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https://www.readbyqxmd.com/read/28633770/a-24-month-follow-up-of-a-custom-made-suture-button-assembly-for-syndesmotic-injuries-of-the-ankle
#1
Mohamed A Imam, Ahmed Matthana, Ji Wan Kim, Mohamed Nabil
In the present retrospective analysis, we introduce a custom suture-button fixation device for acute ankle syndesmotic injuries that allows for early weightbearing without another planned operation for hardware removal. We evaluated 87 consecutive ankles in 87 patients (49 males [56.32%] and 38 females [43.68%]). Of the 87 patients, 15 (17.24%) withdrew or were lost to follow-up, leaving 72 patients (82.76%) in the present study. Their mean age was 35.2 (range 17 to 67) years. Nineteen patients (26.39%) presented with a pure syndesmotic disruption, and 53 (73...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28631382/a-phase-ii-trial-evaluating-the-feasibility-of-adding-bevacizumab-to-standard-osteosarcoma-therapy
#2
Fariba Navid, Victor M Santana, Michael Neel, M Beth McCarville, Barry L Shulkin, Jianrong Wu, Catherine A Billups, Shenghua Mao, Vinay M Daryani, Clinton F Stewart, Michelle Kunkel, Wendene Smith, Deborah Ward, Alberto S Pappo, Armita Bahrami, David M Loeb, Jennifer Reikes Willert, Bhaskar N Rao, Najat C Daw
Increased vascular endothelial growth factor (VEGF) expression in osteosarcoma correlates with a poor outcome. We conducted a phase II trial to evaluate the feasibility and efficacy of combining bevacizumab, a monoclonal antibody against VEGF, with methotrexate, doxorubicin and cisplatin (MAP) in patients with localized osteosarcoma. Eligible patients received 2 courses of MAP chemotherapy before definitive surgery at week 10. Bevacizumab (15 mg/kg) was administered 3 days before starting chemotherapy then on day 1 of weeks 3 and 5 of chemotherapy...
June 20, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28630751/correction-manoeuvres-in-the-surgical-treatment-of-spinal-deformities
#3
Alpaslan Senkoylu, Mehmet Cetinkaya
Correction manoeuvres are as important as the other issues such as hardware selection, graft options, fusion and osteotomy techniques in the surgical treatment of spinal deformities.The property of materials demonstrating both viscous and elastic characteristics when undergoing deformation is called visco-elasticity. Purely elastic materials change in shape with a stress, and go back to their initial form when the stress is removed. However, visco-elastic materials, like the spine, may protect their new formation unless a back stress is applied...
May 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28622420/technical-note-comparison-of-megavoltage-dual-energy-and-single-energy-ct-based-%C3%AE-maps-for-a-4-channel-breast-coil-in-pet-mri
#4
John C Patrick, R Terry Thompson, Aaron So, John Butler, David Faul, Robert Z Stodilka, Slav Yartsev, Frank S Prato, Stewart Gaede
PURPOSE: The purpose of this study was to describe and evaluate methods for calculating a megavoltage computed tomography (MVCT) derived MR hardware attenuation map (μ-map) and dual-energy CT (DECT) for 511 keV photons. METHODS: Phantom measurements were acquired on a whole-body hybrid PET/MRI system, using a four-channel receive-only MR radiofrequency (RF) breast coil. Two acquisitions were performed: with the phantoms positioned in the four-channel RF breast coil, and without the breast coil...
June 16, 2017: Medical Physics
https://www.readbyqxmd.com/read/28610433/reoperation-rates-after-combined-anterior-cruciate-ligament-and-anterolateral-ligament-reconstruction-a-series-of-548-patients-from-the-santi-study-group-with-a-minimum-follow-up-of-2-years
#5
Mathieu Thaunat, Gilles Clowez, Adnan Saithna, Maxime Cavalier, Eric Choudja, Thais D Vieira, Jean-Marie Fayard, Bertrand Sonnery-Cottet
BACKGROUND: Early clinical results of anterolateral ligament (ALL) reconstruction are promising, but concerns exist due to high rates of complications after other types of lateral extra-articular tenodesis. The rate of surgery after combined anterior cruciate ligament (ACL) and ALL reconstruction is not known. PURPOSE: To determine the rate of reoperation after combined ACL and ALL reconstruction. STUDY DESIGN: Case series; Level of evidence, 4...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28595119/optimized-fast-mixing-device-for-real-time-nmr-applications
#6
Rémi Franco, Adrien Favier, Paul Schanda, Bernhard Brutscher
We present an improved fast mixing device based on the rapid mixing of two solutions inside the NMR probe, as originally proposed by Hore and coworkers (J. Am. Chem. Soc. 125 (2003) 12484-12492). Such a device is important for off-equilibrium studies of molecular kinetics by multidimensional real-time NMR spectrsocopy. The novelty of this device is that it allows removing the injector from the NMR detection volume after mixing, and thus provides good magnetic field homogeneity independently of the initial sample volume placed in the NMR probe...
