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https://www.readbyqxmd.com/read/28732103/denosumab-current-use-in-the-treatment-of-primary-bone-tumors
#1
Olga D Savvidou, Ioanna K Bolia, George D Chloros, John Papanastasiou, Panagiotis Koutsouradis, Panayiotis J Papagelopoulos
Denosumab, a human monoclonal antibody that inhibits bone resorption by binding on the receptor activator of the nuclear factor kappa-β ligand, has recently emerged as an additional option in the treatment of musculoskeletal osteolytic tumors. This article focuses on the recent literature regarding the effectiveness of denosumab in the management of giant cell tumor, multiple myeloma, aneurysmal bone cyst, and osteosarcoma. The mechanism of action of denosumab in the management of these tumors and the associated side effects are discussed in detail...
July 1, 2017: Orthopedics
https://www.readbyqxmd.com/read/28731390/letter-to-the-editor-limitation-of-the-orthopedic-system-inc-cervical-spine-base-unit
#2
Patrick W Hitchon, Mario Zanaty, Logan Helland, Kingsley Abode-Iyamah, Nader S Dahdaleh
No abstract text is available yet for this article.
July 21, 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28731325/bioinspired-and-biomimetic-agnps-gentamicin-embedded-silk-fibroin-coatings-for-robust-antibacterial-and-osteogenetic-applications
#3
Wenhao Zhou, Zhaojun Jia, Pan Xiong, Jianglong Yan, Yangyang Li, Ming Li, Yan Cheng, Yufeng Zheng
With the progressively increasing demand for orthopedic Ti implants, the balance realization between two primary complications restricting implants applications is imperative needed to be solved that the lack of bone tissue integration and biomedical device-associated infections (BAI), where emergence of multi-resistance bacteria make it worse. Notably, a combination of silver nanoparticles (AgNPs) and a kind of antibiotic can synergistically inhibit bacterial growth, where low concentration of AgNPs has been confirmed to promote the proliferation and osteogenesis of osteoblasts...
July 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28731198/gsk-3%C3%AE-inhibition-suppresses-instability-induced-osteolysis-by-a-dual-action-on-osteoblast-and-osteoclast-differentiation
#4
Mehdi Amirhosseini, Rune Vinther Madsen, K Jane Escott, Mathias Bostrom, F Patrick Ross, Anna Fahlgren
Currently, there are no medications available to treat aseptic loosening of orthopedic implants. Using osteoprotegerin fusion protein (OPG-Fc), we previously blocked instability-induced osteoclast differentiation and peri-prosthetic osteolysis. Wnt/β-catenin signaling, which regulates OPG secretion from osteoblasts, also modulates the bone tissue response to mechanical loading. We hypothesized that activating Wnt/β-catenin signaling by inhibiting glycogen synthase kinase-3β (GSK-3β) would reduce instability-induced bone loss through regulation of both osteoblast and osteoclast differentiation...
July 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28730548/orthopedic-infections-caused-by-obligatory-anaerobic-gram-negative-rods-report-of-two-cases
#5
Marta Kierzkowska, Piotr Pedzisz, Ireneusz Babiak, Jakub Janowicz, Mateusz Kulig, Anna Majewska, Anna Sawicka-Grzelak, Grazyna Mlynarczyk
Anaerobic bone and joint infections are uncommon, although the number of anaerobic infections is presumably underestimated because of difficulties with isolation and identification of obligate anaerobes. This study describes two cases of complicated Bacteroides fragilis peri-implant infection of the lumbar spine, infection of the hip and osteomyelitis. Bacteria were identified with the use of a mass spectrometer, VITEK MS system. Drug susceptibility was performed with the use of E-test. The EUCAST breakpoints were used for interpretation with B...
