نتایج جستجو برای: orthopedic implant
تعداد نتایج: 61032 فیلتر نتایج به سال:
Whether Propionibacterium acnes (P. acnes) causes surgical-site infections (SSI) after orthopedic surgery is controversial. We previously reported that we frequently find P. acnes in intraoperative specimens, yet none of the patients have clinically apparent infections. Here, we tracked P. acnes for 6 months in a mouse osteomyelitis model. We inoculated P. acnes with an implant into the mouse f...
Architected materials are increasingly applied in form of lattice structures to biomedical implant design for the purpose optimizing implant’s biomechanical properties. Since porous affects resulting properties implant, its parameters being investigated by numerous research articles. The design-related unit cells a strut-architected material mainly pore size and strut thickness. Until today, re...
Although magnesium (Mg) is a unique biodegradable metal which possesses mechanical property similar to that of the natural bone and can be an attractive material to be used as orthopedic implants, its quick corrosion rate restricts its actual clinical applications. To control its rapid degradation, we have modified the surface of magnesium implant using fluoridated hydroxyapatite (FHA: Ca10(PO4...
Advanced multifunction titanium (Ti) based bone implant with antibacterial, angiogenic and osteogenic activities is stringently needed in clinic, which may be accomplished via incorporation of proper inorganic bioactive elements. In this work, microporous TiO2/calcium-phosphate coating on Ti doped with strontium, cobalt and fluorine (SCF-TiCP) was developed, which had a hierarchical micro/nano-...
While titanium has been clinically successful as an orthopedic or dental implant material, performance problems still persist related to implant-bone interfacial strength and mechanical modulus mismatch between titanium and tissue. We describe here the preparation of a titanium foam as a better mechanical match to tissue with surfaces attractive to bone cells through deposition of an organicall...
Since the discovery of piezoelectric properties of natural bone, electrical stimulation has been widely used in the clinical treatment of orthopedic fracture. Nevertheless, in dental implant technologies, it is the methods of surface modification that has been recently developed to enhance early osteointegration between implant’s surface and surrounding tissue. In this paper, in order to accele...
Study of the implant-tissue interface is one of the fundamental issues in implantology, both odontologic and orthopedic. The characteristics of this interface will influence the success or failure of an implant. The aim of the present study was to evaluate histomorphometrically the capacity of different metals to osseointegrate employing laminar implants of zirconium, titanium, aluminum, and zi...
Preparation Methods for Improving PEEK's Bioactivity for Orthopedic and Dental Application: A Review
There is an increased interest in the use of polyether ether ketone (PEEK) for orthopedic and dental implant applications due to its elastic modulus close to that of bone, biocompatibility, and its radiolucent properties. However, PEEK is still categorized as bioinert due to its low integration with surrounding tissues. Many studies have reported on methods to increase the bioactivity of PEEK, ...
UNLABELLED ABSTRUCT: Mesenchymal stem cells (MSCs) hold great promise as therapeutic agents in regenerative medicine. Numerous animal studies have documented the multipotency of MSCs, showing their capabilities for differentiating into orthopedic tissues such as muscle, bone, cartilage, and tendon. However, the complication rate for autologous MSC therapy is only now beginning to be reported. ...
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