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Bone Contusion

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https://www.readbyqxmd.com/read/28468225/open-reduction-in-pediatric-condylar-fracture
#1
Alexandre Agostini Barbosa, Ronaldo Célio Mariano
Facial fractures in children are rare. Lack of pneumatization, fat pockets, mixed dentition, contribute to the elasticity and bone stability. When mandibular fractures occur in children, most often involve the condyle by indirect trauma. Such fractures are the center of discussion on the form of treatment if this should be performed conservatively, or held the reduction and fixation of the fracture with surgical exposure of the fragments. In condylar fractures in children, in most patients, the proposed treatment is closed reduction...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28452894/severe-trauma-and-chronic-stress-activates-extramedullary-erythropoiesis
#2
Ines G Alamo, Kolenkode B Kannan, Tyler J Loftus, Harry Ramos, Philip A Efron, Alicia M Mohr
BACKGROUND: Severe traumatic injury is associated with bone marrow dysfunction that manifests as impaired erythropoiesis and prolonged hematopoietic progenitor cell (HPC) mobilization from the bone marrow. Extramedullary erythropoiesis, the development of red blood cells outside the bone marrow, has not been studied following severe injury and critical illness. This study examined the influence of lung contusion/hemorrhagic shock (LCHS) followed by chronic stress (CS) on the rodent spleen and to investigate the involvement of the splenic erythropoietin/erythropoietin receptor and BMP4 signaling...
April 27, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28447572/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
#3
Jessica J Matyas, Andrew N Stewart, Allison 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...
April 26, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28424850/incidence-and-mri-characterization-of-the-spectrum-of-posterolateral-corner-injuries-occurring-in-association-with-acl-rupture
#4
Eduardo Frois Temponi, Lúcio Honório de Carvalho Júnior, Adnan Saithna, Mathieu Thaunat, Bertrand Sonnery-Cottet
OBJECTIVE: To determine the incidence and MRI characteristics of the spectrum of posterolateral corner (PLC) injuries occurring in association with anterior cruciate ligament (ACL) rupture. MATERIALS AND METHODS: We carried out a level IV, retrospective case series study. All patients clinically diagnosed with an ACL rupture between July 2015 and June 2016 who underwent MRI of the knee were included in the study. In addition to standard MRI knee reporting, emphasis was placed on identifying injury to the PLC and a description of involvement of these structures by two musculoskeletal radiologists...
April 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28405856/what-injury-mechanism-and-patterns-of-ligament-status-are-associated-with-isolated-coronoid-isolated-radial-head-and-combined-fractures
#5
In Hyeok Rhyou, Ji-Ho Lee, Kyung Chul Kim, Kee Baek Ahn, Seong Cheol Moon, Hyeong Jin Kim, Jung Hyun Lee
BACKGROUND: Isolated coronoid, isolated radial head, and combined coronoid and radial head fractures are common elbow fractures, and specific ligamentous injury of each fracture configuration has been reported. However, the osseous injury mechanism related to ligament status remains unclear. QUESTIONS/PURPOSES: The objectives of this study were: (1) to determine what ligamentous injury patterns (medial or lateral collateral) and bone contusion patterns (medial or lateral) are associated with isolated coronoid, isolated radial head, and combined coronoid and radial head fractures; (2) to correlate the osseous injury mechanism based on these findings with isolated coronoid, isolated radial head, and combined coronoid and radial head fractures; and (3) to determine whether isolated and combined coronoid fractures have different fracture lines through the coronoid (tip or anteromedial facet), speculated to be caused by different injury mechanisms...
April 12, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28382259/traumatic-tension-pneumocephalus-two-cases-and-comprehensive-review-of-literature
#6
REVIEW
Promod Pillai, Rohit Sharma, Larami MacKenzie, Eugene F Reilly, Paul R Beery, Thomas J Papadimos, Stanislaw Peter A Stawicki
Although traumatic pneumocephalus is not uncommon, it rarely evolves into tension pneumocephalus (TP). Characterized by the presence of increasing amounts of intracranial air and concurrent appearance or worsening neurological symptoms, TP can be devastating if not recognized and treated promptly. We present two cases of traumatic TP and a concise review of literature on this topic. Two cases of traumatic TP are presented. In addition, a literature search revealed 20 additional cases, of which 18 had sufficient information for inclusion...
January 2017: International Journal of Critical Illness and Injury Science
https://www.readbyqxmd.com/read/28338402/testosterone-plus-finasteride-prevents-bone-loss-without-prostate-growth-in-a-rodent-spinal-cord-injury-model
#7
Joshua F Yarrow, Ean G Phillips, Christine F Conover, Taylor E Bassett, Cong Chen, Tyler Teurlings, Andrea Vasconez, Jonathan Alerte, Hannah M Prock, Jessica M Jiron, Micah Flores, J Ignacio Aguirre, Stephen E Borst, Fan Ye
We have reported that testosterone-enanthate (TE) prevents the musculoskeletal decline occurring acutely after spinal cord injury (SCI), but results in a near doubling of prostate mass. Our purpose was to test the hypothesis that administration of TE plus finasteride (FIN, type II 5α-reductase inhibitor) would prevent the chronic musculoskeletal deficits in our rodent severe contusion SCI model, without inducing prostate enlargement. Forty-three 16-week old male Sprague-Dawley rats received: (1) SHAM surgery (T9 laminectomy), (2) severe (250 kdyne) contusion SCI, (3) SCI+TE (7...
