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https://www.readbyqxmd.com/read/27903929/a-comparison-of-outcomes-of-particulated-juvenile-articular-cartilage-and-bone-marrow-aspirate-concentrate-for-articular-cartilage-lesions-of-the-talus
#1
Nathan S Lanham, John J Carroll, Minton T Cooper, Venkat Perumal, Joseph S Park
Background Articular cartilage lesions of the talus remain a challenging clinical problem because of the lack of natural regeneration and limited treatment options. Microfracture is often the first-line therapy, however lesions larger than 1.5 cm(2) have been shown to not do as well with this treatment method. Methods The objective of this retrospective study was to evaluate the outcomes of iliac crest bone marrow aspirate concentrate/collagen scaffold (ICBMA) and particulated juvenile articular cartilage (PJAC) for larger articular cartilage lesions of the talus...
November 30, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27900268/management-of-syndesmotic-injuries-what-is-the-evidence
#2
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/27890337/a-double-button-adjustable-loop-device-is-biomechanically-equivalent-to-tension-band-wire-in-the-fixation-of-transverse-patellar-fractures-a-cadaveric-study
#3
Fucai Han, Christopher Jon Pearce, David Q K Ng, Amit K Ramruttun, Desmond Y R Chong, Diarmuid Murphy, Chin Tat Lim, Bernard C S Lee
INTRODUCTION: Tension-band wire fixation of patellar fractures is associated with significant hardware-related complications and infection. Braided polyester suture fixation is an alternative option. However, these suture fixations have higher failure rates due to the difficulty in achieving rigid suture knot fixation. The Arthrex syndesmotic TightRope, which is a double-button adjustable loop fixation device utilizing a 4-point locking system using FibreWire, may not only offer stiff rigid fixation using a knotless system, but may also obviate the need for implant removal due to hardware related problems...
November 17, 2016: Injury
https://www.readbyqxmd.com/read/27886089/representation-method-for-spectrally-overlapping-signals-in-flow-cytometry-based-on-fluorescence-pulse-time-delay-estimation
#4
Wenchang Zhang, Xiaoping Lou, Xiaochen Meng, Lianqing Zhu
Flow cytometry is being applied more extensively because of the outstanding advantages of multicolor fluorescence analysis. However, the intensity measurement is susceptible to the nonlinearity of the detection method. Moreover, in multicolor analysis, it is impossible to discriminate between fluorophores that spectrally overlap; this influences the accuracy of the fluorescence pulse signal representation. Here, we focus on spectral overlap in two-color analysis, and assume that the fluorescence follows the single exponential decay model...
November 23, 2016: Sensors
https://www.readbyqxmd.com/read/27875515/reconstruction-of-congenital-mandibular-hypoplasia-with-microvascular-free-fibula-flaps-in-the-pediatric-population-a-paradigm-shift
#5
Emily C Cleveland, Jamie Zampell, Tomer Avraham, Z-Hye Lee, David Hirsch, Jamie P Levine
BACKGROUND: The microvascular free fibula flap has become the gold standard for reconstruction of complex mandibular defects since its description by Hidalgo in 1989. Prior studies have demonstrated its safety and efficacy in the pediatric population. However, this reconstructive method is often used only as a last resort for correction of congenital mandibular hypoplasia, after failure of bone grafting and distraction osteogenesis. The authors describe our experience using this technique, facilitated by virtual planning and prefabricated cutting jigs, for children with severe congenital mandibular hypoplasia...
November 21, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27870672/the-clinical-and-economic-impact-of-generic-locking-plate-utilization-at-a-level-ii-trauma-center
#6
Austin Mcphillamy, Taylor P Gurnea, Alastair E Moody, Christopher G Kurnik, Minggen Lu
OBJECTIVES: In today's climate of cost containment and fiscal responsibility, generic implant alternatives represent an interesting area of untapped resources. As patents have expired on many commonly used trauma implants, generic alternatives have recently become available from a variety of sources. The purpose of this study was to examine the clinical and economic impact of a cost containment program using high quality, generic orthopaedic locking plates. The implants available for study were anatomically precontoured plates for the clavicle, proximal humerus, distal radius, proximal tibia, distal tibia, and distal fibula...
December 2016: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/27866887/quality-of-early-union-after-first-metatarsophalangeal-joint-arthrodesis
#7
Florian Wanivenhaus, Norman Espinosa, Philippe M Tscholl, Fabian Krause, Stephan H Wirth
The aim of the present retrospective cohort study was to assess the quality of union and the clinical outcomes in patients who had undergone first metatarsophalangeal joint (MTPJ) fusion using a dorsal plate and plantar lag screw. From March 2011 to December 2012, the clinical and radiographic data of 39 patients (41 feet) who had undergone first MTPJ fusion using a compressive locking plate were retrospectively reviewed. All patients had undergone postoperative computed tomography at 6 weeks postoperatively to assess union...
