نتایج جستجو برای: acrylic bone cement

تعداد نتایج: 338209  

Journal: :Ultrasonics 2015
Christopher P Hagan John F Orr Christina A Mitchell Nicholas J Dunne

Currently there is no reliable objective method to quantify the setting properties of acrylic bone cements within an operating theatre environment. Ultrasonic technology can be used to determine the acoustic properties of the polymerising bone cement, which are linked to material properties and provide indications of the physical and chemical changes occurring within the cement. The focus of th...

Journal: :Journal of materials science. Materials in medicine 2014
James Clements Gavin Walker Sreekanth Pentlavalli Nicholas Dunne

The initial composition of acrylic bone cement along with the mixing and delivery technique used can influence its final properties and therefore its clinical success in vivo. The polymerisation of acrylic bone cement is complex with a number of processes happening simultaneously. Acrylic bone cement mixing and delivery systems have undergone several design changes in their advancement, althoug...

Journal: :medical journal of islamic republic of iran 0
hossein farahini orthopedic surgeon and fellowship of knee and arthroscopy, rasool akramسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)سازمان های دیگر: rasool akram mehdi ghorbani rasool akram general hospital.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) ehsan akbarian shahid beheshti university of medical sciences.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

abstract objective: the aim of this study was to evaluate the efficacy of antibiotic-loaded bone cement in controlling local infection and in regard to its physical characteristics, elastic modulus, and tensile strength in-vitro. methods: acrylic bone cement, based on polymethylmethacrylate (pmma) was mixed with the powder form of three antibiotics, i.e., gentamicin, tobramycin, and cefuroxime ...

2015

The genesis and evolution of acrylic bone cement. Otto Röhm is known as the developer of polymethylmethacrylate PMMA in 1901. Preparation and Characterization of Injectable Brushite. Filled-Poly Methyl Methacrylate Bone Cement. Rodriguez 1, Jonathan Chari.Bone cement implantation syndrome. 1Department of Anaesthesia, University Hospital of. Problems with modern bone cements such as the loosenin...

2009

INTRODUCTION Acrylic bone cements, used in arthroplasty, incorporates contrast media to make them radiopaque and visible on X-ray images. However, today’s particulate contrast media cause three disadvantages to the acrylic bone cement, namely; third body wear, decreased mechanical properties and reduced biocompatibility. Iohexol hexaacetate (IHA) is a new iodide based non-ionic contrast medium,...

Journal: :Journal of spinal disorders & techniques 2010
Majid Reza Farrokhi Simin Torabinezhad Korush Azodi Ghajar

STUDY DESIGN An experimental pilot study using an acrylic interbody cage in a dog cervical spine fusion model. OBJECTIVE To compare bony fusion in autologous bone grafting with a novel acrylic cage in terms of preservation of disc height, biomechanical properties, and histologic characteristics. SUMMARY OF BACKGROUND DATA Degenerative diseases of cervical intervertebral discs are commonly t...

Journal: :Advanced healthcare materials 2015
A Sydney Gladman Asha-Dee N Celestine Nancy R Sottos Scott R White

Self-healing in orthopedic bone cement is demonstrated with a novel thermoplastic solvent-bonding approach. Low toxicity solvent-filled microcapsules, embedded in a commercial acrylic bone cement matrix, enable recovery of up to 80% of the virgin fracture toughness of the cement at room and body temperature conditions without external stimuli or human intervention.

Journal: :Biomechanics and modeling in mechanobiology 2014
Ingrid Ajaxon Cecilia Persson

Acrylic bone cements are widely used for fixation of joint prostheses as well as for vertebral body augmentation procedures of vertebroplasty and balloon kyphoplasty, with the cement zone(s) being subjected to repeated mechanical loading in each of these applications. Although, in vertebroplasty and balloon kyphoplasty, the cement zone is exposed to mainly cyclical compressive load, the compres...

2013

STUDY DESIGN: An experimental pilot study using an acrylic interbody cage in a dog cervical spine fusion model. OBJECTIVE: To compare bony fusion in autologous bone grafting with a novel acrylic cage in terms of preservation of disc height, biomechanical properties, and histologic characteristics. SUMMARY OF BACKGROUND DATA: Degenerative diseases of cervical intervertebral discs are commonly tr...

2004
M. A. Rosa G. Maccauro A. Sgambato R. Ardito G. Falcone V. De Santis F. Muratori

©2003 British Editorial Society of Bone and Joint Surgery doi:10.1302/0301-620X.85B5.13588 $2.00 n increased long-term survival of patients with malignant tumours also increases the possibility of the development of skeletal metastases and pathological fractures. The management of bone metastases includes the removal of gross disease and the administration of local adjuvants. We have investigat...

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