keyword
MENU ▼
Read by QxMD icon Read
search

Bone cement

keyword
https://www.readbyqxmd.com/read/28739433/pain-management-the-rising-role-of-interventional-oncology
#1
D Filippiadis, S Tutton, A Kelekis
Patients with early or metastatic cancer may suffer from pain of different origins. The vast majority of these patients are not adequately treated by means of systemic analgesia and radiotherapy. Percutaneous neurolysis is performed using chemical agents or thermal energy upon sympathetic nervous system plexus for pain reduction and life quality improvement. Ablation and vertebral augmentation are included in clinical guidelines for metastatic disease. As far as the peripheral skeleton is concerned bone augmentation and stabilization can be performed by means of cement injection either solely performed or in combination to cannulated screws or other metallic or peek implants...
July 21, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28737897/biogenic-hydroxyapatite-a-new-material-for-the-preservation-and-restoration-of-the-built-environment
#2
Ronald Joseph Turner, Joanna C Renshaw, Andrea Hamilton
Ordinary Portland Cement (OPC) is by weight the world's most produced man-made material, and consequently is used in a variety of applications in environments ranging from buildings, to nuclear wasteforms, and within the human body. In this paper, we present for the first time the direct deposition of biogenic hydroxyapatite onto the surface of OPC, in a synergistic process which relies upon the unique properties of the cement substrate. The synthesised hydroxyapatite is very similar to that found in nature; having a crystallite size, iron and carbonate substitution, and a semi-crystalline structure which identify that this biogenic hydroxyapatite is akin to that found in natural bone and tooth enamel...
July 24, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28736374/-low-cement-distribution-index-is-a-risk-factor-for-refracture-of-the-adjacent-segments-after-percutaneous-vertebroplasty
#3
Zhao-Zong Fu, Zhong-Xian Chen, Ying Qin, Zhi-Qiang Feng, Xiong-Jian Jiang, Qing-Hua Xie, Yi-Tao Liu
OBJECTIVE: To investigate the impact of cement distribution index on the occurrence of refracture in the adjacent segments after percutaneous vertebroplasty. METHODS: This retrospective analysis was conducted among 143 patients who received percutaneous vertebroplasty for osteoporotic vertebral compression fracture between April, 2011 and April, 2014. Of the 134 patients with complete follow-up data, 18 had adjacent segment fracture within 1 year following the surgeries (re-fracture group), and 116 patients without new fracture served as the control group...
July 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28736355/c2-bone-erosion-secondary-to-iatrogenic-pseudomeningocele-a-case-report-and-description-of-a-novel-surgical-technique
#4
Stephan N Salzmann, Lukas P Lampe, Brian Fernholz, Roger Härtl, Athos Patsalides, Alexander P Hughes
BACKGROUND: Pseudomeningoceles are a rare cause of bone erosions. Development of such erosions in the C2 vertebral body and the odontoid process can lead to life-threatening instability. Treatment options to regain stability include atlantoaxial and occipitocervical fusion. For patients with a history of Chiari decompression and large C2 lesions, common fusion techniques are not always feasible. Additionally fusion surgery sacrifices physiologic motion and is therefore a disabling procedure, especially for young and active patients...
July 20, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28736126/outcomes-following-osteosynthesis-of-periprosthetic-hip-fractures-around-cemented-tapered-polished-stems
#5
S T Goudie, S Patil, J T Patton, J F Keating
We retrospectively reviewed outcomes of 79 patients with periprosthetic hip fractures around cemented tapered polished stem (CTPS) implants treated with osteosynthesis between January 1997 and July 2011. All patients underwent open reduction and fixation using a broad dynamic compression plate (DCP). Seventy two (91%) of fractures united. There were seven (9%) non-unions with failure of metal work, three (4%) as a result of infection and four (5%) due to mechanical failure. Significant subsidence (>5mm) of the implant was seen in seven (9%) of cases...