May 31, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28585994/new-technique-for-removal-of-screws-with-damaged-heads
#7
Takahiro Iwata, Satoshi Nozawa, Masato Maeda, Haruhiko Akiyama
Removal of orthopedic implants may sometimes be difficult because of ongrowth of new bone. Titanium screws can become encased or stripped during the process of initial open reduction and internal fixation or at the time of hardware removal. Difficulty in removing screws from a locking plate is particularly well-known. Two patients with tibial and femoral diaphyseal fractures were treated using a locking plate or an intramedullary nail. However, after fracture healing, it was difficult to remove the locking screw or reconstruction screws because of damage to the heads...
June 6, 2017: Orthopedics
https://www.readbyqxmd.com/read/28584681/abdominal-pseudocyst-as-a-complication-of-ventriculoperitoneal-shunt-placement-review-of-the-literature-and-a-proposed-algorithm-for-treatment-using-4-illustrative-cases
#8
Samir Kashyap, Hammad Ghanchi, Tanya Minasian, Fanglong Dong, Dan Miulli
BACKGROUND: Ventriculoperitoneal (VP) shunt placement is one of the most commonly performed procedures in neurosurgery. One rare complication is the formation of an abdominal pseudocyst, which can cause shunt malfunction. CASE DESCRIPTIONS: We present four unique cases of abdominal pseudocyst formation. Our first patient initially presented with a right upper quadrant pseudocyst. Shunt was externalized and the distal end was revised with placement of catheter on the opposite side...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28579099/rapid-scan-epr-imaging
#9
Sandra S Eaton, Yilin Shi, Lukas Woodcock, Laura A Buchanan, Joseph McPeak, Richard W Quine, George A Rinard, Boris Epel, Howard J Halpern, Gareth R Eaton
In rapid-scan EPR the magnetic field or frequency is repeatedly scanned through the spectrum at rates that are much faster than in conventional continuous wave EPR. The signal is directly-detected with a mixer at the source frequency. Rapid-scan EPR is particularly advantageous when the scan rate through resonance is fast relative to electron spin relaxation rates. In such scans, there may be oscillations on the trailing edge of the spectrum. These oscillations can be removed by mathematical deconvolution to recover the slow-scan absorption spectrum...
July 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/28576702/operative-management-of-supracondylar-humeral-fractures-in-children-comparison-of-five-fixation-methods
#10
S Pesenti, A Ecalle, L Gaubert, E Peltier, E Choufani, E Viehweger, J-L Jouve, F Launay
BACKGROUND: The best method for stabilising supracondylar humeral fractures (SHFs) in children remains unclear. The objective of this study was to compare the outcomes of five different fixation methods for SHFs in children. HYPOTHESIS: Differences in intra-operative and short-term post-operative parameters can be demonstrated across different fixation methods for SHFs in children. PATIENTS AND METHODS: We reviewed the medical files of paediatric patients managed at our centre between 2006 and 2016 for SHF with major displacement (type 3 or 4 in the Lagrange-Rigault classification)...
May 30, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28567341/technical-note-anterior-cruciate-ligament-reconstruction-in-the-presence-of-an-intramedullary-femoral-nail-using-anteromedial-drilling
#11
Matthew Lacey, Joseph Lamplot, Kempland C Walley, Joseph P DeAngelis, Arun J Ramappa
AIM: To describe an approach to anterior cruciate ligament (ACL) reconstruction using autologous hamstring by drilling via the anteromedial portal in the presence of an intramedullary (IM) femoral nail. METHODS: Once preoperative imagining has characterized the proposed location of the femoral tunnel preparations are made to remove all of the hardware (locking bolts and IM nail). A diagnostic arthroscopy is performed in the usual fashion addressing all intra-articular pathology...
