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https://www.readbyqxmd.com/read/29911132/the-clinical-outcome-of-one-stage-high-tibial-osteotomy-and-anterior-cruciate-ligament-reconstruction-a-current-concept-systematic-and-comprehensive-review
#1
REVIEW
Michael-Alexander Malahias, Omid Shahpari, Maria-Kyriaki Kaseta
Background: Patients with an anterior cruciate ligament-deficient varus-angulated knee may need not only an isolated high tibial osteotomy (HTO), but also an additional anterior cruciate ligament reconstruction (ACLR). A number of prospective clinical trials have been published considering the combination of HTO and ACL reconstruction. Our aim was to investigate whether one-stage combined HTO and ACL reconstruction is an effective, well-established technique with long-term results in the treatment of varus-angulated knees with ACL deficiency...
May 2018: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29862834/cartilage-quality-dgemric-index-following-knee-joint-distraction-or-high-tibial-osteotomy
#2
Nick J Besselink, Koen L Vincken, L Wilbert Bartels, Ronald J van Heerwaarden, Arno N Concepcion, Anne C A Marijnissen, Sander Spruijt, Roel J H Custers, Jan-Ton A D van der Woude, Karen Wiegant, Paco M J Welsing, Simon C Mastbergen, Floris P J G Lafeber
Objective High tibial osteotomy (HTO) and knee joint distraction (KJD) are treatments to unload the osteoarthritic (OA) joint with proven success in postponing a total knee arthroplasty (TKA). While both treatments demonstrate joint repair, there is limited information about the quality of the regenerated tissue. Therefore, the change in quality of the repaired cartilaginous tissue after KJD and HTO was studied using delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC). Design Forty patients (20 KJD and 20 HTO), treated for medial tibiofemoral OA, were included in this study...
June 1, 2018: Cartilage
https://www.readbyqxmd.com/read/29804186/retro-tubercular-gap-widening-can-be-caused-by-inappropriate-anterior-osteotomy-and-large-opening-gap-in-the-medial-biplanar-open-wedge-hto
#3
In Ho Jo, O-Sung Lee, Seung Hoon Lee, Kyung Wook Kim, Yong Seuk Lee
PURPOSE: The purpose of this study was to investigate the causes of retro-tubercular gap widening and to confirm whether this widened gap causes instability of the osteotomy configuration during open-wedge high tibial osteotomy (OWHTO). METHODS: Operative records and radiologic findings of patients who underwent biplanar medial OWHTO between 2014 and 2016 were retrospectively evaluated. To identify the osteotomy configuration including lateral hinge fracture, postoperative simple radiographs and CT images were analyzed...
May 26, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29803187/transplantation-crisis-at-the-time-of-economic-recession-in-greece
#4
E Giorgakis, A L Singer, S E Khorsandi, A Prachalias
OBJECTIVES: Aim of the study was to assess the effect of economic recession on organ donation and transplantation in Greece. METHODS: Retrospective data (2002-2016) provided by the Hellenic Transplant Organization (HTO), International Registry in Organ Donation and Transplantation, Eurotransplant, Scandiatransplant, National Health Service Blood and Transplant (NHSBT), and United Network of Organ Sharing (UNOS) databases were analyzed. HTO database was divided into the precrisis (2002-2008) and crisis (2009-2016) era...
May 23, 2018: Public Health
https://www.readbyqxmd.com/read/29802281/laser-scribed-graphene-cathode-for-next-generation-of-high-performance-hybrid-supercapacitors
#5
Seung-Hwan Lee, Jin Hyeon Kim, Jung-Rag Yoon
Hybrid supercapacitors have been regarded as next-generation energy storage devices due to their outstanding performances. However, hybrid supercapacitors remain a great challenge to enhance the energy density of hybrid supercapacitors. Herein, a novel approach for high-energy density hybrid supercapacitors based on a laser scribed graphene cathode and AlPO4 -carbon hybrid coated H2 Ti12 O25 (LSG/H-HTO) was designed. Benefiting from high-energy laser scribed graphene and high-power H-HTO, it was demonstrated that LSG/H-HTO delivers superior energy and power densities with excellent cyclability...
