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https://www.readbyqxmd.com/read/29050180/-meta-analysis-of-three-dimensional-printing-patient-specific-instrumentation-versus-conventional-instrumentation-in-total-knee-arthroplasty
#1
J T Ren, C Xu, J S Wang, X L Liu
Objective: To evaluate the effects of three-dimensional printing patient-specific instrumentation(PSI) versus conventional instrumentation(CI) in the total knee arthroplasty. Methods: According to "patient-specific" , "patient-matched" , "custom" , "Instrumentation" , "Guide Instrumentation" , "cutting blocks" , "total knee arthroplasty" , "total knee replacement" , "TKA" and "TKR" , the literature on PubMed, EMbase, Cochrane library, CBM and WanFang were searched. According to the inclusion and exclusion criteria, the high quality randomized control trial (RCT) studies about three-dimensional (3D) printing patient-specific instrumentation versus conventional instrumentation in the total knee arthroplasty were collected...
October 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29050162/-two-stage-total-hip-arthroplasty-using-an-antibiotic-loaded-cement-spacer-for-infected-internal-fixation-of-hip-fractures
#2
X Li, M Ni, H Li, J L Song, X G Song, J Fu, K Liu, B Z Yu, J Y Chen
Objective: To evaluate the application and clinical results of two-stage total hip arthroplasty in the treatment of the deep hip infection following the internal fixation of hip fractures. Methods: From May 2007 to November 2014, 21 patients with active hip infection secondary to internal fixation of hip fractures were treated with two-stage total hip arthroplasty using a temporary antibiotic-loaded cement spacers. Of 21 cases, 15 were males and 6 were females, aged from 27 to 64 years (mean, 45); there are 18 cases of femoral neck fractures and 3 cases of intertrochanteric fractures...
October 10, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29050153/-study-on-the-differentiation-of-rat-bone-marrow-mesenchymal-stem-cells-into-chondrocytes-induced-by-tgf-beta-3
#3
D B Liu, X S Han, W L Huang, J Deng, R F She
Objective: To explore the methods for the differentiation of rat bone marrow mesenchymal stem cells (BMMSCs) into chondrocytes induced by transforming growth factor (TGF)-beta 3 in vitro, and search for a reliable seed cell for the regeneration and repair of articular cartilage in osteoarthritis. Methods: SD rat femoral and tibial BMMSCs were cultured by the whole bone marrow adherent method, and then the purity was identified by flow cytometry. P3 generation cells were induced and differentiated into chondrocytes by the induction of differentiation medium containing TGF-beta 3, and cell chondrogenic differentiation ability at different induction time points was detected...
September 26, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29049834/percutaneous-left-atrial-unloading-to-prevent-pulmonary-oedema-and-to-facilitate-ventricular-recovery-under-extracorporeal-membrane-oxygenation-therapy
#4
Alexander M Bernhardt, Mathias Hillebrand, Yalin Yildirim, Samer Hakmi, Florian M Wagner, Stefan Blankenberg, Hermann Reichenspurner, Edith Lubos
OBJECTIVES: Left-sided unloading during extracorporeal membrane oxygenation (ECMO) therapy is crucial to prevent pulmonary oedema and facilitate ventricular recovery. We present the case of a 55-year-old man under ECMO therapy with pre-existing left ventricular (LV) thrombus formation and in need of ventricular unloading. METHODS: We implanted a 21-Fr TandemHeart Protek Solo trans-septal cannula into the left atrium using a trans-septal approach via the femoral vein...
September 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049816/triple-ultrasonography-for-iatrogenic-acute-aortic-dissection-caused-by-axillary-arterial-perfusion
#5
Masaki Yamamoto, Hideaki Nishimori, Miwa Tashiro, Kazumasa Orihashi
Iatrogenic aortic dissection caused by axillary arterial cannulation or perfusion becomes a fatal complication of cardiopulmonary bypass when surgeons do not recognize it in the surgical field of view immediately during surgery. Therefore, we routinely monitor the aorta using 'triple ultrasonography' during cardiovascular surgery. An 85-year-old woman underwent partial arch replacement for chronic type A aortic dissection. During cardiopulmonary bypass, acute aortic dissection was observed in the aortic arch from the right axillary artery on real-time transoesophageal echocardiography...
