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https://www.readbyqxmd.com/read/29933108/stimulation-of-calvarial-bone-healing-with-human-bone-marrow-stromal-cells-versus-inhibition-with-adipose-tissue-stromal-cells-on-nanostructured-%C3%AE-tcp-collagen
#1
Friederike Bothe, Benedict Lotz, Elisabeth Seebach, Jennifer Fischer, Eliane Hesse, Solvig Diederichs, Wiltrud Richter
Bioactive functional scaffolds are essential for support of cell-based strategies to improve bone regeneration. Adipose-tissue-derived-stromal cells (ASC) are more accessible multipotent cells with faster proliferation than bone-marrow-derived-stromal-cells (BMSC) having potential to replace BMSC for therapeutic stimulation of bone-defect healing. Their osteogenic potential is, however lower compared to BMSC, a deficit that may be overcome in growth factor-rich orthotopic bone defects with enhanced bone-conductive scaffolds...
June 19, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29929901/the-role-of-surgical-margins-in-chondrosarcoma
#2
Jonathan D Stevenson, Minna K Laitinen, Michael C Parry, Vaiyapuri Sumathi, Robert J Grimer, Lee M Jeys
INTRODUCTION: Chondrosarcoma (CS) is the second most common primary bone sarcoma with no clear role for adjuvant therapy. The purpose of this study was to investigate (1) the relationship between surgical excision margins and local recurrence free survival (LRFS), and (2) the role of local recurrence (LR) in disease specific survival (DSS) in CS of the extremity and pelvis. MATERIAL AND METHODS: 341 pelvic and extremity CS diagnosed between 2003 and 2015 were studied retrospectively...
June 8, 2018: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29929686/minimally-invasive-plate-osteosynthesis-versus-conventional-open-insertion-techniques-for-osteosynthesis
#3
Paul Toogood, Adrian Huang, Karl Siebuhr, Theodore Miclau
Osteosynthesis has evolved theoretically and practically throughout its evolution. Similar to trends in other surgical fields, surgical techniques in fracture fixation, such as minimally invasive plate osteosynthesis (MIPO), have moved from large dissections to more tissue sparing methods. These plating techniques have been developed for a variety of bones, but more universal clinical adoption will rely upon improved clinical outcomes. The current review will describe minimally invasive techniques, evaluate their rationale, and summarize evidence for their efficacy...
June 2018: Injury
https://www.readbyqxmd.com/read/29929543/a-meta-analysis-of-unicompartmental-knee-arthroplasty-revised-to-total-knee-arthroplasty-versus-primary-total-knee-arthroplasty
#4
REVIEW
Xuedong Sun, Zheng Su
BACKGROUND: This study was performed to compare the clinical outcomes of unicompartmental knee arthroplasty (UKA) revised to total knee arthroplasty (TKA) versus primary TKA. METHODS: Relevant trials were identified via a search of the Cochrane Central Register of Controlled Trials and PubMed from inception to 17 June 2017. A meta-analysis was performed to compare postoperative outcomes between revised UKA and primary TKA with respect to the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, Knee Society Score (KSS), mean polyethylene thickness, hospital stay, revision rate, range of motion (ROM), and complications...
June 22, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29927860/cost-effectiveness-of-a-bone-anchored-annular-closure-device-versus-conventional-lumbar-discectomy-in-treating-lumbar-disc-herniations
#5
Jared Ament, Zhuo Yang, Bart Thaci, Edwin Kulubya, Wellington Hsu, Gerrit Bouma, Kee D Kim
STUDY DESIGN: Cost-utility analysis of an annular closure device (ACD) based on data from a prospective, multicenter randomized controlled trial (RCT) OBJECTIVE.: Determine the cost-effectiveness of a novel ACD in a patient population at high risk for recurrent herniation following discectomy SUMMARY OF BACKGROUND DATA.: Lumbar disc herniation patients with annular defect widths ≥ 6 mm are at high risk for recurrent herniation following limited discectomy. Recurrent herniation is associated with worse clinical outcomes and greater healthcare costs...