May 25, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29788992/comparing-case-control-study-for-treatment-of-proximal-tibia-fractures-with-a-complete-metaphyseal-component-in-two-centers-with-different-distinct-strategies-fixation-with-ilizarov-frame-or-locking-plates
#6
Haakon Berven, Michael Brix, Kaywan Izadpanah, Eva Johanna Kubosch, Hagen Schmal
BACKGROUND: The purpose of this study was to compare two methods of stabilization for proximal tibia fractures (AO 41) with a complete metaphyseal component, external fixation with the Ilizarov wire frame, and internal fixation with locking plates. METHODS: Patients from two level 1 trauma centers treated between 2009 and 2015 were included in a retrospective comparing cohort study. The first center stabilized the non-pathological, proximal tibia fractures exclusively with external fixation and the second with internal plating...
May 22, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29785447/posterior-cortical-breakage-leads-to-posterior-tibial-slope-change-in-lateral-hinge-fracture-following-opening-wedge-high-tibial-osteotomy
#7
Sung-Sahn Lee, Kyung-Wook Nha, Dae-Hee Lee
PURPOSE: This study was designed to analyze the relationship between changes in posterior tibial slope and the absence or presence of lateral hinge fracture, diagnosed in the sagittal and axial planes, as well as the coronal plane, by computed tomography (CT) following opening wedge high tibial osteotomy (HTO). METHODS: This study involved 55 patients (55 knees) undergoing opening wedge HTO for primary medial osteoarthritis. Lateral hinge fractures were evaluated on CT scans according to the Takeuchi classification and were also classified as subtypes A, B, and C, depending on anterior, posterior, and both anterior and posterior cortical disruptions, respectively, as determined by the sagittal and axial planes of CT scans which corresponded to the fracture line visible on coronal CT scans...
May 21, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29785313/management-of-an-infected-nonunion-of-an-opening-wedge-high-tibial-osteotomy-with-2-stage-implantation-of-rotating-hinge-knee-prosthesis
#8
Sandrine Mariaux, Olivier Borens
Introduction: High tibial osteotomy (HTO) is a frequent and effective treatment for unicompartmental gonarthritis. Only a few articles are focused on the treatment of infected nonunion. Patient and Method: A 50-year-old obese patient was operated on by medial opening-wedge HTO. She developed a painful nonunion treated by hardware removal, allograft, and plate fixation. However, the nonunion persisted. 2 years later, cellulitis appeared with an abscess adjacent to the HTO plate...
2018: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/29776662/effect-of-the-pore-water-composition-on-the-diffusive-anion-transport-in-argillaceous-low-permeability-sedimentary-rocks
#9
Cornelia Wigger, Luc R Van Loon
The effect of the pore water composition on the diffusive anion transport was studied for two different argillaceous, low permeability sedimentary rocks, Opalinus Clay (OPA) and Helvetic Marl (HM). The samples were saturated with different solutions with varying molar concentration and different main cations in the solution: NaCl based pore solutions and CaCl2 based pore solutions. The total porosity was measured by through-diffusion experiments with the neutral tracer HTO. Experiments performed in NaCl solutions resulted in a porosity of 0...
May 8, 2018: Journal of Contaminant Hydrology
https://www.readbyqxmd.com/read/29761747/changes-in-hindfoot-alignment-after-high-or-low-tibial-osteotomy
#10
Jun Young Choi, Si Jung Song, Sung Jung Kim, Sang Hee Kim, Ji Soo Park, Jin Soo Suh
BACKGROUND: We aimed to determine the change in hindfoot alignment after high (HTO) or low tibial osteotomy (LTO), which is commonly performed to prevent the progression of arthritis of the knee or ankle. METHODS: We retrospectively reviewed the radiographic findings of patients who underwent HTO or LTO for arthritis with varus deformity of the knee or ankle joint. The hindfoot alignment view angle (HAVA), hindfoot alignment ratio (HAR), and hindfoot moment arm (HMA) were measured using the hindfoot alignment radiographs...
