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https://www.readbyqxmd.com/read/28079741/management-of-pediatric-open-tibia-fractures-with-supracutaneous-locked-plates
#1
Veerappa N Radhakrishna, Vrisha Madhuri
We evaluated the novel application of supracutaneous locked plates in pediatric open tibia fractures. Pediatric open tibia fractures stabilized with a locked supracutaneous plate from January 2011 to December 2014 were reviewed. Twenty-eight children, mean age 8.9 years, with 29 open tibia fractures were included. Nine of these children who had metaphyseal or metadiaphyseal fractures did not require joint spanning. The mean follow-up duration was 13.5 months. The mean time to uneventful union was 11.46 weeks, with no unacceptable malunion...
January 10, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28076751/salter-harris-type-iv-fracture-of-the-proximal-phalanx-of-the-thumb-with-rotation-of-the-epiphysis-outcome-10-years-following-open-reduction-and-k-wire-fixation
#2
Mohammad M Al-Qattan
INTRODUCTION: Salter-Harris type IV fracture of the proximal phalanx with 90° rotation of the epiphysis is very rare. We report on a case of Salter-Harris type IV fracture of the proximal phalanx of the thumb with rotation of the epiphysis and document the outcome 10 years after surgery. PRESENTATION OF CASE: A 5-year old boy presented with Salter-Harris type IV fracture of the thumb with 90° rotation of the epiphysis. Open reduction and K-wire fixation was done...
December 27, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28076363/effects-of-loading-duration-and-short-rest-insertion-on-cancellous-and-cortical-bone-adaptation-in-the-mouse-tibia
#3
Haisheng Yang, Rachel E Embry, Russell P Main
The skeleton's osteogenic response to mechanical loading can be affected by loading duration and rest insertion during a series of loading events. Prior animal loading studies have shown that the cortical bone response saturates quickly and short rest insertions between load cycles can enhance cortical bone formation. However, it remains unknown how loading duration and short rest insertion affect load-induced osteogenesis in the mouse tibial compressive loading model, and particularly in cancellous bone. To address this issue, we applied cyclic loading (-9 N peak load; 4 Hz) to the tibiae of three groups of 16 week-old female C57BL/6 mice for two weeks, with a different number of continuous load cycles applied daily to each group (36, 216 and 1200)...
2017: PloS One
https://www.readbyqxmd.com/read/28052890/reassessing-biopsychosocial-psychiatry
#4
EDITORIAL
Will Davies, Rebecca Roache
Psychiatry uncomfortably spans biological and psychosocial perspectives on mental illness, an idea central to Engel's biopsychosocial paradigm. This paradigm was extremely ambitious, proposing new foundations for clinical practice as well as a non-reductive metaphysics for mental illness. Perhaps given this scope, the approach has failed to engender a clearly identifiable research programme. And yet the view remains influential. We reassess the relevance of the biopsychosocial paradigm for psychiatry, distinguishing a number of ways in which it could be (re)conceived...
January 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/28050701/comparing-return-to-sport-activities-after-short-metaphyseal-femoral-arthroplasty-with-resurfacing-and-big-femoral-head-arthroplasties
#5
Panagiotis K Karampinas, Eustratios G Papadelis, John A Vlamis, Hlias Basiliadis, Spiros G Pneumaticos
OBJECTIVES: Young patients feel that maintaining sport activities after total hip arthroplasty constitutes an important part of their quality of life. The majority of hip surgeons allow patients to return to low-impact activities, but significant caution is advised to taking part in high-impact activities. The purpose of this study is to compare and evaluate the post-operative return to daily living habits and sport activities following short-metaphyseal hip and high functional total hip arthroplasties (resurfacing and big femoral head arthroplasties)...
January 3, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28040073/fixation-of-intra-articular-fractures-of-the-distal-radius-using-intramedullary-nailing-a-randomized-trial-versus-palmar-locking-plates
#6
Gertraud Gradl, Steffi Falk, Thomas Mittlmeier, Martina Wendt, Nadja Mielsch, Georg Gradl
BACKGROUND: Proposed benefits of intramedullary techniques include limited soft tissue dissection while affording sufficient stability to allow early wrist motion. The primary null hypothesis of this randomized trial was that there is no significant difference with respect to functional outcome, pain and disability between patients treated with either 2.4-mm volar locking plate fixation or intramedullary nail fixation of intra-articular fractures of the distal radius. METHODS: We conducted a single-centre, prospective randomized matched-pairs trial...
December 2016: Injury
https://www.readbyqxmd.com/read/28018833/aneurysmal-bone-cyst-arising-from-the-first-rib-a-rare-cause-of-thoracic-outlet-syndrome
#7
Manuel Medina, Subroto Paul
Aneurysmal bone cyst is a rare benign cystic bone lesion with an incidence of only 0.14 per 100,000 individuals and most commonly affects the metaphyses of long bones, spine, and pelvis. We present a very rare case of a 17-year-old boy with a rapidly expanding aneurysmal bone cyst arising from the first rib, resulting in neurogenic thoracic outlet syndrome secondary to its compression of the brachial plexus. The patient's symptoms resolved after en bloc resection. To our knowledge there have been no other reports in the literature of thoracic outlet syndrome due to aneurysmal bone cyst arising from the first rib...
