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External fixation

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https://www.readbyqxmd.com/read/27933259/deformity-correction-and-extremity-lengthening-in-the-lower-leg-comparison-of-clinical-outcomes-with-two-external-surgical-procedures
#1
Eugen Reitenbach, Robert Rödl, Georg Gosheger, Björn Vogt, Frank Schiedel
OBJECTIVE: Distraction osteogenesis is a method of stimulating the growth of new bone tissue in order to lengthen the extremities or bridge resected bone defects. In addition to the now-established intramedullary procedures, two different fixator systems are in use. The present study investigated the classical Ilizarov ring fixator (IRF) and a hexapod to assess the precision of lower-leg lengthening and complications classified using the Paley criteria for problems, obstacles, and complications...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27931635/complications-of-percutaneous-endoscopic-gastrostomy
#2
REVIEW
Tomas Hucl, Julius Spicak
Percutaneous endoscopic gastrostomy (PEG) has become the method of choice for mid-to long-term enteral feeding. The majority of complications that occur are minor, but the rare major complications may be life threatening. Some complications occur soon after tube placement, others develop later, when the gastrostomy tract has matured. Older patients with comorbidities and infections appear to be at a greater risk of developing complications. Apart from being aware of indications and contraindications, proper technique of PEG placement, including correct positioning of the external fixation device, and daily tube care are important preventive measures...
October 2016: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/27929693/use-of-recycled-external-fixators-in-management-of-compound-injuries
#3
Swagat Mahapatra, Nandakumar Rengarajan
BACKGROUND: Compound fractures form a bulk of Orthopaedic Trauma cases in a developing country like India. External Fixation devices are the mainstays of treatment of these open fractures. They are generally used as a one use disposable device and add a great burden to the health care costs, especially in a developing country. In our study we evaluated the efficacy and complication rate of recycled external fixators with that of new external fixators. MATERIALS AND METHODS: This was a prospective randomised interventional study conducted in a tertiary care teaching hospital of a developing country...
December 8, 2016: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/27922956/the-complicated-facial-war-injury-pitfalls-and-mismanagement
#4
Ghassan S Abu-Sittah, Joe Baroud, Christopher Hakim, Cynthia Wakil
OBJECTIVE: The aim of this paper is to share the authors' experience in the management of complicated facial war injuries using free tissue transfer. A discussion on the most commonly encountered pitfalls in management during the acute and complicated settings is presented in an effort to raise insight on facial war wound complications. METHODOLOGY: Two patients of complicated facial war injuries are presented to exemplify the pitfalls in acute and chronic management of the mandibular region in the first patient and the orbito-maxillary region in the second...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27919511/metaphyseal-locking-plate-as-an-external-fixator-for-open-tibial-fracture-clinical-outcomes-and-biomechanical-assessment
#5
Ching-Hou Ma, Chin-Hsien Wu, Jiun-Ru Jiang, Yuan-Kun Tu, Ting-Sheng Lin
OBJECTIVE: This study aimed to evaluate the outcome of using a metaphyseal locking plate as a definitive external fixator for treating open tibial fractures based on biomechanical experiments and analysis of clinical results. METHODS: A metaphyseal locking plate was used as an external fixator in 54 open tibial fractures in 52 patients. The mean follow-up was 38 months (range, 20-52 months). Moreover, static axial compression and torsional tests were performed to evaluate the strength of the fixation techniques...
November 29, 2016: Injury
https://www.readbyqxmd.com/read/27917329/minimally-invasive-treatment-of-tibial-pilon-fractures-through-arthroscopy-and-external-fixator-assisted-reduction
#6
Huasong Luo, Liaobin Chen, Kebin Liu, Songming Peng, Jien Zhang, Yang Yi
OBJECTIVE: The aim of this study was to evaluate the clinical outcome of tibial pilon fractures treated with arthroscopy and assisted reduction with an external fixator. METHODS: Thirteen patients with tibial pilon fractures underwent assisted reduction for limited lower internal fixation with an external fixator under arthroscopic guidance. The weight-bearing time was decided on the basis of repeat radiography of the tibia 3 months after surgery. Postoperative ankle function was evaluated according to the Mazur scoring system...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27916560/thinning-of-articular-cartilage-after-joint-unloading-or-immobilization-an-experimental-investigation-of-the-pathogenesis-in-mice
#7
Masato Nomura, Naoyoshi Sakitani, Hiroyuki Iwasawa, Yuta Kohara, Shoko Takano, Yoshio Wakimoto, Hiroshi Kuroki, Hideki Moriyama
OBJECTIVE: Moderate mechanical stress generated by normal joint loading and movement is essential for the maintenance of healthy articular cartilage. However, the effects of reduced loading caused by the absence of weight bearing or joint motion on articular cartilage and subchondral bone is still poorly understood. We aimed to characterize morphological and metabolic responses of articular cartilage and subchondral bone to decreased mechanical stress in vivo. METHODS: Mice were subjected to periods of hindlimb unloading by tail suspension or external fixation of the knee joints...