May 1, 2018: Foot & Ankle International
https://www.readbyqxmd.com/read/29751158/tritiated-water-exposure-disrupts-myofibril-structure-and-induces-mis-regulation-of-eye-opacity-and-dna-repair-genes-in-zebrafish-early-life-stages
#11
Caroline Arcanjo, Olivier Armant, Magali Floriani, Isabelle Cavalie, Virginie Camilleri, Olivier Simon, Daniel Orjollet, Christelle Adam-Guillermin, Béatrice Gagnaire
Tritium (3 H) is a radioactive isotope of hydrogen. In the environment, the most common form of tritium is tritiated water (HTO). The present study aimed to identify early biomarkers of HTO contamination through the use of an aquatic model, the zebrafish (Danio rerio). We used the zebrafish embryo-larvae model to investigate the modes of action of HTO exposure at dose rates of 0.4 and 4 mGy/h, dose rates expected to induce deleterious effects on fish. Zebrafish were exposed to HTO from 3 hpf (hours post fertilization) to 96 hpf...
April 27, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29734119/how-mobile-is-tritiated-water-through-unsaturated-cement-based-materials-new-insights-from-two-complementary-approaches
#12
S Savoye, A Rajyaguru, N Macé, S Lefèvre, G Spir, J C Robinet
This work presents two complementary approaches (for low and high desaturation) to study tritiated water (HTO) diffusion through unsaturated cement-based materials. The first approach was based on through-diffusion experiments where suction was controlled by osmosis. In the second approach, diffusion experiments were performed in humidity chambers controlled by under-saturated saline solutions. Results revealed a decrease of effective diffusion coefficient by a factor of 10 from 100% to 23% of saturation degree...
April 26, 2018: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29731319/the-influence-of-tibial-slope-on-the-graft-in-combined-high-tibial-osteotomy-and-anterior-cruciate-ligament-reconstruction
#13
Philipp Schuster, Markus Geßlein, Michael Schlumberger, Philipp Mayer, Jörg Richter
BACKGROUND: Young patients with severe medial osteoarthritis, varus malalignment and insufficiency of the anterior cruciate ligament (ACL) are difficult to treat. The tibial slope has gained attention with regard to osteotomies and ligamentous instability. The purpose was to evaluate the outcome of combined high tibial osteotomy (HTO), ACL reconstruction and chondral resurfacing (CR, abrasion plus microfracture), and to analyse graft failure rates with regard to the tibial slope. METHODS: Fifty cases (48...
May 3, 2018: Knee
https://www.readbyqxmd.com/read/29730857/the-role-of-osteotomy-for-the-treatment-of-pcl-injuries
#14
REVIEW
João V Novaretti, Andrew J Sheean, Jayson Lian, Joseph De Groot, Volker Musahl
PURPOSE OF REVIEW: The purposes of this review are to (1) describe the anatomic and biomechanical rationale for high tibial osteotomy (HTO) in the setting of posterior cruciate ligament (PCL) deficiency, (2) review the indications for concomitant HTO and PCL reconstruction, (3) provide guidance for the clinical assessment of the patient with suspected PCL deficiency, and (4) summarize the key surgical steps necessary to attain the appropriate sagittal and coronal plane corrections. RECENT FINDINGS: The preponderance of available biomechanical data pertaining to the PCL-deficient knee suggests that an increased proximal tibial slope limits posterior tibial translation under axial compressive loads...
June 2018: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/29682644/anomalous-piezoelectric-response-of-ferroelectric-mesocrystalline-batio-3-bi-0-5-na-0-5-tio-3-nanocomposites-designed-by-strain-engineering
#15
Wenxiong Zhang, Hao Ma, Sen Li, Dengwei Hu, Xingang Kong, Shinobu Uemura, Takafumi Kusunose, Qi Feng
Mesocrystals, a new class of unique materials, not only have potential properties based on the individual nanocrystals but also have a single-crystal-like function. Here, we report a ferroelectric mesocrystalline BaTiO3/Bi0.5Na0.5TiO3 (BT/BNT) nanocomposite synthesized from a layered titanate H1.07Ti1.73O4 (HTO) by an ingenious two-step topochemical process for the first time. The BT/BNT nanocomposite is constructed from well-aligned BT and BNT nanocrystals with the same crystal-axis orientation. The BT/BNT heteroepitaxial interface in the nanocomposite is promising for an enhanced piezoelectric performance by using lattice strain engineering, which gives a giant piezoelectric response with a value of 408 pm V-1...