March 24, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28293698/anterolateral-ligament-abnormalities-are-associated-with-peripheral-ligament-and-osseous-injuries-in-acute-ruptures-of-the-anterior-cruciate-ligament
#8
Camilo Partezani Helito, Paulo Victor Partezani Helito, Renata Vidal Leão, Marco Kawamura Demange, Marcelo Bordalo-Rodrigues
PURPOSE: Few studies have used MRI to identify the ALL. As it was shown that it is not possible to precisely characterize this ligament in all examination, it is important to identify concomitant lesions that can help in diagnosing ALL abnormalities. It is important to characterise this injury due to its association with anterolateral knee instability. Thus, the present study was performed to determine the frequency of ALL injuries in patients with acute ACL rupture and to analyse its associated knee lesions...
April 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28230585/decompressive-craniectomy-with-bifrontal-coronal-incision-in-the-management-of-fronto-temporal-contusion-and-laceration-for-early-cranioplasty
#9
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...
February 22, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28229571/transnasal-transsphenoidal-brain-injury-by-a-fencing-foil-an-unusual-case-report-and-brief-literature-review
#10
Rafet Özay, Mehmet S Balkan, Çağhan Tönge, Zeki Şekerci
BACKGROUND: In this report, the authors present an unusual case of a 10-year-old child who suffered a severe headache and rhinorrhea that occurred as a result of fencing foil sports injury via transnasal-transsphenoidal (TNTS) pathway. METHODS: Following to trauma, the child had shown neurological symptoms such a pupil dilatation, change in consciousness and mild hemiparesia. Imaging demonstrated destruction of bone structures including posterior wall of sphenoid sinus and anterosuperior part of sella turcica, and also a contusion at right thalamic region...
February 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28215550/evaluation-of-unenhanced-post-mortem-computed-tomography-to-detect-chest-injuries-in-violent-death
#11
I Sifaoui, C Nedelcu, G Beltran, V Dupont, J Lebigot, A Gaudin, C Ridereau Zins, C Rouge Maillard, C Aubé
PURPOSE: The aim of this study was to assess the performances of unenhanced post-mortem computed tomography (CT) to detect thoracic injuries in violent death. MATERIALS AND METHODS: Retrospectively, we conducted a review of unenhanced CT scans of 67 victims of violent deaths with thoracic injuries and compared CT findings with the results of clinical autopsy. Our gold standard was a comparison of CT scans with autopsy discussed in a monthly forensic radiology multidisciplinary team meeting (MDTM)...
May 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28203112/bone-contusion-progression-from-traumatic-knee-injury-association-of-rate-of-contusion-resolution-with-injury-severity
#12
Douglas R Pedersen, Georges Y El-Khoury, Dan R Thedens, Mothana Saad-Eldine, Phinit Phisitkul, Annunziato Amendola
BACKGROUND: Bone contusions are frequently encountered in magnetic resonance imaging (MRI) evaluation of knee anterior cruciate ligament (ACL) injuries. Their role as indicators of injury severity remains unclear, primarily due to indeterminate levels of joint injury forces and to a lack of preinjury imaging. PURPOSE: The purpose of this study was to 1) quantify bone contusion pathogenesis following traumatic joint injuries using fixed imaging follow-ups, and 2) assess the feasibility of using longitudinal bone contusion volumes as an indicator of knee injury severity...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28187804/decompressive-craniectomy-in-acute-brain-injury
#13
REVIEW
D A Brown, E F M Wijdicks
Decompressive surgery to reduce pressure under the skull varies from a burrhole, bone flap to removal of a large skull segment. Decompressive craniectomy is the removal of a large enough segment of skull to reduce refractory intracranial pressure and to maintain cerebral compliance for the purpose of preventing neurologic deterioration. Decompressive hemicraniectomy and bifrontal craniectomy are the most commonly performed procedures. Bifrontal craniectomy is most often utilized with generalized cerebral edema in the absence of a focal mass lesion and when there are bilateral frontal contusions...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28173736/the-alternative-receptor-for-complement-component-5a-c5ar2-conveys-neuroprotection-in-traumatic-spinal-cord-injury
#14
Patrick J C Biggins, Faith H Brennan, Stephen M Taylor, Trent M Woodruff, Marc J Ruitenberg
This study investigated the role of the alternative receptor for complement activation fragment C5a, C5aR2, in secondary inflammatory pathology after contusive spinal cord injury (SCI) in mice. C5ar2(-/-) mice exhibited decreased intraparenchymal tumor necrosis factor alpha and interleukin-6 acutely post-injury, but these reductions did not translate into improved outcomes. We show that loss of C5aR2 leads to increased lesion volumes, reduced myelin sparing, and significantly worsened recovery from SCI in C5ar2(-/-) animals compared to wild-type (WT) controls...
