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https://www.readbyqxmd.com/read/29342496/-adverse-events-in-the-treatment-of-periprosthetic-fractures-around-the-knee-a-clinical-and-radiological-outcome-analysis
#1
Anna Janine Schreiner, Christoph Gonser, Christoph Ihle, Max Konstantin Zauleck, Tim Klopfer, Fabian Stuby, Ulrich Stöckle, Björn Gunnar Ochs
BACKGROUND: The incidence of periprosthetic fractures associated with total knee arthroplasty (PpFxK) has been reported to be 0.3 - 5.5%. 40% of all cases are related to revision TKA. The most common localisation is the distal femur. Classification is performed according to Rorabeck (RB). RB I - II fractures are usually treated with locked plating and retrograde intramedullary nailing, whereas RB III fractures are an indication for revision arthroplasty using a hinged endoprosthesis...
January 17, 2018: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/29342060/creep-and-wear-in-vitamin-e-infused-highly-cross-linked-polyethylene-cups-for-total-hip-arthroplasty-a-prospective-randomized-controlled-trial
#2
G Rochcongar, G Buia, E Bourroux, J Dunet, V Chapus, C Hulet
BACKGROUND: Aseptic loosening, the most common indication for revision surgery in total hip arthroplasty, can result from osteolysis caused by polyethylene (PE) wear particles. PE wear is increased by age-related oxidation of PE and free radicals emerging during irradiation cross-linking. Diffusion of vitamin E into PE stabilizes free radicals to maintain the biomechanical properties of PE. The purpose of this study was to determine whether vitamin E-infused highly cross-linked PE cups could reduce wear rates...
January 17, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29338713/lncrna-dancr-involved-osteolysis-after-total-hip-arthroplasty-by-regulating-foxo1-expression-to-inhibit-osteoblast-differentiation
#3
Zhenyu Tang, Zongming Gong, Xiaoliang Sun
BACKGROUND: Aseptic loosening of artificial hip joint is a major complication affecting the long-term use of the artificial hip joint, and is the main cause of joint replacement failure. However, the mechanism of aseptic loosening of THR has not yet cleared. The aim of this study was to investigate the underlying mechanism of DANCR in osteoblast differentiation (OD). METHODS: We detected the expressions of DANCR and FOXO1 in clinical samples and mesenchymal stem cells (MSCs) by qRT-PCR and western blotting...
January 16, 2018: Journal of Biomedical Science
https://www.readbyqxmd.com/read/29335894/management-of-periprosthetic-shoulder-infections-with-the-use-of-a-permanent-articulating-antibiotic-spacer
#4
Antonio Pellegrini, Claudio Legnani, Vittorio Macchi, Enzo Meani
INTRODUCTION: Management of periprosthetic shoulder infections (PSIs) still remains challenging. We conducted a retrospective case study to assess the outcomes of definitive articulating antibiotic spacer implantation in a cohort of elderly, low-demanding patients. We hypothesized that in patients with low functional demands seeking pain relief with chronic PSIs, treatment with a definitive articulating antibiotic spacer would lead to satisfying results concerning eradication of the infection, improvement of pain, and improving shoulder function...
January 15, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29328414/malat1-enhanced-the-proliferation-of-human-osteoblasts-treated-with-ultra%C3%A2-high-molecular-weight-polyethylene-by-targeting-vegf-via-mir%C3%A2-22%C3%A2-5p
#5
Xucheng Yang, Yingying Zhang, Yusheng Li, Ting Wen
Osteolysis associated with an implanted prosthesis is the major cause of failure in prosthesis implantation, and a severe public health issue worldwide. The type of bone metabolism associated with this disorder has been a major focus for improving the outcomes of patients with osteolysis. The role of metastasis‑associated lung adenocarcinoma transcript 1 (MALAT1; a member of the long coding RNA family) during the onset of osteolysis and the related molecular regulatory mechanism in ultra‑high molecular weight polyethylene (UHMWPE)‑treated hFOB 1...