July 12, 2017: Injury
https://www.readbyqxmd.com/read/28735655/an-intramedullary-nail-coated-with-antibiotic-and-growth-factor-nanoparticles-an-individualized-state-of-the-art-treatment-for-chronic-osteomyelitis-with-bone-defects
#6
Roberto Berebichez-Fridman, Pablo Montero-Olvera, Ricardo Gómez-García, Enrique Berebichez-Fastlicht
Among various infections, chronic osteomyelitis is one of the most challenging in terms of treatment. This infection is more common among patients with open fractures and those who have undergone elective orthopedic procedures. The treatment of osteomyelitis requires high antibiotic doses and an aggressive and multifaceted surgical approach. The use of parenteral antibiotics alone, without debridement, is not sufficiently effective, due to the formation of sequestra and the low vascularity of the affected area...
August 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28735526/the-biocompatibility-of-bone-cements-progress-in-methodological-approach
#7
Carlo Dall'Oca, Tommaso Maluta, Gian Mario Micheloni, Matteo Cengarle, Giampaolo Morbioli, Paolo Bernardi, Andrea Sbarbati, Daniele Degl'Innocenti, Franco Lavini, Bruno Magnan
The ideal bone graft substitute should have certain properties and there are many studies dealing with mixture of polymethylmetacrilate (PMMA) and β-tricalciumphospate (β-TCP) presenting the best characteristics of both. Scanning Electron Microscopy (SEM), for ultra-structural data, resulted a very reliable in vivo model to better understand the bioactivity of a cement and to properly evaluate its suitability for a particular purpose. The present study aims to further improve the knowledge on osteointegration development, using both parameters obtained with the Environmental Scanning Electron Microscopy (ESEM) and focused histological examination...
May 4, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28735216/elastic-properties-and-strain-to-crack-initiation-of-calcium-phosphate-bone-cements-revelations-of-a-high-resolution-measurement-technique
#8
Ingrid Ajaxon, Alice Acciaioli, Giacomo Lionello, Maria-Pau Ginebra, Caroline Öhman-Mägi, Massimiliano Baleani, Cecilia Persson
Calcium phosphate cements (CPCs) should ideally have mechanical properties similar to those of the bone tissue the material is used to replace or repair. Usually, the compressive strength of the CPCs is reported and, more rarely, the elastic modulus. Conversely, scarce or no data are available on Poisson's ratio and strain-to-crack-initiation. This is unfortunate, as data on the elastic response is key to, e.g., numerical model accuracy. In this study, the compressive behaviour of brushite, monetite and apatite cements was fully characterised...
June 21, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28735136/spinal-instability-predictive-scoring-system-for-subsequent-fractures-after-bone-cement-augmentation-in-patients-with-osteoporotic-vertebral-compression-fractures
#9
Heun Sung Kim, Chang Il Ju
OBJECTIVE: Bone cement augmentation procedures (vertebroplasty and kyphoplasty) are the primary treatments for osteoporotic vertebral compression fractures (VCFs). However, these procedures are associated with various problems resulting in subsequent fractures. The purpose of this study was to evaluate the spinal instability factors related to subsequent fractures after vertebral augmentation procedures. METHODS: We retrospectively reviewed patients who underwent augmentation procedures for osteoporotic VCFs...