November 17, 2016: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/27858227/plug-play-brain-computer-interfaces-for-effective-active-and-assisted-living-control
#8
Niccolò Mora, Ilaria De Munari, Paolo Ciampolini, José Del R Millán
Brain-Computer Interfaces (BCI) rely on the interpretation of brain activity to provide people with disabilities with an alternative/augmentative interaction path. In light of this, BCI could be considered as enabling technology in many fields, including Active and Assisted Living (AAL) systems control. Interaction barriers could be removed indeed, enabling user with severe motor impairments to gain control over a wide range of AAL features. In this paper, a cost-effective BCI solution, targeted (but not limited) to AAL system control is presented...
November 17, 2016: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/27851995/key-clinical-benefits-of-neuroimaging-at-7t
#9
Siegfried Trattnig, Elisabeth Springer, Wolfgang Bogner, Gilbert Hangel, Bernhard Strasser, Barbara Dymerska, Pedro Lima Cardoso, Simon Daniel Robinson
The growing interest in ultra-high field MRI, with more than 35.000 MR examinations already performed at 7T, is related to improved clinical results with regard to morphological as well as functional and metabolic capabilities. Since the signal-to-noise ratio increases with the field strength of the MR scanner, the most evident application at 7T is to gain higher spatial resolution in the brain compared to 3T. Of specific clinical interest for neuro applications is the cerebral cortex at 7T, for the detection of changes in cortical structure, like the visualization of cortical microinfarcts and cortical plaques in Multiple Sclerosis...
November 13, 2016: NeuroImage
https://www.readbyqxmd.com/read/27847665/an-unusual-and-complicated-course-of-a-giant-cell-tumor-of-the-capitate-bone
#10
Ingo Schmidt
A 51-year-old female patient presented with a carpal giant cell tumor (GCT) of the right capitate bone. The lesion was initially misdiagnosed as having an osteomyelitis. First, the diagnosis of a benign GCT was confirmed by histological examination. Second, an intralesional curettage and packing of the cavity with cancellous iliac crest bone grafts combined with a fusion of the third carpometacarpal (CMC III) joint were carried out. Third, due to a secondary midcarpal osteoarthritis and a secondary scaphoid nonunion, the CMC III joint fusion plate was removed and the midcarpal joint completely excised...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27843683/spinal-neuromodulation-as-a-novel-surgical-option-for-failed-back-surgery-syndrome-following-rhbmp-exuberant-bony-growth-in-instrumented-lumbar-fusion-a-case-report-and-literature-review
#11
Ramsis F Ghaly, Alexei Lissounov, Tatiana Tverdohleb, David Kohanchi, Kenneth D Candido, Nebojsa Nick Knezevic
BACKGROUND: Bone morphogenic protein (BMP) for instrumented lumbar fusion was approved in 2002, and since then has led to an increasing incidence of BMP-related neuropathic pain. These patients are usually resistant to conventional medical therapy and frequently undergo multiple surgical revisions without any pain relief. CASE DESCRIPTION: A 58-year-old male was referred to the author's outpatient clinic after four lumbar surgeries did not provide satisfactory pain relief...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27831975/long-term-outcomes-of-pediatric-cranial-reconstruction-using-resorbable-plating-systems-for-the-treatment-of-craniosynostosis
#12
Leslie G Branch, Clayton Crantford, Teresa Cunningham, Gaurav Bharti, James Thompson, Dan Couture, Lisa R David
BACKGROUND: Resorbable plating in cranial reconstruction for craniosynostosis has fewer reported complications than rigid hardware. Few long-term outcome studies exist for pediatric patients treated with this technology for cranial vault reconstruction. METHODS: A retrospective review was performed on pediatric patients undergoing cranial vault reconstruction for craniosynostosis by 3 surgeons over a 15-year period. MacroPore (Cytori Therapeutics, San Diego, CA) or Lactosorb (Walter Lorenz Surgical Inc, Jacksonville, FL), composed of polyglycolic and polylactic acids, was used for resorbable plate fixation...
November 9, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27828118/rectification-of-curved-document-images-based-on-single-view-three-dimensional-reconstruction
#13
Lai Kang, Yingmei Wei, Jie Jiang, Liang Bai, Songyang Lao
Since distortions in camera-captured document images significantly affect the accuracy of optical character recognition (OCR), distortion removal plays a critical role for document digitalization systems using a camera for image capturing. This paper proposes a novel framework that performs three-dimensional (3D) reconstruction and rectification of camera-captured document images. While most existing methods rely on additional calibrated hardware or multiple images to recover the 3D shape of a document page, or make a simple but not always valid assumption on the corresponding 3D shape, our framework is more flexible and practical since it only requires a single input image and is able to handle a general locally smooth document surface...