January 4, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29327939/blockade-of-the-complement-c5a-c5ar1-axis-impairs-lung-cancer-bone-metastasis-by-cxcl16-mediated-effects
#6
Daniel Ajona, Carolina Zandueta, Leticia Corrales, Haritz Moreno, María J Pajares, Sergio Ortiz-Espinosa, Elena Martínez-Terroba, Naiara Perurena, Fernando J de Miguel, Eloisa Jantus-Lewintre, Carlos Camps, Silvestre Vicent, Jackeline Agorreta, Luis M Montuenga, Ruben Pio, Fernando Lecanda
RATIONALE: C5aR1(CD88), a receptor for complement anaphylatoxin C5a, is a potent immune mediator. Its impact on malignant growth and dissemination of NSCLC cells is poorly understood. OBJECTIVES: To investigate the contribution of the C5a/C5aR1 axis to the malignant phenotype of NSCLC cells, particularly in skeletal colonization, a preferential lung metastasis site. METHODS: Association between C5aR1 expression and clinical outcome was assessed in silico and validated by immunohistochemistry...
January 12, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29313319/early-experience-with-a-tapered-titanium-porous-plasma-sprayed-stem-with-updated-design
#7
Antonio G Manocchio, Keith R Berend, Michael J Morris, Joanne B Adams, Adolph V Lombardi
INTRODUCTION: The Taperloc® Complete femoral stem (Zimmer Biomet, Warsaw, Indiana) builds on the widespread clinical success of the original Taperloc design used since 1982. Enhancements to the Complete design include a lowered caput-collum-diaphyseal (CCD) angle from 138° to 133° for improved offset, optimized neck taper with polished neck flats to increase range of motion, reduced distal geometry to improve proximal canal fill, and gradual off-loading that is the goal of tapered geometry...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29311633/traf2-in-osteotropic-breast-cancer-cells-enhances-skeletal-tumour-growth-and-promotes-osteolysis
#8
Prabha Peramuhendige, Silvia Marino, Ryan T Bishop, Daniëlle de Ridder, Asim Khogeer, Isabella Baldini, Mattia Capulli, Nadia Rucci, Aymen I Idris
NFκB plays an important role in inflammation and bone remodelling. Tumour necrosis factor receptor associated factor 2 (TRAF2), a key component of NFκB signalling, has been identified as an oncogene, but its role in the regulation of breast cancer osteolytic metastasis remains unknown. Here, we report that stable overexpression of TRAF2 in parental and osteotropic sub-clones of human MDA-MB-231 (MDA-231) breast cancer cells increased cell growth and motility in vitro, whereas TRAF2 knockdown was inhibitory...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29310414/left-extensive-infection-in-the-forearm-caused-by-whitlow-infected-by-mycobacterium-tuberculosis-a-case-report
#9
Tao Wang, Gang Zhao, Yong-Jun Rui, Zheng-Feng Lu, Jing-Yi Mi
INTRODUCTION: Whitlow is a common disease in clinic, characterized by pain and swelling of finger. However, few articles had reported on extensive infection in the forearm caused by whitlow infected by mycobacterium tuberculosis (MTB). PATIENT CONCERNS: A 70-year-old Chinese female complained of fester in back of left hand for 5 days. She had a history of recurrent whitlow for 14 months and pulmonary tuberculosis (TB). She received treatment in another hospital due to whitlow on July 2016...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29308788/corrigendum-dihydroartemisinin-prevents-breast-cancer-induced-osteolysis-via-inhibiting-both-breast-cancer-cells-and-osteoclasts
#10
Ming-Xuan Feng, Jian-Xin Hong, Qiang Wang, Yong-Yong Fan, Chi-Ting Yuan, Xin-Huan Lei, Min Zhu, An Qin, Hai-Xiao Chen, Dun Hong
This corrects the article DOI: 10.1038/srep19074.
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29307678/mid-term-outcomes-of-dual-mobility-acetabular-cups-for-revision-total-hip-arthroplasty
#11
Steven F Harwin, Assem A Sultan, Anton Khlopas, Morad Chughtai, Nipun Sodhi, Nicolas S Piuzzi, Michael A Mont
BACKGROUND: This study evaluated (1) survivorship, (2) clinical outcomes, (3) complications, and (4) radiographic outcomes of dual mobility (DM) systems when compared to fixed-bearing prostheses in revision total hip arthroplasty (THA). METHODS: A cohort of 85 patients who underwent revision THA using DM implants were compared to a prior matching cohort of 170 patients who received fixed-bearing implants. Mean follow-up time was 4 years in the DM cohort and 10 years in the fixed-bearing cohort...