May 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28567222/comparison-of-the-extent-of-degeneration-among-the-normal-disc-immobilized-disc-and-immobilized-disc-with-an-endplate-fracture
#12
Wonki Choi, Sukkyun Song, Seungbum Chae, Sangbong Ko
BACKGROUND: This study attempts to prove a cause and effect relationship between spine immobilization following posterior fixation for unstable burst fractures and degeneration observed following hardware removal. METHODS: We enrolled 57 patients (259 intervertebral discs [IVDs]) who underwent only posterior instrumentation without fusion for thoracolumbar and lumbar unstable burst fractures. We arbitrarily named the IVD that has an endplate fracture after immobilization using pedicle screws as the fractured endplate and immobilized disc (FEID), the IVD that has no endplate fracture after immobilization using pedicle screws as the nonfractured endplate and immobilized disc (NFEID), and the IVD that has no endplate fracture and no immobilization instrumentation as the normal disc (ND)...
June 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28566776/infected-nonunion-of-tibia
#13
Milind Madhav Chaudhary
Infected nonunions of tibia pose many challenges to the treating surgeon and the patient. Challenges include recalcitrant infection, complex deformities, sclerotic bone ends, large bone gaps, shortening, and joint stiffness. They are easy to diagnose and difficult to treat. The ASAMI classification helps decide treatment. The nonunion severity score proposed by Calori measures many parameters to give a prognosis. The infection severity score uses simple clinical signs to grade severity of infection. This determines number of surgeries and allows choice of hardware, either external or internal for definitive treatment...
May 2017: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/28557557/subsequent-surgery-after-revision-anterior-cruciate-ligament-reconstruction-rates-and-risk-factors-from-a-multicenter-cohort
#14
David Y Ding, Alan L Zhang, Christina R Allen, Allen F Anderson, Daniel E Cooper, Thomas M DeBerardino, Warren R Dunn, Amanda K Haas, Laura J Huston, Brett Brick A Lantz, Barton Mann, Kurt P Spindler, Michael J Stuart, Rick W Wright, John P Albright, Annunziato Ned Amendola, Jack T Andrish, Christopher C Annunziata, Robert A Arciero, Bernard R Bach, Champ L Baker, Arthur R Bartolozzi, Keith M Baumgarten, Jeffery R Bechler, Jeffrey H Berg, Geoffrey A Bernas, Stephen F Brockmeier, Robert H Brophy, Charles A Bush-Joseph, J Brad Butler, John D Campbell, James L Carey, James E Carpenter, Brian J Cole, Jonathan M Cooper, Charles L Cox, R Alexander Creighton, Diane L Dahm, Tal S David, David C Flanigan, Robert W Frederick, Theodore J Ganley, Elizabeth A Garofoli, Charles J Gatt, Steven R Gecha, James Robert Giffin, Sharon L Hame, Jo A Hannafin, Christopher D Harner, Norman Lindsay Harris, Keith S Hechtman, Elliott B Hershman, Rudolf G Hoellrich, Timothy M Hosea, David C Johnson, Timothy S Johnson, Morgan H Jones, Christopher C Kaeding, Ganesh V Kamath, Thomas E Klootwyk, Bruce A Levy, C Benjamin Ma, G Peter Maiers, Robert G Marx, Matthew J Matava, Gregory M Mathien, David R McAllister, Eric C McCarty, Robert G McCormack, Bruce S Miller, Carl W Nissen, Daniel F O'Neill, Brett D Owens, Richard D Parker, Mark L Purnell, Arun J Ramappa, Michael A Rauh, Arthur C Rettig, Jon K Sekiya, Kevin G Shea, Orrin H Sherman, James R Slauterbeck, Matthew V Smith, Jeffrey T Spang, Steven J Svoboda, Timothy N Taft, Joachim J Tenuta, Edwin M Tingstad, Armando F Vidal, Darius G Viskontas, Richard A White, James S Williams, Michelle L Wolcott, Brian R Wolf, James J York
BACKGROUND: While revision anterior cruciate ligament reconstruction (ACLR) can be performed to restore knee stability and improve patient activity levels, outcomes after this surgery are reported to be inferior to those after primary ACLR. Further reoperations after revision ACLR can have an even more profound effect on patient satisfaction and outcomes. However, there is a current lack of information regarding the rate and risk factors for subsequent surgery after revision ACLR. PURPOSE: To report the rate of reoperations, procedures performed, and risk factors for a reoperation 2 years after revision ACLR...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28535525/expanded-hemodialysis-a-new-therapy-for-a-new-class-of-membranes
#15
Claudio Ronco, Gaetano La Manna
A wide spectrum of molecules is retained in end-stage kidney disease, normally defined as uremic toxins. These solutes have different molecular weights and radii. Current dialysis membranes and techniques only remove solutes in the range of 50-15,000 Da, with limited or no capability to remove solutes in the middle to high molecular weight range (up to 50,000 Da). Improved removal has been obtained with high cut-off (HCO) membranes, with albumin loss representing a limitation to their practical application...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28534192/nonunion-and-delayed-union-in-lateral-open-wedge-distal-femoral-osteotomies-a-legitimate-concern
#16
Franz Liska, Andreas Voss, Florian B Imhoff, Lukas Willinger, Andreas B Imhoff
INTRODUCTION: Due to a supposed high rate of nonunions in lateral open wedge distal femur osteotomy (LOWDFO), the medial closing wedge technique has been favoured for a long time. The aim of this study was to report the occurrence of delayed- and nonunions following LOWDFO. We hypothesized that the occurrence of nonunions needing revision surgery is comparable to medial closing osteotomies. METHODS: Forty-one patients were treated with LOWDFO with a minimum follow-up of 12 months...
