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https://www.readbyqxmd.com/read/28810966/the-importance-of-medical-readiness-training-exercises-maintaining-medical-readiness-in-a-low-volume-combat-casualty-flow-era
#1
Kelly C Mead, David J Tennent, Daniel J Stinner
INTRODUCTION: Ringed external fixation has demonstrated promising results in the management of severe combat-related extremity injuries. The purpose of this study was to identify and compare rates of wartime-related surgical cases at times of high and low casualty time periods, and then compare these case numbers with those performed during a 2-week Medical Readiness Training Exercise (MEDRETE) in Honduras. MATERIALS AND METHODS: A retrospective review was performed of patients treated at a single Military Treatment Facility with definitive ringed external fixators during a 2-year period of high-volume combat casualty flow (January 2009-December 2010) and a subsequent 2-year period of low-volume combat casualty flow (January 2013-December 2014)...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28809642/fibular-strut-graft-for-posterior-pelvic-ring-nonunion-a-case-report
#2
M Frank, J R McCallum, T Dědek
Posttraumatic pelvic nonunions in combination with malposition are uncommon in the present-day era of modern pelvic surgery. The case describes a new surgical technique for treatment of the nonunion localized to iliosacral joint. A 42-year-old polytraumatized male presented with a pelvic fracture (type 61-C2.3) associated with a complex acetabular fracture. The patient was treated and the pelvis stabilized according to damage control principles (external fixation and pelvic C-clamp) and subsequently definitively treated according to principles of current pelvic surgery...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28799989/new-trends-in-ring-fixators
#3
Christopher A Iobst
Multiple versions of ring fixators are currently available to orthopaedic surgeons. Although the traditional Ilizarov-type ring fixator is still available, many surgeons are now using computer-assisted hexapod frames. There has been a recent surge in the number of different hexapod ring fixators on the market. This article will review some of the new trends in ring fixator hardware and software as well as discuss possible future directions of ring fixator development.
September 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28799855/surgical-management-of-cervical-spine-deformity-in-chondrodysplasia-punctata
#4
Nobuhito Morota, Satoshi Ihara, Hideki Ogiwara, Goichiro Tamura
OBJECTIVE Chondrodysplasia punctata (CDP), a rare skeletal dysplasia, can lead to cervical spine instability and deformity. However, an optimal neurosurgical intervention has yet to be established. Thus, a retrospective study was conducted to assess the efficacy of various surgical interventions for children with CDP. METHODS The authors retrospectively reviewed 9 cases of CDP in which cervical decompression with or without posterior fusion was performed between April 2007 and May 2016. Patient demographics, preoperative clinical conditions, radiographic findings, surgical procedures, and the postoperative course were analyzed in detail...
August 11, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28791464/a-computed-tomographic-anatomical-study-of-the-upper-sacrum-application-for-a-user-guide-of-pelvic-fixation-with-iliosacral-screws-in-adult-spinal-deformity
#5
Arnaud Dubory, Houssam Bouloussa, Guillaume Riouallon, Stéphane Wolff
PURPOSE: Widely used in traumatic pelvic ring fractures, the iliosacral (IS) screw technique for spino-pelvic fixation remains anecdotal in adult spinal deformity. The objective of this study was to assess anatomical variability of the adult upper sacrum and to provide a user guide of spino-pelvic fixation with IS screws in adult spinal deformity. METHODS: Anatomical variability of the upper sacrum according to age, gender, height and weight was sought on 30 consecutive pelvic CT-scans...
August 8, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28774257/a-case-of-non-union-of-ulna-fracture-managed-with-tibial-strut-cortico-cancellous-bone-grafting-in-a-paediatric-patient
#6
Collin S K Looi, Roohi S A, Ranjit Singh Gill
Forearm fractures in children complicated with non-union are uncommon. Various methods have previously been reported to manage this condition. Well documented techniques would include iliac crest grafting, cancellous insert grafting, ulnar segment grafting, cortical tibial grafting, vascularized fibular grafting and bone transport by ring fixation. The authors present a case of a child with an atrophic non-union of the ulna who was successfully treated with a cortico-cancellous tibial strut bone graft.