December 1, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27910709/management-of-infections-associated-with-neurosurgical-implanted-devices
#8
Anna Conen, Christoph A Fux, Peter Vajkoczy, Andrej Trampuz
Neurosurgical devices are increasingly used. With it, neurosurgical device-related infections gain relevance. As biofilms are involved in implant-associated infections the diagnosis and treatment is challenging and requires specific anti-biofilm concepts and management algorithms. Areas covered: The literature concerning the management of neurosurgical device-associated infections is scarce and heterogeneous treatment concepts are discussed, but no standardized diagnostic and treatment procedures exist. Therefore, we emphasize extrapolating management strategies predominantly from orthopedic device-associated infections, where the concept is better established and clinically validated...
December 2, 2016: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/27908742/arthroscopic-arthrodesis-of-the-shoulder-in-brachial-plexus-palsy
#9
Hubert Lenoir, Thomas Williams, Aude Griffart, Cyril Lazerges, Michel Chammas, Bertrand Coulet, Dominique Le Nen
BACKGROUND: Shoulder arthroscopic arthrodesis is an uncommon and non-standardized procedure. Results are poorly evaluated. We describe the findings in 8 patients who underwent shoulder arthroscopic arthrodesis for brachial plexus injury. METHODS: The humeral head and glenoid were excised through standard arthroscopic portals. A Hoffmann external fixator and cannulated screws were used to stabilize the shoulder. Standard clinical assessment and radiographic evaluation were performed each month until bony fusion occurred...
November 28, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27907934/restriction-of-postoperative-joint-loading-in-a-murine-model-of-anterior-cruciate-ligament-reconstruction-botulinum-toxin-paralysis-and-external-fixation
#10
Amir Lebaschi, Xiang-Hua Deng, Nathan W Coleman, Christopher L Camp, Jianchun Zong, Andrew Carbone, Camila B Carballo, Guang-Ting Cong, Zoe M Album, Scott A Rodeo
Control of knee motion in small animal models is necessary to study the effect of mechanical load on the healing process. This can be especially challenging in mice, which are being increasingly used for various orthopedic reconstruction models. We explored the feasibility of botulinum toxin (Botox; Allergan, Dublin, Ireland) paralysis and a newly designed external fixator to restrict motion of the knee in mice undergoing anterior cruciate ligament (ACL) reconstruction. Nineteen C57BL/6 mice were allocated to two groups: (1) Botox group (n = 9) and (2) external fixator group (n = 10)...
December 1, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27904729/treatment-of-late-onset-legg-calve-perthes-disease-by-arthrodiastasis
#11
Sung Soo Kim, Chan Woo Lee, Hyeon Jun Kim, Hyun Ho Kim, Lih Wang
BACKGROUND: To evaluate the efficacy of arthrodiastasis for Legg-Calve-Perthes disease. METHODS: Arthrodiastasis was conducted using external fixator devices (Orthofix) in 7 patients at least 8 years of age with a diagnosis of Legg-Calve-Perthes disease. The average follow-up was 80 months (range, 32 to 149 months), and their average age was 9.1 years (range, 8 to 12 years). The results of treatment were evaluated by measuring the degree of hip pain and the range of motion of the hip at 6 months after the operation and comparing the values with preoperative measurements...
December 2016: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/27904227/synostosis-of-proximal-phalangeal-bases-for-loss-of-distal-metacarpal
#12
Pankaj Jindal
A finger rendered unstable due to loss of metacarpal head can be stabilized by creating a synostosis at the base of the proximal phalanx of the affected finger with the adjacent normal finger. A cortico cancellous graft bridges the two adjacent proximal phalanges at their bases which are temporarily stabilized with an external fixator. The procedure can be done for, recurrence of giant cell tumor of metacarpal and for traumatic metacarpal loss. The procedure and long term follow up of one patient is presented who had giant cell tumor...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27904219/results-of-a-compression-pin-alongwith-trochanteric-external-fixation-in-management-of-high-risk-elderly-intertrochanteric-fractures
#13
Aydın Arslan, Ali Utkan, Tuba Tulay Koca
BACKGROUND: External fixation is a well-known procedure for the management of intertrochanteric fractures in very elderly high-risk patients. A new compression pin that can be adapted to all fixators was designed to provide inter fragmentary compression. In the present study, its effects on the fracture stability and healing were evaluated. MATERIALS AND METHODS: Thirty-one patients treated using compression pin and thirty-six patients treated using standard pins were evaluated retrospectively between January 2009 and July 2014...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27900703/the-treatment-of-distal-third-humeral-diaphyseal-fractures-is-there-still-a-place-for-the-external-fixation
#14
N Tartaglia, G Vicenti, M Carrozzo, A Abate, F Rifino, G Picca, G Solarino, B Moretti
INTRODUCTION: The treatment for humeral diaphyseal fractures is still controversial. The purpose of this study was to evaluate the clinical and radiographic outcomes of treating humeral distal third diaphyseal fractures by using external fixation technique. MATERIALS AND METHODS: We retrospectively review 65 cases of diaphyseal humeral fractures (31 type A, 23 type B and 11 type C of the AO/OTA classification) treated with external fixation (Orthofix FAD small) between 2008 and 2013...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27900307/arthroscopic-fixation-of-coronoid-process-fractures-through-coronoid-tunnelling-and-capsular-plication
#15
Paolo Arrigoni, Riccardo D'Ambrosi, Davide Cucchi, Simone Nicoletti, Enrico Guerra
PURPOSE: the purpose of this study is to describe a new arthroscopic technique for reduction and fixation of coronoid process fractures (CPFs) and report clinical and functional results in 4 patients after a 24-month follow-up. METHODS: four patients underwent arthroscopic reduction and fixation of isolated CPFs (acute or non-unions, type I or type II according to the Regan-Morrey classification) performed using a new technique based on coronoid tunnelling and capsular plication...