July 12, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049795/establishing-stable-innominate-access-by-inserting-a-body-floss-wire-from-the-brachial-artery-to-the-femoral-artery-facilitates-right-carotid-artery-stenting-in-type-iii-arch-anatomy
#6
Ming-Jen Kuo, Po-Lin Chen, Chun-Che Shih, I-Ming Chen
OBJECTIVES: In patients with severe carotid artery stenosis, the anatomy of their Type III aortic arch increases the difficulty and complication rates during carotid artery stenting because of its tortuosity and sharp angulation for cannulation as well as the unstable support of the guidewire for shuttle sheath delivery. METHODS: We demonstrate a novel technique to overcome these challenges, namely the creation of stable innominate artery access by inserting a through-and-through body floss wire from the right brachial artery to the femoral artery...
August 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049683/ventricular-assist-device-in-a-failing-total-cavopulmonary-connection-a-new-step-by-step-approach
#7
Carlo Pace Napoleone, Maria Teresa Cascarano, Luca Deorsola, Andrea Valori
The management of failing Fontan patients with mechanical circulatory support has been reported with unsatisfactory results. A 5-year-old girl, listed for heart transplantation for failing Fontan, underwent rescue extracorporeal membrane oxygenation support. As it was necessary to move the patient to the Berlin Heart Excor, a step-by-step approach was designed to obtain a gradual adaptation to this form of support. A central extracorporeal membrane oxygenation, with a Berlin Heart apical and aortic cannulae, was implanted leaving the previously positioned femoral vein cannula in parallel with the outflow apical one...
September 11, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29049670/an-alternative-method-to-characterize-the-quasi-static-non-linear-material-properties-of-murine-articular-cartilage
#8
Alexander Kotelsky, Chandler W Woo, Luis F Delgadillo, Michael S Richards, Mark R Buckley
With the onset and progression of osteoarthritis (OA), articular cartilage (AC) mechanical properties are altered. These alterations can serve as an objective measure of tissue degradation. Although the mouse is a common and useful animal model for studying OA, it is extremely challenging to measure the mechanical properties of murine AC due to its small size (thickness < 50 um). In this study, we developed novel and direct approach to independently quantify two quasi-static mechanical properties of mouse AC: the load-dependent (non-linear) solid matrix Young's modulus (E) and drained Poisson ratio (v)...
October 10, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29049519/association-of-bone-mineral-density-with-the-risk-of-intracranial-aneurysm
#9
Yong-Won Shin, Kyung-Il Park, Jangsup Moon, Soon-Tae Lee, Kon Chu, Sang Kun Lee, Jae-Kyu Roh, Keun-Hwa Jung
Importance: Disruption of extracellular matrix integrity is critically involved in both intracranial aneurysm and bone fragility. Furthermore, both intracranial aneurysm and osteoporosis have a female predominance, and sex hormones are considered to affect this discrepancy. Objective: To evaluate the association between bone mineral density and intracranial aneurysm. Design, Setting, and Participants: A cross-sectional study conducted with 14 328 patients who underwent brain magnetic resonance angiography and bone mineral densitometry as a part of a health examination at a specialized center for comprehensive health examination in Seoul, the largest metropolitan area in the Republic of Korea, between December 2004 and November 2015...