June 20, 2018: Spine
https://www.readbyqxmd.com/read/29927785/zoledronic-acid-is-superior-to-tenofovir-df-switching-for-low-bone-mineral-density-in-adults-with-hiv-a-randomised-trial
#6
Jennifer F Hoy, Robyn Richardson, Peter R Ebeling, Jhon Rojas, Nicholas Pocock, Stephen J Kerr, Esteban Martinez, Andrew Carr
OBJECTIVE: To compare the effects of switching tenofovir disoproxil fumarate (TDF) or treatment with an intravenous bisphosphonate on bone mineral density (BMD) in HIV-positive adults with low bone mass. DESIGN: Two-year, randomised, open-label study at 10 sites in Australia and Spain. PARTICIPANTS: Of 112 adults on TDF-based antiretroviral therapy (ART) screened, 87 with low BMD (T-score < -1.0 at hip or spine by dual-energy x-ray absorptiometry) and undetectable plasma HIV viral load were randomised to either switch TDF to another active antiretroviral drug or to continue TDF-based ART and receive intravenous zoledronic acid (ZOL) 5 mg annually for 2 years...
June 20, 2018: AIDS
https://www.readbyqxmd.com/read/29926477/local-anaesthetics-and-regional-anaesthesia-versus-conventional-analgesia-for-preventing-persistent-postoperative-pain-in-adults-and-children
#7
REVIEW
Erica J Weinstein, Jacob L Levene, Marc S Cohen, Doerthe A Andreae, Jerry Y Chao, Matthew Johnson, Charles B Hall, Michael H Andreae
BACKGROUND: Regional anaesthesia may reduce the rate of persistent postoperative pain (PPP), a frequent and debilitating condition. This review was originally published in 2012 and updated in 2017. OBJECTIVES: To compare local anaesthetics and regional anaesthesia versus conventional analgesia for the prevention of PPP beyond three months in adults and children undergoing elective surgery. SEARCH METHODS: We searched CENTRAL, MEDLINE, and Embase to December 2016 without any language restriction...
June 20, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29925489/switching-to-fixed-dose-bictegravir-emtricitabine-and-tenofovir-alafenamide-from-dolutegravir-plus-abacavir-and-lamivudine-in-virologically-suppressed-adults-with-hiv-1-48-week-results-of-a-randomised-double-blind-multicentre-active-controlled-phase-3-non-inferiority
#8
Jean-Michel Molina, Douglas Ward, Indira Brar, Anthony Mills, Hans-Jürgen Stellbrink, Luis López-Cortés, Peter Ruane, Daniel Podzamczer, Cynthia Brinson, Joseph Custodio, Hui Liu, Kristen Andreatta, Hal Martin, Andrew Cheng, Erin Quirk
BACKGROUND: Bictegravir, co-formulated with emtricitabine and tenofovir alafenamide, has shown good efficacy and tolerability, and similar bone, renal, and lipid profiles to dolutegravir, abacavir, and lamivudine, in treatment-naive adults with HIV-1 infection, without development of treatment-emergent resistance. Here, we report 48-week results of a phase 3 study investigating switching to bictegravir, emtricitabine, and tenofovir alafenamide from dolutegravir, abacavir, and lamivudine in virologically suppressed adults with HIV-1 infection...
June 15, 2018: Lancet HIV
https://www.readbyqxmd.com/read/29922299/the-emerging-link-between-the-complement-cascade-and-purinergic-signaling-in-stress-hematopoiesis
#9
REVIEW
Mariusz Z Ratajczak, Mateusz Adamiak, Magda Kucia, William Tse, Janina Ratajczak, Wieslaw Wiktor-Jedrzejczak
Innate immunity plays an important role in orchestrating the immune response, and the complement cascade (ComC) is a major component of this ancient defense system, which is activated by the classical-, alternative-, or mannan-binding lectin (MBL) pathways. However, the MBL-dependent ComC-activation pathway has been somewhat underappreciated for many years; recent evidence indicates that it plays a crucial role in regulating the trafficking of hematopoietic stem/progenitor cells (HSPCs) by promoting their egress from bone marrow (BM) into peripheral blood (PB)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29920767/differential-chemokine-receptor-expression-and-usage-by-pre-cdc1-and-pre-cdc2
#10
Stuart J Cook, Quintin Lee, Alex C H Wong, Benjamin C Spann, Jonathan N Vincent, Justin J L Wong, Andreas Schlitzer, Mark D Gorrell, Wolfgang Weninger, Ben Roediger
Conventional dendritic cells (cDCs) are continuously replenished by bone marrow-derived precursors called pre-DCs, which traffic through the blood to peripheral tissues. Pre-DCs are a heterogeneous population that includes cDC subset-committed progenitors, namely pre-cDC1 and pre-cDC2, which give rise to mature cDC1 and cDC2, respectively. However, the molecular cues regulating pre-cDC1 versus pre-cDC2 trafficking towards peripheral sites during homeostasis and disease remain elusive. Here, we report that pre-cDC1 but not pre-cDC2 express the T helper type 1-associated chemokine receptor CXCR3...
