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Showing 1 to 16 of 16 for “"bone ingrowth"”.
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Validation of numerical prediction of bone ingrowth into cementless implants
… implants. These implants depend on the ingrowth of bone into a porous coating, to produce a durable method of implant fixation which the normal bone turnover process will maintain. One of the problems with cementless implants is that the type and extent of tissue ingrowth into the porous …
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Effect of pore size on bone ingrowth into porous titanium implants fabricated by additive manufacturing: An in vivo experiment
Subscription articles: Theses and dissertations which contain embedded PJAs as part of the formal submission can be posted publicly by the awarding institution with DOI links back to the formal publications on ScienceDirect.doi:10.1016/j.msec.2015.10.069
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Processing-structure-property relationships of surface porous polymers for orthopaedic applications
… in tunable porous microstructures optimized for bone ingrowth: highly interconnected 200-500µm pores with porosity ranging from 60-85% and pore layers from 300-6000µm thick. Mechanical characterization, including monotonic tensile and compression, tensile fatigue, shear, and abrasion tests, were …
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Evaluation of biocompatible osteoconductive polymer (BOP) as an osteconductive implant
… (BOP) fiber (n = 16), autogenous cancellous bone from the proximal femur (n = 4) or proximal humerus (n = 7), or no treatment (n = 5). BOP block was attached extraperiosteally to the proximal humerus in 7 dogs. Surgery sites were evaluated radiographically at 4 week intervals, and …
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In-vivo-Testung eines neuartigen bFGF/TCP-Composite
Autologous bone graft is the golden standard for bone replacement materials. Unfortunately it is limited and has side effects in about 10%. Aim of the study was to determine bone-regenerative effects of a new bFGF/TCP-composite, consisting of basic fibroblast growth factor and a newly developed, …
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Flexible adaptation of iterative learning control with applications to synthetic bone graft manufacturing
… in fabricating advanced architecture synthetic bone grafts. These bone grafts, also known as synthetic bone scaffolds, are highly porous three-dimensional structures that provide a matrix to support the natural process of bone remodeling. Ideally, the synthetic scaffold will stimulate complete …
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Osseointegration of a Cementless Total Knee Arthroplasty in a Murine Model of Glucocorticoid Induced Osteoporosis
… deficient osteoblast activity (i.e., decreased bone formation) rather than increased osteoclastic activity. Glucocorticoid-type steroids (GC) are used long-term typically for inflammatory diseases such as rheumatoid arthritis, lupus, multiple sclerosis, and other autoimmune disorders. …
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The effect of pore size and porosity on capillary pressure in microporous hydroxyapatite samples
… (HA) scaffolds is known to improve bone ingrowth. The mechanism for the improvement is thought to be in part due to capillary forces induced by the micropores. The micropore-induced capillary forces can self load cells into the scaffolds. In this study, the effect of micropore size …
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Long-term osteointegration of BMP-2 eluting hydroxyapatite scaffolds for bone tissue engineering
… and tumor resections can result in discontinuity bone defects, which are typically treated through bone grafting. Potential limitations, such as donor site morbidity, make the development of synthetic implants with similar success to current techniques an attractive alternative for the repair of …
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Wear of ultra-high molecular weight polyethylene manufactured with laser powder bed fusion
… which reduces stress-shielding and promotes bone ingrowth, thus reducing potential complications. However, AM of the polyethylene tibial insert has not yet been achieved, yet it is crucial to implement patient-specific implants because it defines the knee kinematics. The low melting point of …
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Herstellung von Knochenimplantaten aus Titanwerkstoffen durch Laserformen
… insufficient interconnection between the natural bone and the implant.Available standard implants do not cover a large number of individual bone defects which are likely to appear after bone cancer resection or severe trauma. In these cases complex and individual implants are required within a …
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Untersuchungen zu verschiedenen Füllungskomponenten eines porösen, keramischen Knochenersatzstoffes auf Basis von TiO2 und Glas und deren Auswirkungen auf das Einwachsverhalten in vitales Knochengewebe
The substitution of bone tissue is necessary in case of traumatic tissue infraction, after degenerative processes of the skeletal system and finally in all endoprothetic interventions. Respective in the research of open-porous ceramics many experimental and clinical trials confirmed that …
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Numerical simulation of implant-bone interaction following cementless joint replacement
… bond between the prosthesis and the surrounding bone remains a considerable problem. As a result, cementless implants have been developed. These components rely on the ingrowth of bone into a porous coating, which covers a portion of the component surface, to achieve the required mechanical …
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Computational simulation of bone remodelling post reverse total shoulder arthroplasty
Bone is a living material. It adapts, in an optimal sense, to loading by changing its density and trabeculae architecture - a process termed remodelling. Implanted orthopaedic devices can significantly alter the loading on the surrounding bone. In addition, these devices rely on bone ingrowth to …
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Experimental and Numerical Investigation of the Micromechanical Behavior of Selective Laser Melted Ti-6Al-4V Cellular Lattices for Biomedical Applications
… particularly attractive for the manufacturing of bone prosthetics since, compared to traditional fully dense implants, although more complex to produce and with less predictable properties, implants with a highly porous structure can be manufactured to match the bone stiffness and at the same time …