September 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28756379/longitudinal-midline-sacral-split-fracture-a-rare-entity
#7
Sandeep Vijayan, Viksheth Basani, Monappa Naik, Sharath Kumar Rao
Fractures involving the central canal of the sacrum are rare injuries and can be transverse or longitudinal. Transverse fractures are by far common and associated with high incidence of neurological injuries. On the contrary, longitudinal midline split fracture is an extremely rare injury with minimal or no neurological injury. They are always associated with anterior pelvic ring fracture and are vertically stable needing only fixation of the anterior pelvic injury. Plating of the anterior pelvic ring in two planes would be beneficial than single plate to prevent gradual loss of reduction...
July 28, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28754245/iatrogenic-trochlear-chondral-defects-after-anterolateral-placement-of-retrograde-femoral-nails
#8
Nicholas N DePhillipo, George F Lebus, Mark E Cinque, Nicholas I Kennedy, Jorge Chahla, Robert F LaPrade
Femoral shaft fractures are common injuries with an incidence of 37.1 per 100,000 person-years in the United States. Retrograde femoral nailing is an increasingly used treatment strategy to manage these injuries, particularly in fractures below stemmed hip prostheses, in supracondylar or distal femur fractures, in fractures in pregnant or obese patients, and when concomitant ipsilateral acetabular/pelvic ring fractures are present. Retrograde fixation has been shown to be a viable option with union rates comparable to antegrade intramedullary nailing...
July 25, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28753292/synthesis-of-11-c-labeled-rxr-partial-agonist-1-3-5-5-8-8-pentamethyl-5-6-7-8-tetrahydronaphthalen-2-yl-amino-benzotriazole-5-carboxylic-acid-cbt-pmn-by-direct-11-c-carbon-dioxide-fixation-via-organolithiation-of-trialkyltin-precursor-and-pet-imaging-thereof
#9
Osamu Shibahara, Masaki Watanabe, Shoya Yamada, Masaru Akehi, Takanori Sasaki, Akiya Akahoshi, Takahisa Hanada, Hiroyuki Hirano, Shunsuke Nakatani, Hiromi Nishioka, Yasuo Takeuchi, Hiroki Kakuta
The retinoid X receptor (RXR) partial agonist 1-[(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydronaphthalen-2-yl)amino]benzotriazole-5-carboxylic acid (1; CBt-PMN, Emax = 75%, EC50 = 143 nM) is a candidate for treatment of central nervous system (CNS) diseases such as Alzheimer's and Parkinson's diseases based on reports that RXR-full agonist 4-[1-(3,5,5,8,8-pentamethyl-5,6,7,8-tetrahydro-2-naphthyl)ethynyl]benzoic acid (bexarotene) shows therapeutic effects on these disease in rodent models. Here, we synthesized carbon-11-labeled ([(11)C]1) as a tracer for positron emission tomography (PET) and used it in a PET imaging study to examine the brain uptake and biodistribution of 1...