December 2016: Thoracic and Cardiovascular Surgeon Reports
https://www.readbyqxmd.com/read/28018071/reimplantation-of-contaminated-extruded-segment-of-lateral-femoral-condyle-cleansed-with-10-povidine-iodine-in-complex-floating-knee-injury-with-excellent-outcome-case-report-with-2-year-follow-up
#8
Prahalad Kumar Singhi, R Sivakumar, V Somashekar, Vinayak Kusabi, T Vinoth
Traumatic extrusion of bone is a rare complication of high energy open fractures, and there are only few studies published in literature on reimplantation of the extruded bone segment. Studies with clear guidelines regarding timing of reimplantation, stabilisation of extruded bone segments, bone disinfection and disinfection techniques are very few. Previous reports describe disinfection using thermal or chemical methods. We present a case scenario of successful reimplantation of an extruded metaphyseal segment of distal femoral condyle following cleaning with copious saline and soaked in 10% povidine-iodine for 20 min in a 21 year old male patient of a complex floating knee injury with excellent outcome based on Karlstrom and Olerud criteria...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28005495/growth-plate-lesions-of-fattening-bulls
#9
M Levi, K E Dittmer, A Gentile, A Beltrame, M Bolcato, M Morgante, E Fiore, C Benazzi
Lameness related to growth plate lesions is an important problem in the beef industry. This article describes the macroscopic and microscopic lesions in the distal metatarsal physis of bulls from an association of farmers in northeastern Italy. The metatarsal bones of 62 bulls (12 with severe lameness and 50 without lameness), average age 16.44 ± 1.72 months, were examined at the abattoir. The animals came from the same geographic area and shared intensive husbandry practices and a diet based on maize starch...
January 1, 2016: Veterinary Pathology
https://www.readbyqxmd.com/read/28000986/cortical-color-and-the-cognitive-sciences
#10
Berit Brogaard, Dimitria Electra Gatzia
Back when researchers thought about the various forms that color vision could take, the focus was primarily on the retinal mechanisms. Since that time, research on human color vision has shifted from an interest in retinal mechanisms to cortical color processing. This has allowed color research to provide insight into questions that are not limited to early vision but extend to cognition. Direct cortical connections from higher-level areas to lower-level areas have been found throughout the brain. One of the classic questions in cognitive science is whether perception is influenced, and if so to what extent, by cognition and whether a clear distinction can be drawn between perception and cognition...
December 21, 2016: Topics in Cognitive Science
https://www.readbyqxmd.com/read/27999894/tomography-based-quantification-of-regional-differences-in-cortical-bone-surface-remodeling-and-mechano-response
#11
Annette I Birkhold, Hajar Razi, Georg N Duda, Sara Checa, Bettina M Willie
Bone has an adaptive capacity to maintain structural integrity. However, there seems to be a heterogeneous cortical (re)modeling response to loading at different regions within the same bone, which may lead to inconsistent findings since most studies analyze only one region. It remains unclear if the local mechanical environment is responsible for this heterogeneous response and whether both formation and resorption are affected. Thus, we compared the formation and resorptive response to in vivo loading and the strain environment at two commonly analyzed regions in the mouse tibia, the mid-diaphysis and proximal metaphysis...
December 20, 2016: Calcified Tissue International
https://www.readbyqxmd.com/read/27996906/athletic-performance-monitoring-pseudo-science-and-metaphysics-meet-ethics
#12
Leslie A Saxon
No abstract text is available yet for this article.
January 2017: American Journal of Bioethics: AJOB
https://www.readbyqxmd.com/read/27984687/-three-successive-fractures-of-different-hip-femoral-stems-on-the-same-patient
#13
J Gómez-Robledo
The clinical case of an 80-year-old female who suffered three fractures in uncemented stems implanted in her right hip in a period of three years is presented. A fracture occurred in the prosthetic neck and the other two at the juncture of the conical and cylindrical stem portion, coinciding with the metaphyseal-diaphyseal junction of the femur. The main causes of the failure were an increasing concentration of forces at the level of the implant as a consequence of the increased length of the neck and lateralization of the femur (offset)...
May 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27977039/thermal-conductivity-of-human-bone-in-cryoprobe-freezing-as-related-to-density
#14
Kyle E Walker, Todd Baldini, Bennie G Lindeque
Cryoprobes create localized cell destruction through freezing. Bone is resistant to temperature flow but is susceptible to freezing necrosis at warmer temperatures than tumor cells. Few studies have determined the thermal conductivity of human bone. No studies have examined conductivity as related to density. The study goal was to examine thermal conductivity in human bone while comparing differences between cancellous and cortical bone. An additional goal was to establish a relationship between bone density and thermal conductivity...