October 1, 2016: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/27826903/bone-lengthening-bridging-joints-soft-tissue-releases-physiotherapy
#14
REVIEW
Franck Launay, Sébastien Pesenti
When we lengthen a bone in a child, the parents and the family circle are often obsessed by the amount a lengthening obtained. However, for the surgeon, lengthen a bone is quite pretty easy, but dealing with the joints above and below the lengthening area can be very challenging. Indeed, during the lengthening process, muscles and tendons will be progressively stretched, leading to potential joint contracture or even dislocation. The objective of the surgeon will be to avoid this situation. The first mean at disposal is the physiotherapy in order to help the joints to be more supple and to maintain their range of motion...
November 8, 2016: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/27819005/is-hardware-removal-recommended-after-ankle-fracture-repair
#15
Hong-Geun Jung, Jin-Il Kim, Jae-Yong Park, Jong-Tae Park, Joon-Sang Eom, Dong-Oh Lee
The indications and clinical necessity for routine hardware removal after treating ankle or distal tibia fracture with open reduction and internal fixation are disputed even when hardware-related pain is insignificant. Thus, we determined the clinical effects of routine hardware removal irrespective of the degree of hardware-related pain, especially in the perspective of patients' daily activities. This study was conducted on 80 consecutive cases (78 patients) treated by surgery and hardware removal after bony union...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27818869/nonuniformity-correction-algorithm-with-efficient-pixel-offset-estimation-for-infrared-focal-plane-arrays
#16
Tomasz Orżanowski
This paper presents an infrared focal plane array (IRFPA) response nonuniformity correction (NUC) algorithm which is easy to implement by hardware. The proposed NUC algorithm is based on the linear correction scheme with the useful method of pixel offset correction coefficients update. The new approach to IRFPA response nonuniformity correction consists in the use of pixel response change determined at the actual operating conditions in relation to the reference ones by means of shutter to compensate a pixel offset temporal drift...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27798715/descending-geniculate-artery-pseudoaneurysm-following-tibial-plateau-fracture
#17
Charles A Cefalu, Thomas P Royals, Peter C Krause
Pseudoaneurysms are uncommon in patients with trauma, but can cause diagnostic difficulty and result in significant morbidity. Etiologies range from penetrating and nonpenetrating trauma to operative injury during fracture fixation, arthroscopy, total joint arthroplasty, and hardware loosening and removal. Pseudoaneurysms can conspicuously present as a pulsatile mass with an audible bruit, or as a subtly expanding hematoma. In either case, the complications can be serious if diagnosed late. The authors report a case of a pseudoaneurysm arising from the descending geniculate artery following a tibial plateau fracture...
October 31, 2016: Orthopedics
https://www.readbyqxmd.com/read/27780508/external-fixation-versus-open-reduction-and-internal-fixation-for-tibial-pilon-fractures-a-meta-analysis-based-on-observational-studies
#18
Yi-Chen Meng, Xu-Hui Zhou
PURPOSE: Tibial pilon fractures remain challenging for an orthopaedic surgeon to repair. External fixation (ExFix) and open reduction and internal fixation (ORIF) are two widely used methods for repairing tibial pilon fractures. However, conclusions of comparative studies regarding which method is superior are controversial. Our aim is to compare ORIF and ExFix and clarify which method is better in terms of reduction and union results and major complications. METHODS: A computerized research of MEDLINE, EMBASE, Springer, and Cochrane Library (before December 2014) for studies of any design comparing ORIF and ExFix was conducted...
October 1, 2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/27779300/-results-of-vagal-nerve-stimulation-in-patients-with-pharmacoresistant-epilepsy-in-a-national-epilepsy-referral-centre
#19
P Roldan-Ramos, L A Reyes-Figueroa, J Rumia, E Martinez-Lizana, A Donaire, M Carreno-Martinez
AIM: To describe clinical results and complications derived from vagal nerve stimulation therapy in drug resistant epileptic patients unsuitable for other surgical treatments, since the first implant in an epilepsy national referral centre. PATIENTS AND METHODS: A retrospective analysis of the patients implanted in our centre was held. Data related to baseline characteristics of their epilepsy and therapy complications was collected. RESULTS: 32 new implants in 31 patients are included, mean age of 34 years, 29...
November 1, 2016: Revista de Neurologia
https://www.readbyqxmd.com/read/27777819/influence-of-plate-size-and-design-upon-healing-of-ulna-shortening-osteotomies
#20
Anna Jungwirth-Weinberger, Paul Borbas, Andreas Schweizer, Ladislav Nagy
Purpose Ulna-shortening osteotomy is one of the most established and most frequent operations in hand surgery. However, bone union is not always achieved and the use of plates implies potential risks and problems. The traditional points of criticism are the duration of bone healing, the incidence of nonunion, and the necessity of hardware removal due to the soft tissue irritation by the plate or the screws. These shortcomings have been addressed by an increasing standardization of the procedure and finally specific instruments and implants...
November 2016: Journal of Wrist Surgery
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