July 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28727717/percutaneous-vertebroplasty-for-primary-non-hodgkin-s-lymphoma-of-the-thoracic-spine-case-report-and-review-of-the-literature
#10
Pu Jia, JinJun Li, Hao Chen, Li Bao, Fei Feng, Hai Tang
Primary non-Hodgkin's lymphoma of the vertebra is rare in the spine of the elderly. The clinical presentation and radiological features are unspecific, which make it more difficult for diagnosis. We report a case of a 79-year-old woman complaining of serious backache without any injury. The magnetic resonance imaging (MRI) showed invasion of the fifth thoracic vertebra with the posterior vertebral body wall defect. There was a high suspicion that the patient had a metastatic tumor of the vertebra. A percutaneous vertebroplasty was performed under fluoroscopic guidance, which was used to treat the osteoporotic vertebral compression fracture, vertebral metastases, verte-bral hemangioma, and multiple myeloma...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28723917/evidence-base-and-practice-variation-in-acute-care-processes-for-knee-and-hip-arthroplasty-surgeries
#11
Marcel Mayer, Justine Naylor, Ian Harris, Helen Badge, Sam Adie, Kathryn Mills, Joseph Descallar
BACKGROUND: Lack of evidence contributes to unnecessary variation in treatment costs and outcomes. This study aimed to identify from interventions historically used for total knee or hip arthroplasty (TKA, THA): i) if routine use is supported by high-level evidence; ii) whether surgeon use aligns with the evidence. METHODS: Part 1: Systematic search of electronic library databases for systematic reviews and practice guidelines concerning seven acute-care interventions...
2017: PloS One
https://www.readbyqxmd.com/read/28723749/effects-of-sealing-the-intramedullary-femoral-canal-in-total-knee-arthroplasty-a-randomized-study
#12
Xu Li, Xiang-Bei Qi, Xue Han, Wei Wang, Jian-Ning Liu, Ji-Chao Guo, Zhi-Yong Li
BACKGROUND: This study investigates the clinical effects of sealing the femoral canal by intramedullary alignment instrumentation in total knee arthroplasty (TKA). METHODS: One hundred twenty consecutive patients with knee osteoarthritis, who underwent unilateral TKA, were enrolled in the study and equally randomized into 2 groups: the sealing group and the control group. In the sealing group, the femoral canal was sealed with autogenous bone and cement using intramedullary alignment instrumentation, while the femoral hole was left open for patients in the control group...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28722169/prognosis-based-shoulder-hemiarthroplasty-after-resection-of-proximal-humeral-malignancy
#13
Chao-Ming Chen, Po-Kuei Wu, Shang-Wen Tsai, Cheng-Fong Chen, Wei-Ming Chen
After wide excision of proximal humeral bony malignancy, prognosis-based reconstruction was performed at Taipei Veterans General Hospital. Bone prosthesis composite (BPC) was carried out among patients with a favored prognosis, while cement-spacer prosthesis composite (CSPC) was preserved for patients with poor prognosis. The aim of our study is to compare the clinical outcomes between the BPC and CSPC reconstruction procedures. From January 2000 to December 2014, we retrospectively reviewed the clinical outcomes of 34 patients who underwent shoulder hemiarthroplasty following wide excision of a malignant lesion of the proximal humerus, 15 of whom were treated with a BPC reconstruction and 19 cases were treated with a CSPC reconstruction...
July 19, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28721601/high-survivorship-and-few-complications-with-cementless-total-wrist-arthroplasty-at-a-mean-followup-of-9-years
#14
Joseph A Gil, Robin N Kamal, Eugene Cone, Arnold-Peter C Weiss
BACKGROUND: Total wrist arthroplasty (TWA) has been described as traditionally being performed with fixation in the radius and carpus with cement. The TWA implant used in our series has been associated with promising results in studies with up to 6 years followup; however, studies evaluating survivorship, pain, and function with this implant are limited. QUESTION/PURPOSE: (1) To report ROM and pain scores after wrist reconstruction with cementless fourth-generation TWA at a mean followup of 9 years (range, 4...
July 18, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28719779/cement-casting-to-optimize-reconstruction-of-chronic-osteochondral-lesions-of-the-talus
#15
Jorge Pulgar, Mario Escudero, Giovanni Carcuro, Adam Schiff, Manuel Pellegrini
Few surgical techniques have been described for reconstruction in massive osteochondral lesions of the talus, and there is limited evidence of techniques for accurately reproducing native talar anatomy with bone auto/allograft techniques. In this article, we present a novel technique, which is highly reproducible, using bone cement to restore the congruence and anatomy of the ankle joint. LEVELS OF EVIDENCE: Level V: Technical tip.