December 14, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29301147/amentoflavone-inhibits-osteoclastogenesis-and-wear-debris-induced-osteolysis-via-suppressing-nf-%C3%AE%C2%BAb-and-mapks-signaling-pathways
#12
Zhen Zhang, Shuai Zhao, Xiaolei Li, Xiaoqi Zhuo, Wu Zhang, Qian Nie, Shuguang Wang, Lianqi Yan, Yu Sun
Wear debris-induced osteolysis is one of the major reasons for subsequent aseptic loosening after cementless hip arthroplasty. Increasing evidence suggests that receptor activator of nuclear factor kappa-B (NF-κB) ligand-mediated osteoclastogenesis and osteolysis are responsible for wear debris-induced aseptic loosening. In the present study, we explored the effect of amentoflavone (AMF) on inhibiting osteoclast generation and wear debris-induced osteolysis in vitro and in vivo. Twenty-four male C57BL/J6 mice were randomly divided into four groups: a sham group and groups with titanium wear debris treatment followed by intraperitoneal injection of various concentrations of AMF (0, 20, and 40 mg/kg/day)...
January 4, 2018: Planta Medica
https://www.readbyqxmd.com/read/29299654/comparative-study-of-open-and-arthroscopic-coracoid-transfer-for-shoulder-anterior-instability-latarjet-computed-tomography-evaluation-at-a-short-term-follow-up-part-ii
#13
Bartłomiej Kordasiewicz, Maciej Kicinski, Konrad Małachowski, Janusz Wieczorek, Sławomir Chaberek, Stanisław Pomianowski
PURPOSE AND HYPOTHESIS: The aim of this study was to evaluate and to compare the radiological parameters after arthroscopic and open Latarjet technique via evaluation of computed tomography (CT) scans. Our hypothesis was that the radiological results after arthroscopic stabilisation remained in the proximity of those results achieved after open stabilisation. MATERIAL AND METHODS: CT scan evaluation results of patients after primary Latarjet procedure were analysed...
January 4, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29296887/mesenchymal-stem-cells-expressing-osteoprotegerin-variants-inhibit-osteolysis-in-a-murine-model-of-multiple-myeloma
#14
Jerome T Higgs, Joo Hyoung Lee, Hong Wang, Vishnu C Ramani, Diptiman Chanda, Cherlene Y Hardy, Ralph D Sanderson, Selvarangan Ponnazhagan
The current treatment options for multiple myeloma (MM) osteolytic lesions are mainly combinations of chemotherapy and other small-molecule inhibitors, but toxic side effects still remain a major concern. Studies have shown that osteoclast activity is enhanced in MM patients through increased expression of receptor activator of nuclear factor κB ligand (RANKL), triggering RANK signaling on osteoclast precursors, which results in aggressive bone resorption. Furthermore, osteoprotegerin (OPG), a decoy receptor for RANKL, and the osteogenic potential of mesenchymal stem cells (MSCs) are significantly decreased in myeloma patients with multiple bone lesions...
November 28, 2017: Blood Advances
https://www.readbyqxmd.com/read/29289446/solid-cup-vs-cluster-hole-in-total-hip-arthroplasty-a-10-year-randomized-control-trial
#15
Rory A Gallen, Riaz J K Khan, Samantha J Haebich, Sharon H Karamfiles, Humza Khan
BACKGROUND: Acetabular osteolysis is a major complication of total hip arthroplasty. It is caused in part by wear debris. It has been suggested that this debris can migrate through screw holes in the acetabular component. Solid-backed components have been used to prevent this migration and reduce osteolysis. Newer materials, however, have reduced wear debris. This study aimed to evaluate whether using solid-backed instead of cluster-hole components actually reduces osteolysis. This could open up the possibility of screws being used for greater stability where required...