May 3, 2018: Nanoscale
https://www.readbyqxmd.com/read/29682282/a-pilot-hole-does-not-reduce-the-strains-or-risk-of-fracture-to-the-lateral-cortex-during-and-following-a-medial-opening-wedge-high-tibial-osteotomy-in-cadaveric-specimens
#16
K Bujnowski, A Getgood, K Leitch, J Farr, C Dunning, T A Burkhart
Aim: It has been suggested that the use of a pilot-hole may reduce the risk of fracture to the lateral cortex. Therefore the purpose of this study was to determine the effect of a pilot hole on the strains and occurrence of fractures at the lateral cortex during the opening of a high tibial osteotomy (HTO) and post-surgery loading. Materials and Methods: A total of 14 cadaveric tibias were randomized to either a pilot hole (n = 7) or a no-hole (n = 7) condition...
February 2018: Bone & Joint Research
https://www.readbyqxmd.com/read/29651561/survival-and-functional-outcome-of-high-tibial-osteotomy-for-medial-knee-osteoarthritis-a-10-20-year-cohort-study
#17
A F Y van Wulfften Palthe, N D Clement, O P P Temmerman, B J Burger
BACKGROUND: The primary aim of this study was to identify independent predictors of long-term survivorship after high tibial osteotomy (HTO). The secondary aims were to describe the functional outcome of surviving HTO 10-20 years after surgery. METHODS: A retrospective cohort of 223 HTO that were performed for the treatment of medial osteoarthritis was identified. Details were recorded from the patient notes. All surviving patients were contacted and asked to complete a Tegner Activity Scale, Lysholm Knee Score and rate pain using the Visual Analogue Scale (VAS)...
April 12, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29626227/effect-of-internal-contamination-with-tritiated-water-on-the-neoplastic-colonies-in-the-lungs-innate-anti-tumour-reactions-cytokine-profile-and-haematopoietic-system-in-radioresistant-and-radiosensitive-mice
#18
Ewa M Nowosielska, Aneta Cheda, Robert Zdanowski, Sławomir Lewicki, Bobby R Scott, Marek K Janiak
Tritium is a potentially significant source of internal radiation exposure which, at high levels, can be carcinogenic. We evaluated whether single intraperitoneal injection of BALB/c and C57BL/6 mice with tritiated water (HTO) leading to exposure to low (0.01 or 0.1 Gy) and intermediate (1.0 Gy) cumulative whole-body doses of β radiation is immunosuppressive, as judged by enhancement of artificial tumour metastases, functioning of NK lymphocytes and macrophages, circulating cytokine's levels, and numbers of bone marrow, spleen, and peripheral blood cells...
April 6, 2018: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/29618146/comparison-of-the-leg-length-change-between-opening-and-closing-wedge-high-tibial-osteotomy-a-systematic-review-and-meta-analysis
#19
O-Sung Lee, Soyeon Ahn, Yong Seuk Lee
The aim of this meta-analysis was to compare the effects of closing-wedge (CW) and opening-wedge (OW) high tibial osteotomies (HTOs) on the change in leg length. Our hypotheses were that leg length will increase after OW HTO and decrease after CW HTO, and the magnitude of the change in leg length would be negligible in both techniques. Multiple databases including MEDLINE, Embase, and Cochrane were searched for studies comparing the change in leg length after HTO with that before HTO. After testing for publication bias and heterogeneity, we aggregated variables by using the random-effects model...
April 4, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29602970/more-accurate-correction-can-be-obtained-using-a-three-dimensional-printed-model-in-open-wedge-high-tibial-osteotomy
#20
Hee-June Kim, Jaeyeong Park, Ji-Yeon Shin, Il-Hyung Park, Kyeong-Hyeon Park, Hee-Soo Kyung
PURPOSE: The purpose of this study was to compare the accuracy of the preoperative planning method using a three-dimensional (3D) printed model with that of a method using picture archiving and communication system (PACS) images in high tibial osteotomy (HTO). METHODS: Patients who underwent HTO using a 3D printed model (20 patients) and a method based on PACS images (20 patients) from 2012 to 2016 were compared. After obtaining the correction angle, in the 3D printed method, the wedge-shaped 3D printed model was designed...
March 30, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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