August 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28717644/optimization-of-a-functionally-graded-material-stem-in-the-femoral-component-of-a-cemented-hip-arthroplasty-influence-of-dimensionality-of-fgm
#16
Abdellah Ait Moussa, Rohan Yadav
The longevity of hip prostheses is contingent on the stability of the implant within the cavity of the femur bone. The cemented fixation was mostly adopted owing to offering the immediate stability from cement-stem and cement-bone bonding interfaces after implant surgery. Yet cement damage and stress shielding of the bone were proven to adversely affect the lifelong stability of the implant, especially among younger subjects who tend to have an active lifestyle. The geometry and material distribution of the implant can be optimized more efficiently with a three-dimensional realistic design of a functionally graded material (FGM)...
2017: Journal of Medical Engineering
https://www.readbyqxmd.com/read/28713731/magnetic-field-effects-on-bone-repair-after-calcium-phosphate-cement-implants-histometric-and-biochemistry-evaluation
#17
Thiago Calcagnotto, Marcos Miguel Bechstedt Schwengber, Carlos Cesar De Antoni, Danilo Louzada de Oliveira, Théssio Mina Vago, Jessica Guilinelli
OBJECTIVE: This work evaluated histologic and biochemically the effect of magnetic field buried in bone repair after autogenous bone graft and calcium phosphate cement implants. METHODOLOGY: Bone defects with 5,0 mm of diameter in the cranium of Wistar mice were used to analyse. These mice were submitted to different interventions: autogenous bone graft and calcium phosphate cement implants, both with and without magnetic stimulation. Longitudinal and transversal histometric and biochemistry analysis were made in times of 15, 30 and 60 post-operative days...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28712488/staged-reconstruction-of-diaphyseal-fractures-with-segmental-defects-surgical-and-patient-reported-outcomes
#18
S D Zoller, L A Cao, R A Smith, W Sheppard, E L Lord, C D Hamad, J H Ghodasra, C Lee, D Jeffcoat
INTRODUCTION: Two-stage limb reconstruction is an option for patients with critical size segmental bone defects following acute trauma or non-union. Reconstruction is technically demanding and associated with a high complication rate. Current protocols for limb reconstruction have well-documented challenges, and no study has reported on patient outcomes using a validated questionnaire. In this study, we aimed to examine the clinical and patient-centered outcomes following our surgical protocol for two-stage limb reconstruction following critical size segmental defects...
June 23, 2017: Injury
https://www.readbyqxmd.com/read/28711589/fixation-strength-of-a-polyetheretherketone-femoral-component-in-total-knee-arthroplasty
#19
Lennert de Ruiter, Dennis Janssen, Adam Briscoe, Nico Verdonschot
INTRODUCTION: Introducing polyetheretherketone (PEEK) polymer as a material for femoral components in total knee arthroplasty (TKA) could potentially lead to a reduction of the cemented fixation strength. A PEEK implant is more likely to deform under high loads, rendering geometrical locking features less effective. Fixation strength may be enhanced by adding more undercuts or specific surface treatments. The aim of this study is to measure the initial fixation strength and investigate the associated failure patterns of three different iterations of PEEK-OPTIMA(®) implants compared with a Cobalt-Chromium (CoCr) component...
July 12, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28711338/in-vitro-cytocompatibility-of-dental-resin-monomers-on-osteoblast-like-cells
#20
Dominik Kraus, Markus Wolfgarten, Norbert Enkling, Ernst-Heinrich Helfgen, Matthias Frentzen, Rainer Probstmeier, Jochen Winter, Helmut Stark
OBJECTIVES: Dental resin-based materials are widely used in modern dentistry. Especially, resin cements enjoy great popularity and are utilized in many applications. Nevertheless, monomers could be released from the resinous matrix, thus interact with surrounding tissues, cause adverse biological reactions and may lead in cases of implant retained restorations to peri-implant bone destruction. Hence, we performed an in-vitro study to determine cytotoxicity of resin monomers on osteoblast-like cells...
July 12, 2017: Journal of Dentistry
keyword
keyword
33922
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"