October 16, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29049204/the-genetic-association-between-pon1-polymorphisms-and-osteonecrosis-of-femoral-head-a-case-control-study
#10
Jian-Mei Li, Yi Li, Lu Wang
The purpose of this study was to investigate the relationship between Paraoxonase-1 (PON1) gene rs662, rs854555 polymorphisms and osteonecrosis of the femoral head (ONFH) in Han population, northern China.Polymerase chain reaction-restriction fragment length polymorphism was used to determine genotypes of PON1 polymorphisms in 84 patients with ONFH and 96 healthy persons. χ test was used to compare distribution differences of genotype, allele, and haplotype between the case and control groups. The odds ratio (OR) and 95% confidence interval (CI) were calculated to reveal the effects of PON1 polymorphisms on risk of ONFH, and the results were adjusted using logistic regression analysis...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29049169/association-between-plasminogen-activator-inhibitor-gene-polymorphisms-and-osteonecrosis-of-the-femoral-head-susceptibility-a-case-control-study
#11
Yi Li, Feng-Xia Liu, Chao Yuan, Lingguo Meng
This study aimed to analyze the correlation of the plasminogen activator inhibitor (PAI-1) gene polymorphisms (rs6092 and rs7242) with susceptibility of osteonecrosis of the femoral head (ONFH).This case-control study included 106 ONFH patients and 151 healthy controls. PAI-1 polymorphisms were genotyped by polymerase chain reaction (PCR) with direct sequencing. The genotype distribution of polymorphism in the control group was checked with the status of Hardy-Weinberg equilibrium (HWE). The χ test was applied to compare the genotypes of polymorphisms between the case and control groups...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29048698/soft-tissue-reinforcement-with-a-leeds-keio-artificial-ligament-in-revision-surgery-for-dislocated-total-hip-arthroplasty
#12
Shigeo Aota, Shin-Ichi Kikuchi, Hironori Ohashi, Naoko Kitano, Michiyuki Hakozaki, Shin-Ichi Konno
INTRODUCTION: Since dislocation after total hip arthroplasty (THA) greatly diminishes patient's quality of life, the THA frequently needs revision. However, it is common for the dislocation not to heal even after reconstruction, but rather to become intractable. METHODS: The 17 patients with dislocated THA, mean age of 71 years (range 51-87 years), who underwent a revision THA together with soft tissue reinforcement with a Leeds-Keio (LK) ligament were enrolled...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29048695/evaluation-of-late-redislocation-in-patients-who-underwent-open-reduction-and-pelvic-osteotomy-as-treament-for-developmental-dysplasia-of-the-hip
#13
Ümit Tuhanioğlu, Hakan Cicek, Hasan U Ogur, Firat Seyfettinoglu, Ahmet Kapukaya
INTRODUCTION: The goal in the treatment of developmental dysplasia of the hip (DDH) is to achieve a stable and concentric reduction and to create a congruent relationship between the femoral head and the acetabulum. This study discusses the causes of loss of reduction in DDH patients who had a concentrically reduced hip at the time of removal of the hip spica cast and cessation of brace use and who later appeared with hip redislocation after mobilisation and ambulation. In addition, the possible interventions in such cases are also discussed...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29048694/effect-of-sleeved-ceramic-femoral-heads-on-titanium-ion-release
#14
Anthony Deny, Janie Barry, Jonathan R B Hutt, Martin Lavigne, Vincent Massé, Pascal-André Vendittoli
INTRODUCTION: Metal ion release from wear and corrosion at the femoral head-stem taper junction can evoke local adverse reactions to metal debris (ARMD). In a specific large-diameter head (LDH) total hip arthroplasty (THA) system, ceramic femoral heads of 44 to 48 mm are available with a titanium (Ti) adaptor sleeve, while heads of 36- to 40-mm come without sleeves. The hypothesis of this study is that the Ti adaptor sleeve with LDH ceramic-on-ceramic (CoC) bearings will not cause wear or corrosion at the taper junction and, thus, will not generate high whole blood Ti ion levels...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29048693/risk-factors-for-conversion-surgery-to-total-hip-arthroplasty-of-a-hemiarthroplasty-performed-for-a-femoral-neck-fracture
#15
Matthew J Grosso, Jonathan R Danoff, Ryan Thacher, Taylor S Murtaugh, Thomas R Hickernell, Roshan P Shah, William Macaulay
