-SRµCT) was determined to detect the 3D morphology of the cavity and surrounding microvasculature network in a rat model of PTS. The rat model of PTS was established using the infinite horizon impactor to produce spinal cord injury (SCI), followed by a subarachnoid injection of kaolin to produce arachnoiditis...
November 1, 2017: Journal of Synchrotron Radiation
https://www.readbyqxmd.com/read/29089710/case-report-intestinal-obstruction-as-a-late-presentation-of-perforation-of-the-transverse-colon-following-blunt-abdominal-trauma
#19
José Caballero, Cinthya Alva-Torres, Edwin García
Colonic perforation associated with blunt abdominal trauma is rare. Even more so is the formation of an inflammatory adhesion preventing leakage into the peritoneum. We present a case of the above in which the patient presented 1 month later with intestinal obstruction which required surgical intervention. A 38-year-old male, victim of a road traffic accident (RTA), presented with multiple fractures in his extremities which had to be operated on and was later discharged without complications. He was readmitted 1 month following the trauma with intestinal obstruction...
October 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/29078875/validity-of-the-braden-scale-in-grading-pressure-ulcers-in-trauma-and-burn-patients
#20
Lauren H Griswold, Russell L Griffin, Thomas Swain, Jeffrey D Kerby
BACKGROUND: Pressure ulcers are a costly hospital-acquired condition in terms of clinical outcome and expense. The Braden Scale was developed in 1987 as a risk scoring method for pressure ulcers and uses six different risk factors: sensory perception, moisture, activity, mobility, nutrition, and friction and shear. A score of ≤18 is considered high risk. To date, research on the utility of the Braden Scale has focused on general medicine and nontrauma/burn surgery patients. We hypothesize that the Braden Scale does not accurately discriminate who will get a pressure ulcer among trauma and burn patients...
November 2017: Journal of Surgical Research
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