July 20, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28730462/nd-induced-honeycomb-structure-of-intermetallic-phase-enhances-the-corrosion-resistance-of-mg-alloys-for-bone-implants
#6
Cijun Shuai, Youwen Yang, Shuping Peng, Chengde Gao, Pei Feng, Jian Chen, Yong Liu, Xin Lin, Sheng Yang, Fulai Yuan
Mg-5.6Zn-0.5Zr alloy (ZK60) tends to degrade too rapid for orthopedic application, in spite of its natural degradation, suitable strength and good biocompatibility. In this study, Nd was alloyed with ZK60 via laser melting method to enhance its corrosion resistance. The microstructure features, mechanical properties and corrosion behaviors of ZK60-xNd (x = 0, 1.8, 3.6, 5.4 wt.%) were investigated. Results showed that laser melted ZK60-xNd were composed of fine ɑ-Mg grains and intermetallic phases along grain boundaries...
September 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28730263/unicameral-bone-cyst-of-the-calcaneus-minimally-invasive-endoscopic-surgical-treatment-case-report
#7
Ioan Cristian Stoica, Doina Mihaela Pop, Florin Grosu
The role of arthroscopic surgery for the treatment of various orthopedic pathologies has greatly improved during the last years. Recent publications showed that benign bone lesion may benefit from this minimally invasive surgical method, in order to minimize the invasiveness and the period of immobilization and to increase visualization. Unicameral bone cysts may be adequately treated by minimally invasive endoscopic surgery. The purpose of the current paper is to present the case report of a patient with a unicameral bone cyst of the calcaneus that underwent endoscopically assisted treatment with curettage and bone grafting with allograft from a bone bank, with emphasis on the surgical technique...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28728512/antiphospholipid-hughes-syndrome-insights-for-orthopedics
#8
M H A Noureldine, I Uthman
No abstract text is available yet for this article.
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28728206/-subaxial-cervical-spine-injuries-treatment-recommendations-of-the-german-orthopedic-and-trauma-society
#9
Philipp Schleicher, Matti Scholz, Frank Kandziora, Andreas Badke, Florian Hans Brakopp, Helmut Klaus Friedrich Ekkerlein, Erol Gercek, Rene Hartensuer, Philipp Hartung, Jan-Sven Gilbert Jarvers, Philipp Kobbe, Stefan Matschke, Robert Morrison, Christian W Müller, Miguel Pishnamaz, Maximilian Reinhold, Klaus John Schnake, Gregor Schmeiser, Gregor Stein, Bernhard Ullrich, Thomas Weiß, Volker Zimmermann
In a consensus process during four sessions in 2016, the working group "lower cervical spine" of the German Society for Orthopedic and Trauma Surgery (DGOU), formulated "Therapeutic Recommendations for the Lower Cervical Spine", taking into consideration the current literature. Therapeutic goals are a permanently stable, painless cervical spine and the protection against secondary neurologic damage while retaining the greatest possible amount of motion and spinal profile. Due to its ease of use and its proven good reliability, the AOSpine classification for subaxial cervical injuries should be used...
July 20, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28725919/accurate-guide-wire-of-lag-screw-placement-in-the-intertrochanteric-fractures-a-technical-note
#10
Jiang Li, Liao Wang, Xiaodong Li, Kai Feng, Jian Tang, Xiaoqing Wang
Cephalomedullary fixations are commonly used in the treatment of intertrochanteric fractures. In clinical practice, one of the difficulties is when we exit the guide wire in a wrong position of femoral neck and insert near the hole again, the guide wire often flow into the previous track. This study develops a surgical technique to direct the guide wire to slip away the previous track and slip into a right position. When guide wire is exited to the cortex of femoral, we let the wire in and out at the cortical layer for several times to enlarge the entry hole...