December 9, 2016: Orthopedics
https://www.readbyqxmd.com/read/27973389/sodium-selenate-treatment-mitigates-reduction-of-bone-volume-following-traumatic-brain-injury-in-rats
#15
R D Brady, B L Grills, T Romano, J D Wark, T J O'Brien, S R Shultz, S J McDonald
OBJECTIVES: Administration of sodium selenate to rats given traumatic brain injury (TBI) attenuates brain damage and improves long-term behavioural outcomes. We have previously provided evidence that TBI causes bone loss in rats, however the effect of sodium selenate treatment on bone quantity following TBI is unknown. METHODS: Rats were randomly assigned into sham injury or fluid percussion injury (FPI) groups and administered saline or sodium selenate for 12 weeks post-injury...
December 14, 2016: Journal of Musculoskeletal & Neuronal Interactions
https://www.readbyqxmd.com/read/27965047/biomechanical-comparison-of-orthogonal-versus-parallel-double-plating-systems-in-intraarticular-distal-humerus-fractures
#16
Ata C Atalar, Onur Tunalı, Ali Erşen, Mehmet Kapıcıoğlu, Yavuz Sağlam, Mehmet S Demirhan
OBJECTIVES: In intraarticular distal humerus fractures, internal fixation with double plates is the gold standard treatment. However the optimal plate configuration is not clear in the literature. The aim of this study was to compare the biomechanical stability of the parallel and the orthogonal anatomical locking plating systems in intraarticular distal humerus fractures in artificial humerus models. METHODS: Intraarticular distal humerus fracture (AO13-C2) with 5 mm metaphyseal defect was created in sixteen artificial humeral models...
December 10, 2016: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/27938394/complications-after-surgical-management-of-distal-lower-leg-fractures
#17
Mirjam V Neumann, Peter C Strohm, Kilian Reising, Joern Zwingmann, Thorsten O Hammer, Norbert P Suedkamp
BACKGROUND: Osseous healing of distal lower leg fractures can be prolonged and is often associated with wound healing problems because of the marginal soft - tissue and vascular supply in this area. Postoperative complications are frequent, and according to the literature, open reduction and plate fixation is thought to be associated with higher complication rates. The objective of this study was to evaluate the most common postoperative complications following intramedullary nailing or plate osteosynthesis of distal lower leg injuries with a focus on combined tibio-fibular fractures...
December 9, 2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/27933643/syntaxin-4a-regulates-matrix-vesicle-mediated-bone-matrix-production-by-osteoblasts
#18
Shinji Kawai, Ikumi Michikami, Jirouta Kitagaki, Kenji Hata, Hiroshi Kiyonari, Takaya Abe, Atsuo Amano, Satoshi Wakisaka
Osteoblasts secrete matrix vesicles and proteins to bone surfaces, though the molecular mechanisms of this secretion system remain unclear. The present findings reveal the roles of important genes in osteoblasts involved in regulation of extracellular matrix secretion. We especially focused on SNARE genes and identified notable Syntaxin 4a (Stx4a) expression on the basolateral side of the plasma membrane of osteoblasts. Furthermore, Stx4a overexpression was found to increase mineralization by osteoblastic cells, whereas Stx4a knockdown reduced levels of mineralization...
December 8, 2016: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/27921015/pediatric-olecranon-fractures-associated-with-radial-neck-fractures-review-and-report-of-two-cases
#19
Kemal Gokkus, Ozkan Kose, Murat Saylik, Ergin Sagtas, Ahmet Turan Aydin
INTRODUCTION: The debate regarding the description on classification and nomenclature of the injury which includes olecranon fracture associated with radial neck fractures in children is ongoing. We report two pediatric cases that could not be classified in a Monteggia-equivalents system and were treated with open reduction and k-wire fixation. The aim of this study was to perform a systematic review regarding pediatric radial neck fractures associated with olecranon fractures and presentation of two pediatric cases of olecranon fractures associated with radial neck fractures with radiocapitellar dislocation...
July 2016: Trauma Monthly
https://www.readbyqxmd.com/read/27920870/pyle-disease-metaphyseal-dysplasia-presenting-in-two-adult-sisters
#20
Diego Ximenes Soares, Amália Mapurunga Almeida, André Rodrigues Façanha Barreto, Ilze Jucá Alencar E Silva, José Daniel Vieira de Castro, Francisco José Magalhães Pinto, Daniel Aguiar Dias, Lindenberg Barbosa Aguiar
Pyle's disease is an extremely rare skeletal disorder characterized by a benign course and an autosomal recessive genetic pattern of inheritance. Its causal mutation is still unknown. In the medical literature, fewer than 30 cases have been described to date. We report the case of two female siblings, daughters of consanguineous parents, referred to the radiology department complaining of genu valgum. Laboratory tests showed no other relevant findings. Conventional radiography plain films revealed Erlenmeyer flask deformity in bilateral femorotibial metaphyses, metaphyseal flaring of long bones, and mild sclerosis of the skull base...
December 2016: Radiology case reports
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