June 19, 2018: Immunology and Cell Biology
https://www.readbyqxmd.com/read/29916970/optimal-timing-of-alveolar-cleft-bone-grafting-for-maxillary-clefts-in-the-cleft-palate-population
#11
Arminder S Kaura, Dhivya R Srinivasa, Steven J Kasten
PURPOSE: Timing of bone grafting for maxillary alveolar clefts is not standardized. Secondary bone grafting is often performed; however, consensus does not exist regarding use of chronologic versus dental age to guide treatment. Several authors suggest an early chronologic age is associated with greater success. Available literature was systematically reviewed for evidence for optimal timing for grafting maxillary alveolar clefts. METHODS: PubMed, MEDLINE, and Cochrane Central Registrar of Controlled Trials databases were queried for manuscripts pertaining to maxillary alveolar cleft bone grafting...
June 18, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29916291/two-stage-open-reduction-and-internal-fixation-versus-limited-internal-fixation-combined-with-external-fixation-a-meta-analysis-of-postoperative-complications-in-patients-with-severe-pilon-fractures
#12
Xueliang Cui, Hui Chen, Yunfeng Rui, Yang Niu, He Li
Objectives Two-stage open reduction and internal fixation (ORIF) and limited internal fixation combined with external fixation (LIFEF) are two widely used methods to treat Pilon injury. However, which method is superior to the other remains controversial. This meta-analysis was performed to quantitatively compare two-stage ORIF and LIFEF and clarify which method is better with respect to postoperative complications in the treatment of tibial Pilon fractures. Methods We conducted a meta-analysis to quantitatively compare the postoperative complications between two-stage ORIF and LIFEF...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29916003/comparison-of-the-outcomes-of-navigation-assisted-revision-of-unicompartmental-knee-arthroplasty-to-total-knee-arthroplasty-versus-navigation-assisted-primary-tka
#13
Han-Jun Lee, Yong-Beom Park, Min-Ku Song, Yoon-Ho Kwak, Seong Hwan Kim
PURPOSE: Revision of unicompartmental knee arthroplasty (UKA) to total knee arthroplasty (TKA) is technically demanding but can be performed with computer navigation system guidance. The purpose of this study was (1) to compare the outcomes of revision of UKA to TKA to those of primary TKA and (2) to describe a surgical technique for the revision of UKA to TKA using a navigation system. METHODS: From May 2011 to April 2014, a total of 298 knees underwent primary navigation-assisted TKA (group 1), and navigation-assisted UKA revision to TKA was performed in 15 patients (group 2)...
June 19, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29915897/darunavir-cobicistat-emtricitabine-tenofovir-alafenamide-a-review-in-hiv-1-infection
#14
Emma D Deeks
Darunavir/cobicistat/emtricitabine/tenofovir AF (Symtuza® ) is the first protease inhibitor (PI)-based single-tablet regimen (STR) available for the treatment of adults and adolescents (aged ≥ 12 years) with HIV-1 infection. It combines the PI darunavir (which has a high genetic barrier to resistance) with the pharmacokinetic booster cobicistat and the nucleos(t)ide reverse transcriptase inhibitors emtricitabine and tenofovir alafenamide (tenofovir AF), the latter being associated with less off-target tenofovir exposure than its predecessor tenofovir disoproxil fumarate (tenofovir DF)...
June 18, 2018: Drugs
https://www.readbyqxmd.com/read/29913256/the-effect-of-glucocorticoids-on-bone-mineral-density-in-patients-with-rheumatoid-arthritis-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#15
Anne-Birgitte Blavnsfeldt, Annette de Thurah, Malissa Dawn Thomsen, Simon Tarp, Bente Langdahl, Ellen-Margrethe Hauge
PURPOSE: The role of glucocorticoids in the treatment of rheumatoid arthritis (RA) is widely debated. Impairment of bone formation may be counter-balanced by reduced systemic inflammation. This review aims to assess the effect of prednisolone/prednisone on bone mineral density (BMD) in patients with RA analyzed in randomized, controlled trials. METHODS: We performed a systematic literature search and identified randomized, double-blinded placebo-controlled studies including patients with RA and using prednisolone or prednisone as the intervention...