July 19, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28724466/home-environment-as-a-predictor-of-long-term-executive-functioning-following-early-childhood-traumatic-brain-injury
#11
Christianne Laliberté Durish, Keith Owen Yeates, Terry Stancin, H Gerry Taylor, Nicolay C Walz, Shari L Wade
OBJECTIVES: This study examined the relationship of the home environment to long-term executive functioning (EF) following early childhood traumatic brain injury (TBI). METHODS: Participants (N=134) were drawn from a larger parent study of 3- to 6-year-old children hospitalized for severe TBI (n=16), complicated mild/moderate TBI (n=44), or orthopedic injury (OI; n=74), recruited prospectively at four tertiary care hospitals in the United States and followed for an average of 6...
July 20, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28724382/activation-of-cannabinoid-receptor-type-2-attenuates-surgery-induced-cognitive-impairment-in-mice-through-anti-inflammatory-activity
#12
Lingling Sun, Rui Dong, Xin Xu, Xi Yang, Mian Peng
BACKGROUND: Neuroinflammation plays a major role in postoperative cognitive dysfunction (POCD). Accumulated evidence indicates that cannabinoid receptor type 2 (CB2R) can mediate anti-inflammatory and immunomodulatory effects in part by controlling microglial activity. However, the impact of CB2R on postoperative cognition has not been investigated. We hypothesized that CB2R is involved in surgery-induced cognitive impairment in adult mice. METHODS: Adult C57BL/6 mice were subjected to intramedullary fixation surgery for tibial fracture under isoflurane anesthesia and CB2R agonist (JWH133) or CB2R antagonist (AM630) treatment...
July 19, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28724376/sonication-contribution-to-identifying-prosthetic-joint-infection-with-ralstonia-pickettii-a-case-report-and-review-of-the-literature
#13
Rares Mircea Birlutiu, Mihai Dan Roman, Razvan Silviu Cismasiu, Sorin Radu Fleaca, Crina Maria Popa, Manuela Mihalache, Victoria Birlutiu
BACKGROUND: In the context of an increase number of primary and revision total hip and total knee arthroplasty performed yearly, an increased risk of complication is expected. Prosthetic joint infection (PJI) remains the most common and feared arthroplasty complication. Ralstonia pickettii is a Gram-negative bacterium, that has also been identified in biofilms. It remains an extremely rare cause of PJI. There is no report of an identification of R. pickettii on an extracted spacer loaded with antibiotic...
July 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28723737/how-to-choose-when-implants-of-adjacent-height-both-fit-the-disc-space-properly-in-single-level-cervical-artificial-disc-replacement
#14
Xin Rong, Jigang Lou, Huibo Li, Yang Meng, Hao Liu
In cervical artificial disc replacement (C-ADR), sometimes we encountered with such cases that implants of adjacent height both fit the target disc space properly. No study was available discussing the choice of implant height and the clinical outcomes under such circumstance. The purpose of this study was to evaluate the impact of different implant heights on the clinical outcomes and radiographic results when the implants of adjacent height both fit the disc space properly. This retrospective study included 34 patients underwent single-level C-ADR at the C5-C6 level at our institution...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723700/pediatric-supracondylar-humerus-fractures-is-surgeon-experience-a-surrogate-for-the-need-of-open-reduction
#15
Mauricio Silva, Maria Kazantsev, Bianka Aceves Martin, Erin M Delfosse
Although there are many factors that are likely to influence the need for open reduction and percutaneous pinning (ORPF) in the treatment of pediatric supracondylar humerus fractures (SCHFs), the role of surgeon's experience (as represented by the total number of surgically treated SCHFs) on the need for ORPF has seldom been investigated. We reviewed the data on all completely displaced, pediatric SCHFs that were treated surgically by a single, fellowship-trained, pediatric orthopedic surgeon over the first 10 years of the surgeon's clinical practice...