May 23, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28530120/osteochondral-allograft-transplantation-and-opening-wedge-tibial-osteotomy-clinical-results-of-a-combined-single-procedure
#17
Albert C Hsu, Luis E P Tirico, Abraham G Lin, Pamela A Pulido, William D Bugbee
Objective To evaluate the outcome of patients who have undergone simultaneous osteotomy and osteochondral allograft (OCA) transplantation. Our hypothesis is that use of high tibial osteotomy and fresh OCA in a combined procedure is safe and effective without increasing morbidity in comparison to OCA alone. Design A case series of 17 patients underwent tibial osteotomy and simultaneous OCA during a single surgery. Osteotomy was indicated when axial alignment was within the affected compartment. Patients had a minimum of 2 years of follow-up after surgery...
May 1, 2017: Cartilage
https://www.readbyqxmd.com/read/28529014/comparative-prospective-study-between-medial-and-lateral-distal-tibial-locking-compression-plates-for-distal-third-tibial-fractures
#18
Sandeep Garg, Vikram Khanna, Mahaveer Prashad Goyal, Narendra Joshi, Amrut Borade, Ishan Ghuse
PURPOSE: Tibial fracture is the most common long bone fracture. Distal third tibial fractures are challenging though open reduction and plating can result in anatomical reduction and rigid fixation. This paper aimed to evaluate and compare the results of medial and lateral locking compression plates for distal third tibial fractures. METHODS: This prospective clinical study involved 36 patients with distal tibial fractures admitted in Department of Orthopaedics, Sawai Mansingh Medical College & Affiliated Hospital, Jaipur, India, from June 2011 to May 2012, including 29 closed fractures and 7 open fractures at the mean age of 38...
June 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28528049/an-old-solution-for-a-new-problem-eloesser-flap-management-of-infected-defibrillator-patches
#19
Heidi B Schubmehl, Huan Huan Sun, Jessica S Donington, Deane E Smith, Eugene A Grossi
Cardiac surgery patients with infected implantable cardioverter defibrillator hardware face high morbidity with both surgical and nonoperative management options. We present a case of infected epicardial patch defibrillator leads in a patient with prohibitively high risk of death with open surgical removal. As a less morbid alternative, an Eloesser flap was used to convert his presenting mediastinal empyema necessitans into a chronic, manageable wound.
June 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28523340/patient-and-surgical-characteristics-that-affect-revision-risk-in-dynamic-intraligamentary-stabilization-of-the-anterior-cruciate-ligament
#20
Philipp Henle, Kathrin S Bieri, Manuel Brand, Emin Aghayev, Jessica Bettfuehr, Janosch Haeberli, Martina Kess, Stefan Eggli
PURPOSE: Failure of dynamic intraligamentary stabilization (DIS) that requires revision surgery of the anterior cruciate ligament (ACL) has not been studied. The aim of this study was to investigate the incidence of revision ACL surgery, and the patient characteristics and surgery-related factors that are associated with an increased risk of ACL revision after DIS. METHODS: This study analysed a prospective, consecutively documented single-centre case series using standardized case report forms over a 2...
May 18, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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