June 15, 2018: Bone
https://www.readbyqxmd.com/read/29912838/baha-skin-complications-in-the-pediatric-population-systematic-review-with-meta-analysis
#16
Scott Shapiro, Jad Ramadan, Adam Cassis
OBJECTIVE: Compare the incidence of skin and surgical site complications for children undergoing percutaneous and transcutaneous bone conduction implant (pBCI and tBCI) surgery via systematic review and meta-analysis of the available data. DATA SOURCES: 1) Search of PubMed, Web of Science, and EBSCOhost databases from January 2012 to April 2017. 2) References of studies meeting initial criteria. STUDY SELECTION: Inclusion criteria were studies that involved patients less than 18 years old undergoing tBCI or pBCI surgery with a BI300 implant and reported skin complications, implant loss, and need for revision surgery...
June 15, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29912826/comparison-of-postoperative-pain-in-patients-following-transcanal-endoscopic-versus-microscopic-ear-surgery
#17
Seiji Kakehata, Takatoshi Furukawa, Tsukasa Ito, Toshinori Kubota, Kazunori Futai, Tomoo Watanabe
OBJECTIVE: To compare levels and causes of postoperative pain after cholesteatoma removal by transcanal endoscopic ear surgery (TEES) versus microscopic ear surgery (MES). STUDY DESIGN: Prospective case series. SETTING: Tertiary referral center. PATIENTS: One-hundred-and-sixty-one patients who had undergone middle ear surgery between February 2013 and April 2016. INTERVENTIONS: Comparison of postoperative pain between TEES and MES groups and among TEES and MES subgroups divided by range of bone removal...
June 15, 2018: Otology & Neurotology
https://www.readbyqxmd.com/read/29911962/evans-syndrome-after-successful-immunosuppressant-free-living-donor-liver-transplant
#18
Amr Badawy, Toshimi Kaido, Yoshizawa Atsushi, Shintaro Yagi, Koichiro Hata, Naoko Kamo, Ken Fukumitsu, Hideaki Okajima, Shinji Uemoto
Evans syndrome is an uncommon disease characterized by a combination of autoimmune hemolytic anemia and autoimmune thrombocytopenia concomitantly or sequentially with a positive direct Coombs test in the absence of any underlying known cause. Here, we present a case of an adult patient who underwent living-donor liver transplant that was preceded by bone marrow transplant 20 years earlier from the same HLA identical donor and who received a single-agent immunosuppressive therapy for only 2 months as prophylaxis against graft-versus-host disease...
June 18, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29909782/endoscopic-push-through-technique-compared-to-microscopic-underlay-myringoplasty-in-anterior-tympanic-membrane-perforations
#19
D E M El-Hennawi, M R Ahmed, A S Abou-Halawa, M A Al-Hamtary
BACKGROUND: Microscopic myringoplasty is the most frequently performed procedure for repairing tympanic membrane perforations. The endoscopic transcanal approach bypasses the narrow ear canal segment and provides a wider view. METHODS: An open-label randomised clinical trial was conducted on 56 patients with small anterior tympanic membrane perforations. Perforations were repaired with an endoscopic push-through technique (n = 28) or a microscopic underlay technique (n = 28)...
June 18, 2018: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29909470/risk-of-fracture-and-low-bone-mineral-density-in-adults-with-inflammatory-bowel-diseases-a-systematic-literature-review-with-meta-analysis
#20
REVIEW
P Szafors, H Che, T Barnetche, J Morel, C Gaujoux-Viala, B Combe, C Lukas
Inflammatory bowel diseases (IBDs) are associated with a decreased bone mineral density, but the impact on fractures is unknown. In our study, global risk of fracture is increased for patients with IBDs versus controls. This result will help to determine the appropriate assessment with early screening and management of osteoporosis. Inflammatory bowel diseases (IBDs), such as Crohn's disease (CD) and ulcerative colitis (UC), are associated with a decreased bone mineral density (BMD). However, the impact on fracture risk is unknown and data are contradictory across studies...
June 16, 2018: Osteoporosis International
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