July 18, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28722489/treatment-of-die-punch-fractures-with-3d-printing-technology
#16
Chunhui Chen, Leyi Cai, Chuanxu Zhang, Jianshun Wang, Xiaoshan Guo, Yifei Zhou
PURPOSE: We evaluated the feasibility, accuracy and effectiveness of applying three-dimensional (3D) printing technology for preoperative planning for die-punch fractures. METHODS: A total of 107 patients who underwent die-punch fracture surgery were enrolled in the study. They were randomly divided into two groups: 52 cases in the 3D model group and 55 cases in the routine group. A 3D digital model of each die-punch fracture was reconstructed in the 3D group. The 3D digital model was imported to a 3D printer to build the full solid model...
July 19, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28720423/undergraduate-clinical-teaching-in-orthopedic-surgery-a-randomized-control-trial-comparing-the-effect-of-case-based-teaching-and-bedside-teaching-on-musculoskeletal-osce-performance
#17
Martin Kelly, Iain Feeley, Fiona Boland, John M O'Byrne
INTRODUCTION: Musculoskeletal (MSK) complaints are the second most common reason for a hospital outpatient appointment in the US, and account for 19.5% of general practice consultations. Previous studies have shown that passive teaching in medical school does not imbue students with an adequate degree of confidence in MSK evaluation. The aim of this study was to conduct a randomized control trial to compare the effect of the gold standard small group tutorial of bedside teaching against case-based teaching (CBT) in relation to orthopedic surgery in medical students...
July 15, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28720091/clinical-and-imaging-outcome-of-osteochondral-lesions-of-the-talus-treated-using-autologous-matrix-induced-chondrogenesis-technique-with-a-biomimetic-scaffold
#18
Domenico Albano, Nicolò Martinelli, Alberto Bianchi, Carmelo Messina, Francesco Malerba, Luca Maria Sconfienza
BACKGROUND: The purpose of our study was to assess the clinical and imaging outcome of autologous matrix-induced chondrogenesis (AMIC) technique consisting of microfractures followed by the filling of osteochondral lesions of the talus (OLTs) with a cell-free biphasic collagen-hydroxyapatite osteochondral scaffold (MaioRegen). METHODS: Sixteen patients (eight males, age: 42.6 ± 18.4, range 14-74) with OLT repaired using AMIC technique, with implantation of MaioRegen, were clinically evaluated through the American Orthopedic Foot and Ankle Society Score (AOFAS) and a 10-point Visual Analogue Scale (VAS) pain score after a mean follow-up of 30 ± 16...
July 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28720040/distal-radius-fractures-aaos-appropriate-use-criteria-versus-actual-management-at-a-level-i-trauma-center
#19
James C Kyriakedes, Eugene Y Tsai, Douglas S Weinberg, Charles C Yu, Harry A Hoyen, Kevin Malone, Blaine T Bafus
BACKGROUND: The aim of this study is to determine whether the American Academy of Orthopaedic Surgeons' (AAOS) Appropriate Use Criteria (AUC) for distal radius fractures correlates with actual treatment by orthopedic hand surgeons at a level I trauma center. METHODS: ICD-9 codes were used to retrospectively identify patients who presented with wrist fractures over 1 year. Patients with isolated distal radius fractures were evaluated using the AAOS AUC application for distal radius fractures...
February 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28719992/does-mindfulness-correlate-with-physical-function-and-pain-intensity-in-patients-with-upper-extremity-illness
#20
Reinier B Beks, Jos J Mellema, Mariano E Menendez, Neal C Chen, David Ring, Ana Maria Vranceanu
BACKGROUND: Mindfulness skills training interventions seem efficacious in increasing physical function and decreasing pain intensity in patients with chronic pain. The relationship of mindfulness and upper extremity complaints in patients presenting to orthopedic surgical practices is not known. The aim of this study was to assess if mindfulness has a relationship to physical function and pain intensity in patients with upper extremity illness. METHODS: In this cross-sectional study, a total of 126 patients with a nontraumatic upper extremity condition were asked to fill out questionnaires assessing the 5 facets of mindfulness, pain intensity, and upper extremity physical function, along with clinical and demographic variables prior to their visit with the surgeon...
March 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
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