November 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29278411/perfusion-applied-to-a-3d-model-of-bone-metastasis-results-in-uniformly-dispersed-mechanical-stimuli
#16
Boyuan Liu, Suyue Han, Brandon P Hedrick, Yahya Modarres-Sadeghi, Maureen E Lynch
Breast cancer most frequently metastasizes to the skeleton. Bone metastatic cancer is incurable and induces wide-spread bone osteolysis, resulting in significant patient morbidity and mortality. Mechanical cues in the skeleton are an important microenvironmental parameter that modulate tumor formation, osteolysis, and tumor cell-bone cell signaling, but which mechanical signals are the most beneficial and the corresponding molecular mechanisms are unknown. We focused on interstitial fluid flow based on its well-known role in bone remodeling and in primary breast cancer...
December 26, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29276533/contraindications-and-complications-of-the-latarjet-procedure
#17
REVIEW
Peter Domos, Enricomaria Lunini, Gilles Walch
The Latarjet procedure is a well-known, safe and reliable technique to treat primary or recurrent anterior dislocations or subluxations, with or without hyperlaxity, with or without glenoid bone loss. Both the open and the arthroscopic methods produce excellent clinical results, with a low rate of recurrent instability. There have been concerns of a higher surgical complication rate associated with this procedure, however, large reviews reported an overall complication rate in the open Latarjet procedure of 15%...
January 2018: Shoulder & Elbow
https://www.readbyqxmd.com/read/29274861/hybrid-total-hip-arthroplasty-for-multiple-epiphyseal-dysplasia
#18
J Vanlommel, L Vanlommel, B Molenaers, J P Simon
BACKGROUND: Multiple Ephiphyseal Dysplasia (MED) is a rare autosomal dominant skeletal dysplasia that causes deformation of the epiphysis of the involved joints. The hips are invariably affected and symptoms due to incapacitating early onset degenerative hip disease often begin between the second and fourth decade of life. Literature regarding the clinical and radiographical outcomes after total hip arthroplasty in this young population are very scarce. HYPOTHESIS: In patients with multiple epiphyseal dysplasia and early onset degenerative hip disease, hybrid total hip arthroplasty is a safe and reliable procedure...
December 21, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29274286/the-prevention-of-latanoprost-on-osteoclastgenesis-in-vitro-and-lipopolysaccharide-induced-murine-calvaria-osteolysis-in-vivo
#19
Xing Xu, Yufei Yan, Zhuochao Liu, Jin Qi, Niandong Qian, Hanbing Zhou, Qi Zhou, Tianqi Wang, Ping Huang, Lei Guo, Min Jiang, Lianfu Deng
Identification of agents that inhibit osteoclast formation and function is important for the treatment of osteolytic diseases which feature excessive osteoclast formation and bone resorption. Latanoprost (LTP), an analog of prostaglandin F2α, is a medication which works to lower pressure inside the eyes. Prostaglandin F2α was reported to regulate bone metabolism, however the effect of LTP in osteoclastogenesis is still unknown. Here, we found that LTP suppressed RANKL-induced osteoclastogenesis in a dose-dependent manner as illustrated by TRAP activity and TRAP staining...
December 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29273889/tumor-necrosis-factor-receptor-associated-factor-6-is-required-to-inhibit-foreign-body-giant-cell-formation-and-activate-osteoclasts-under-inflammatory-and-infectious-conditions
#20
Akihito Oya, Eri Katsuyama, Mayu Morita, Yuiko Sato, Tami Kobayashi, Kana Miyamoto, Toru Nishiwaki, Atsushi Funayama, Yoshinari Fujita, Takashi Kobayashi, Morio Matsumoto, Masaya Nakamura, Arihiko Kanaji, Takeshi Miyamoto
Osteoclasts and foreign body giant cells (FBGCs) are derived from common progenitors and share properties such as multi-nucleation capacity induced by cell-cell fusion; however, mechanisms underlying lineage determination between these cells remain unclear. Here we show that, under inflammatory conditions, osteoclasts are stimulated in a manner similar to M1 macrophages, while formation of FBGCs, which exhibit M2-like phenotypes, is inhibited in a manner similar to that seen in M1/M2 macrophage polarization...
December 22, 2017: Journal of Bone and Mineral Metabolism
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