April 26, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28145928/open-reduction-in-pediatric-condylar-fracture
#15
Alexandre Agostini Barbosa, Ronaldo Célio Mariano
Facial fractures in children are rare. Lack of pneumatization, fat pockets, mixed dentition, contribute to the elasticity and bone stability. When mandibular fractures occur in children, most often involve the condyle by indirect trauma. Such fractures are the center of discussion on the form of treatment if this should be performed conservatively, or held the reduction and fixation of the fracture with surgical exposure of the fragments. In condylar fractures in children, in most patients, the proposed treatment is closed reduction...
January 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28116255/post-traumatic-medial-meniscal-cyst-in-young-a-case-report
#16
Prafulla Herode, Abhijeet Shroff, Vishal Mandlewala, Amit Chaudhary
INTRODUCTION: Meniscal cysts are rare, in that cysts of lateral meniscus are 3 times to 10 times more common than those of medial meniscus. Etiology of meniscal cysts includes trauma which results in contusion and haemorrage within the substance of meniscus leading to mucoid degeneration. Degeneration with age results in local necrosis and mucoid degeneration into a cyst, developmental inclusion of synovial cells within the substance of the meniscus and often are a result of extrusion of synovial fluid through a tear of the meniscus, resulting in a one-way valve effect of the tear...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28100862/-bone-flap-resorption-after-cranioplasty-in-pediatric-patients-report-of-2-cases
#17
Rintaro Yokoyama, Takeshi Mikami, Shouhei Noshiro, Kei Miyata, Kentaro Toyama, Katsuya Komatsu, Noriaki Kikuchi, Tadashi Hasegawa, Nobuhiro Mikuni
Aseptic bone flap resorption, a rare complication after cranioplasty following decompressive craniectomy, is more likely to develop in children. We experienced two cases of aseptic bone flap resorption and identified potential pathophysiological mechanisms through histological findings. In the first case, an 11-year-old girl underwent decompressive craniectomy due to brain swelling with contusion. An autologous bone flap was cryopreserved for four months. Twenty-five months after cranioplasty with autologous bone flap, aseptic bone flap resorption was observed, and cranioplasty was performed with ceramic bone...
January 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28099381/daily-propranolol-administration-reduces-persistent-injury-associated-anemia-after-severe-trauma-and-chronic-stress
#18
Ines G Alamo, Kolenkode B Kannan, Letitia E Bible, Tyler J Loftus, Harry Ramos, Philip A Efron, Alicia M Mohr
BACKGROUND: After severe trauma, patients develop a norepinephrine-mediated persistent, injury-associated anemia. This anemia is associated with suppression of bone marrow (BM) erythroid colony growth, along with decreased iron levels, and elevated erythropoietin (EPO) levels, which are insufficient to promote effective erythropoiesis. The impact of norepinephrine on iron regulators, such as ferroportin, transferrin, and transferrin receptor-1 (TFR-1), is unknown. Using a clinically relevant rodent model of lung contusion (LC), hemorrhagic shock (HS), and chronic stress (CS), we hypothesize that daily propranolol (BB), a nonselective β blocker, restores BM function and improves iron homeostasis...
April 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28038736/-bone-cement-implant-as-an-alternative-for-orbital-floor-reconstruction-a-case-report
#19
Enrique Vargas-Solalinde, Marisol E Huichapa-Padilla, Daniel Garza-Cantú, Víctor H Reyna-Martínez, Julio Alatorre-Ricardo, Juan Luis González-Treviño
BACKGROUND: The management of orbitary fractures is one of the most challenging in facial trauma; the variety of reconstruction materials for its treatment is broad and is constantly improving, but despite this there is no consensus for its use or literature that sustains it. OBJECTIVE: To present the use and design of a preformed bone implant as an alternative for the reconstruction of orbital floor fractures in the pediatric age group. CLINICAL CASE: A 7-year old male who suffered a right hemifacial contusion trauma with clinical and tomographic diagnosis of right pure blowout type orbital floor fracture with inferior rectus muscle entrapment and right post-traumatic palpebral ptosis...
December 27, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/27800203/surgical-treatment-for-occipital-condyle-fracture-c1-dislocation-and-cerebellar-contusion-with-hemorrhage-after-blunt-head-trauma
#20
Shigeo Ueda, Nobuhiro Sasaki, Miyuki Fukuda, Minoru Hoshimaru
Occipital condyle fractures (OCFs) have been treated as rare traumatic injuries, but the number of reported OCFs has gradually increased because of the popularization of computed tomography (CT) and magnetic resonance imaging (MRI). The patient in this report presented with OCFs and C1 dislocation, along with traumatic cerebellar hemorrhage, which led to craniovertebral junction instability. This case was also an extremely rare clinical condition in which the patient presented with traumatic lower cranial nerve palsy secondary to OCFs...
2016: Case Reports in Orthopedics
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