July 2016: Joints
https://www.readbyqxmd.com/read/27900268/management-of-syndesmotic-injuries-what-is-the-evidence
#16
REVIEW
Marc Schnetzke, Sven Y Vetter, Nils Beisemann, Benedict Swartman, Paul A Grützner, Jochen Franke
Ankle fractures are accompanied by a syndesmotic injury in about 10% of operatively treated ankle fractures. Usually, the total rupture of the syndesmotic ligaments with an external rotation force is associated with a Weber type B or C fracture or a Maisonneuve fracture. The clinical assessment should consist of a comprehensive history including mechanism of injury followed by a specific physical examination. Radiographs, and if in doubt magnetic resonance imaging, are needed to ascertain the syndesmotic injury...
November 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/27900266/ankle-arthrodesis-a-systematic-approach-and-review-of-the-literature
#17
REVIEW
Youichi Yasui, Charles P Hannon, Dexter Seow, John G Kennedy
Ankle arthrodesis is a common treatment used for patients with end-stage ankle arthritis (ESAA). The surgical goal of ankle arthrodesis is to obtain bony union between the tibia and talus with adequate alignment [slight valgus (0°-5°)], neutral dorsiflexion, and slight external rotation positions) in order to provide a pain-free plantigrade foot for weightbearing activities. There are many variations in operative technique including deferring approaches (open or arthroscopic) and differing fixation methods (internal or external fixation)...
November 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/27899536/a-comprehensively-curated-genome-scale-two-cell-model-for-the-cyanobacterium-anabaena-sp-pcc-7120
#18
David Malatinszky, Ralf Steuer, Patrik R Jones
Anabaena sp. PCC 7120 is a nitrogen-fixing filamentous cyanobacterium. Under nitrogen limiting conditions, a fraction of the vegetative cells in each filament terminally differentiate to non-growing heterocysts. Heterocysts are metabolically and structurally specialized to enable O2-sensitive nitrogen fixation. The functionality of the filament, as an association of vegetative cells and heterocysts, is postulated to depend on metabolic exchange of electrons, carbon and fixed nitrogen. In the present work, we compile and evaluate a comprehensive curated stoichiometric model of this two-cell system, with the objective function based on the growth of the filament under diazotrophic conditions...
November 29, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27898193/modeling-long-term-changes-in-tundra-carbon-balance-following-wildfire-climate-change-and-potential-nutrient-addition
#19
Yueyang Jiang, Edward B Rastetter, Gaius R Shaver, Adrian V Rocha, Qianlai Zhuang, Bonnie L Kwiatkowski
To investigate the underlying mechanisms that control long-term recovery of tundra carbon (C) and nutrients after fire, we employed the Multiple Element Limitation (MEL) model to simulate 200-yr post-fire changes in the biogeochemistry of three sites along a burn severity gradient in response to increases in air temperature, CO2 concentration, nitrogen (N) deposition, and phosphorus (P) weathering rates. The simulations were conducted for severely burned, moderately burned, and unburned arctic tundra. Our simulations indicated that recovery of C balance after fire was mainly determined by the internal redistribution of nutrients among ecosystem components (controlled by air temperature), rather than the supply of nutrients from external sources (e...
August 4, 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27896704/external-and-internal-compressions-to-retrieve-a-kinked-catheter-in-the-right-brachial-artery
#20
Keisuke Nakabayashi, Naomi Kawakatsu, Naomi Nakazawa, Toshiaki Suzuki, Hisayuki Okada, Toshiaki Oka
Kinking of the catheter due to excessive rotation is not a rare complication. However, percutaneous retrieval of a kinked catheter can be difficult. The key to bailout is fixation of the catheter tip. Herein, we present a 78-year-old woman who had this complication during transradial angiography. Retrieval using several previously reported techniques was unsuccessful. We finally retrieved the kinked catheter by fixing the tip of the catheter, using external and internal compressions. The former comprises manual compression on the axillary artery, while the latter comprises deployment of a balloon catheter via another puncture site...
November 28, 2016: Cardiovascular Intervention and Therapeutics
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