INTRODUCTION: The purpose of this study was to determine risk factors for conversion to total hip arthroplasty (THA) in patients originally treated with hemiarthroplasty (HA) for displaced femoral neck fractures. METHODS: In this case-controlled study, we identified 54 patients who were treated with HA for femoral neck fracture (FNF) who subsequently underwent conversion to THA at our institution between 2003 and 2013. We randomly selected 142 control patients who underwent HA for a displaced FNF without conversion surgery during the same time period...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29048692/effects-of-electrical-stimulation-in-the-treatment-of-osteonecrosis-of-the-femoral-head
#16
Salvador Fornell, Juan Ribera, Mario Mella, Andrés Carranza, David Serrano-Toledano, Gabriel Domecq
INTRODUCTION: The aim of this study was to examine whether the use of an internal electrostimulator could improve the results obtained with core decompression alone in the treatment of osteonecrosis of the femoral head. METHODS: We performed a retrospective study of 41 patients (55 hips) treated for osteonecrosis of the femoral head between 2005 and 2014. Mean follow-up time was 56 (12-108) months. We recorded 3 parameters: time to recurrence of pain, time to conversion to arthroplasty and time to radiographic failure...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29048691/is-a-short-stem-suitable-for-patients-with-hip-dysplasia-a-report-on-technical-problems-encountered-during-femoral-reconstruction
#17
Martin A Buttaro, Pablo A Slullitel, Gerardo Zanotti, Fernando M Comba, Francisco Piccaluga
INTRODUCTION: A wide variety of stems have been used for the treatment of osteoarthritis secondary to advanced hip dysplasia. Since evidence for using short stems in dysplastic hips is limited, we planned to analyse the technical problems encountered when reconstructing the proximal femur of patients with osteoarthritis secondary to congenital dysplasia of the hip treated with total hip arthroplasty (THA) using a type 2B short stem. METHODS: We prospectively analysed 17 patients (22 hips) treated with primary THA performed with a single-branded short uncemented stem with metaphyseal fixation (MiniHip™; Corin)...
October 14, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29048690/large-fresh-osteochondral-allografts-for-the-hip-growing-the-evidence
#18
Lasun O Oladeji, James L Cook, James P Stannard, Brett D Crist
INTRODUCTION: Articular cartilage lesions of the hip are difficult to effectively treat. Osteochondral allograft (OCA) transplantation in the knee has been associated with long-term success, but OCA for the hip has not been extensively studied. Here, we present the clinical and radiological outcomes from a cohort of 10 patients treated with fresh OCA transplants for large osteochondral defects of the femoral head and/or acetabulum. METHODS: 10 patients who had undergone osteochondral allograft transplantation of the femoral head and/or acetabulum at our institution between 2013 and 2016 were identified from our Institutional Review Board-approved registry...
October 17, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29048688/is-endoprosthetic-replacement-of-the-proximal-femur-appropriate-in-the-comorbid-patient
#19
Arun Khajuria, Jonathon Ward, George Cooper, Jonathon Stevenson, Michael Parry, Lee Jeys
INTRODUCTION: Patients with failed hip arthroplasty requiring extensive femoral reconstruction often present with a multitude of comorbidities. Many treatment options limit initial mobilisation relying on bone graft incorporation. The use of endoprosthetic replacement (EPR), despite often being a "last resort", offers an expeditious solution with early mobilisation that is crucial in the comorbid individual. Many perceive that the surgical insult of EPR is associated with an increased mortality...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29047405/cortisol-inhibits-mtor-signaling-in-avascular-necrosis-of-the-femoral-head
#20
Yun Liao, Rui Su, Ping Zhang, Bo Yuan, Ling Li
BACKGROUND: ANFH is a major health problem, to which long lasting and definitive treatments are lacking. The aim of this study is to study RNA alterations attributed to cortisol-induced ANFH. METHODS: Rat models were stratified into three groups: in vitro group (n = 20) for molecular biological assays, control group (n = 3), and ANFH group induced using lipopolysaccharide and dexamethasone (n = 3). Bone marrow-derived endothelial progenitor cells (BM-EPCs) were extracted from the rats...
October 18, 2017: Journal of Orthopaedic Surgery and Research
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