August 14, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28740359/a-new-lens-for-observing-fundus-with-a-noncontact-wide-angle-viewing-system
#10
Mihori Kita, Yukiko Fujii, Sachiyo Hama
Drying of the cornea during surgery, which causes poor visibility of the fundus, is one of the most serious problems when using a noncontact-type wide-angle viewing system. This study used a newly commercialized lens for observing the fundus with a noncontact wide-angle viewing system. The lens used has a very thin meniscus made of polymethyl methacrylate and a large outer diameter. Following the application of viscoelastic material, the lens can be put on the cornea without using a contact lens fixation ring...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28732604/artificial-iris-implantation-in-various-iris-defects-and-lens-conditions
#11
Christian Mayer, Tamer Tandogan, Andrea E Hoffmann, Ramin Khoramnia
We describe 6 surgical techniques used to implant a silicone iris prosthesis: sector-shaped iris segments that require suturing, injector-assisted sulcus fixation, injector-assisted capsular bag fixation with an intraocular lens (IOL) and capsular tension ring, folded iris tissue implanted with a forceps and sutured to the sclera with a scleral-fixated IOL, "sandwich" or "backpack" implantation with an IOL, and open-sky implantation with a perforating keratoplasty. The results of the techniques performed in 51 patients are discussed...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28725933/-callus-distraction-and-bone-transport-in-the-treatment-of-bone-defects
#12
REVIEW
R Baumgart, B Schuster, T Baumgart
BACKGROUND: The method of "callus distraction" is the only technique which spontaneously produces vascularized bone within the surrounding soft tissues during lengthening reconstructive procedures. Remodeling of the regenerate bone to specific mechanical load can be influenced by the surgeon. In principle, there is no limit to the amount of new bone formation which can be created; this vascularized bone is both resistant to infection and can be created to replace resected infected bone...
August 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28718330/anatomic-assessment-of-k-wire-trajectory-for-transverse-percutaneous-fixation-of-small-finger-metacarpal-fractures-a-cadaveric-study
#13
Louis C Grandizio, Amy Speeckaert, Zach Kozick, Joel C Klena
BACKGROUND: The purpose of this cadaveric study is to evaluate the trajectory of percutaneous transverse Kirschner wire (K-wire) placement for fifth metacarpal fractures relative to the sagittal profile of the fifth metacarpal in order to develop a targeting strategy for the treatment of fifth metacarpal fractures. METHODS: Using 12 unmatched fresh human upper limbs, we evaluated the trajectory of percutaneous transverse K-wire placement relative to the sagittal profile of the fifth metacarpal in order to develop a targeting strategy for treatment of fifth metacarpal fractures...
February 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28708777/intraoperative-topical-antibiotics-for-infection-prophylaxis-in-pelvic-and-acetabular-surgery
#14
Matthew T Owen, Emily M Keener, Zane B Hyde, Reaves M Crabtree, Parke W Hudson, Russell L Griffin, Jason A Lowe
OBJECTIVES: Determine if topical vancomycin and tobramycin powder reduces the incidence of surgical site infection (SSI) following pelvic ring and acetabulum fracture surgery. DESIGN: Retrospective cohort study SETTING:: University of Alabama at Birmingham, Academic Level I Trauma Center PATIENTS/PARTICIPANTS:: 219 patients (140 meeting inclusion criteria) with pelvic and acetabular fractures who underwent open reduction and internal fixation (ORIF) from March 2012 to November 2013...
June 26, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28707131/posterior-locked-lateral-compression-injury-of-the-pelvis-in-geriatric-patients-an-infrequent-and-specific-variant-of-the-fragility-fracture-of-pelvis
#15
Se-Won Lee, Weon-Yoo Kim, Sung-Jun Koh, Young-Yul Kim
INTRODUCTION: Posterior locked lateral compression injury (PLLCI) of the pelvic ring is an infrequent variant of lateral compression injury, a condition described in only eight reported cases since 2000. Lateral compression injury usually results from high-energy trauma and is characterized by locking between the medially translated fractured ilium and the anterior border of the sacrum, regardless of whether the fractured ilium involves the sacroiliac joint. However, in our experience, lateral compression injury can also result from low-energy trauma as a manifestation of pelvic fragility fracture...
July 13, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28701726/genotype-by-random-environmental-interactions-gives-an-advantage-to-non-favored-minor-alleles
#16
A Mahdipour-Shirayeh, A H Darooneh, A D Long, N L Komarova, M Kohandel
Fixation probability, the probability that the frequency of a newly arising mutation in a population will eventually reach unity, is a fundamental quantity in evolutionary genetics. Here we use a number of models (several versions of the Moran model and the haploid Wright-Fisher model) to examine fixation probabilities for a constant size population where the fitness is a random function of both allelic state and spatial position, despite neither allele being favored on average. The concept of fitness varying with respect to both genotype and environment is important in models of cancer initiation and progression, bacterial dynamics, and drug resistance...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698756/treatment-of-decubitis-ulcer-stage-iv-in-the-patient-with-polytrauma-and-vertical-share-pelvic-fracture-diagnosed-entherocollitis-and-deep-wound-infection-with-clostridium-difficile-with-combined-negative-pressure-wound-therapy-npwt-and-faecal-management-system
#17
Slavcho Stojmenski, Igor Merdzanovski, Andrej Gavrilovski, Sofija Pejkova, Gjorge Dzokic, Smilja Tudzarova
AIM: The aim of this paper was to present a case with the successful treatment of decubitis ulcer stage IV in the patient with polytrauma and vertical share pelvic fracture and diagnosed entherocollitis combined with deep wound infection with Clostridium difficile treated with combined Negative Pressure Wound Therapy (NPWT) and faecal management system. CASE REPORT: Patient D.S.1967 treated on Traumatology Clinic after tentamen suicide on 9.2.2015 with diagnosis: brain contusion; contusion of thoracal space; vertical share pelvic fracture; open fracture type II of the right calcaneus; fracture of the left calcaneus; fracture on the typical place of the left radius; fracture of the right radius with dislocation...
June 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28690535/femtosecond-laser-in-situ-keratomileusis-flap-creation-in-narrow-palpebral-fissure-eyes-without-suction
#18
John S M Chang, Antony K P Law, Jack C M Ng, May S Y Cheng
PURPOSE: To evaluate a surgical technique used in eyes with narrow palpebral fissure undergoing femtosecond laser flap creation without suction during laser in situ keratomileusis (LASIK). METHODS: All data of 2 patient groups were collected through chart review. Group 1 consisted of 6 eyes with narrow palpebral fissure in which the suction ring was manually fixated and femtosecond laser was applied accordingly. Thirty comparison cases were randomly drawn from among eyes that underwent a standard LASIK procedure matched for age and preoperative refraction (group 2)...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28689459/biomechanical-comparison-of-supraacetabular-external-fixation-and-anterior-pelvic-bridge-plating
#19
Ali Turgay Çavuşoğlu, Fatma Kübra Erbay, Mehmet Hakan Özsoy, Teyfik Demir
Unstable pelvic ring injuries are complex and risky injuries due to high morbidity and mortality. Although anterior pelvic external fixator is a suitable method for rapid stabilization of an injured pelvic ring, due to some disadvantages such as high complication rate, nerve damage, and difficulties of patient's mobility and comfort, there has recently been increased searching for alternative methods for stabilization of the pelvic ring. Pubic symphysis zone freely moves in pelvic models. This study aims to evaluate the biomechanical stability of anterior pelvic bridge plating and compare it with supraacetabular external fixators in an untreated unstable pelvic fracture model...
July 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28681229/late-reconstruction-of-severe-open-book-deformities-of-the-pelvis-tips-and-tricks
#20
Christian Fang, Hatem Alabdulrahman, Roman Pfeifer, Ivan S Tarkin, Hans-Christoph Pape
BACKGROUND: The primary goal of treatment for open book pelvic injuries after high-energy trauma is to control haemorrhage and to close the pelvic ring anatomically. Less commonly, patients may present late with malunion or non-union. METHODS: We reviewed five operatively treated patients with delayed severe open book deformities who had a diastasis of more than 6 cm. We describe the pre-operative workup, surgical strategy and challenges experienced. They specifically include: extensive scar and contracture formation, malunion, urogenital prolapse and difficult reduction of vertical shear element...
July 5, 2017: International Orthopaedics
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