Osteoconductive Coatings for Total Joint Arthroplasty

Geesink, R. G. T.

doi:10.1097/00003086-200202000-00007

Cited by 256 publications

(157 citation statements)

References 87 publications

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“…on THR stems) to enhance bony fixation. CPC osteoconductive coatings are a well established technology in joint replacements and long term follow-ups confirm the results obtained in early works [28]. CPC are a family of compound with different in vivo behaviour depending on a number of parameters especially on Ca/P ratio the most stable being Hydroxyapatite Ca 10 (PO 4 ) 6 (OH) 2 [29].…”

Section: Calcium Phosphate Ceramicssupporting

confidence: 71%

Biomaterials for Total Joint Replacements

Prever

Costa

Piconi

et al. 2016

Biomechanics and Biomaterials in Orthopedics

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Section: Calcium Phosphate Ceramicssupporting

confidence: 71%

Biomaterials for Total Joint Replacements

Prever

Costa

Piconi

et al. 2016

Biomechanics and Biomaterials in Orthopedics

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“…This technique covers the bone cement with HA granules at the interface, producing a custom-made HA-coated cemented implant. Because the HA used for cementless HA-coated prostheses contains amorphous HA in part [26], this type of HA is absorbed in the years following surgery [7]. In contrast, the HA granules in our technique are pure crystal and were scarcely absorbed [4,25], suggesting the osteoconductive activity can continue indefinitely even after the onset of osteoporosis due to aging.…”

Section: Discussionmentioning

confidence: 87%

THA with Hydroxyapatite Granules at Cement-Bone Interface

Ohashi

Oonishi

Kim

2008

Clinical Orthopaedics &Amp; Related Research

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To augment cement-bone bonding, we interposed hydroxyapatite granules at the cement-bone interface (bioactive bone cement technique). Hydroxyapatite granules (2-3 g) were smeared on the bone surface of the acetabulum and femur just before cementing. We used porous hydroxyapatite granules 300 to 500 lm in diameter from 1986 to 1988 (first generation) and granules 100 to 300 lm in diameter from 1989 to 1991 (second generation). We followed 151 patients (222 hips) in the first generation and 170 patients (252 hips) in the second generation. The minimum followup was 15 years (mean, 17.3 years; range, 15-20 years). Radiolucent lines or spaces less than 1 mm were observed in four hips (1.8%) in the first generation and in 15 hips (6.2%) in the second generation. Osteolysis was observed in one hip (0.5%) in the first generation and six hips (1.6%) in the second generation. We observed loosening in two cups (0.8%) in the second generation. The long-term clinical results suggest the interface bioactive bone cement technique combined with our other techniques results in low incidences of radiolucent lines (spaces) and osteolysis, and may increase the longevity of cemented THA. The data suggest the larger hydroxyapatite granules performed better than smaller ones.

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“…This correlation was true for grain sizes between 7.5 and 220 μm. Particles with distorted geometries found out to be having not an impact on improvement for the retention capacity of the implants [13]. In our study first group specimen blasted with titanium oxide (TiO2) particles approximately 150 μm in diameter with a blast pressure of 4 Bar for 40 seconds.…”

Section: Implant Specimensmentioning

confidence: 78%

“…At the beginning of the study, all specimens were blasted to increase surface roughness. From recent in vivo and in vitro studies it can be easily understood that increasing surface roughness enables bone colonization on the implant which provides implant fixation [13,14]. Grit blasting method enabled proper geometries on the implant surface for tissue formation [15,16].…”

Section: Implant Specimensmentioning

confidence: 99%

Measurement and image processing evaluation of surface modifications of dental implants G4 pure titanium created by different techniques

Bulutsuz¹,

Demircioglu²,

Böğrekçi³

et al. 2015

AIP Conference Proceedings

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Abstract. Foreign substances and organic tissue interaction placed into the jaw in order to eliminate tooth loss involves a highly complex process. Many biological reactions take place as well as the biomechanical forces that influence this formation. Osseointegration denotes to the direct structural and functional association between the living bone and the load-bearing artificial implant's surface. Taking into consideration of the requirements in the manufacturing processes of the implants, surface characterizations with high precise measurement techniques are investigated and thus long-term success of dental implant is emphasized on the importance of these processes in this study. In this research, the detailed surface characterization was performed to identify the dependence of the manufacturing techniques on the surface properties by using the image processing methods and using the scanning electron microscope (SEM) for morphological properties in 3D and Taylor Hobson stylus profilometer for roughness properties in 2D. Three implant surfaces fabricated by different manufacturing techniques were inspected, and a machined surface was included into the study as a reference specimen. The results indicated that different surface treatments were strongly influenced surface morphology. Thus 2D and 3D precise inspection techniques were highlighted on the importance for surface characterization. Different image analyses techniques such as Dark-light technique were used to verify the surface measurement results. The computational phase was performed using image processing toolbox in Matlab with precise evaluation of the roughness for the implant surfaces. The relationship between the number of black and white pixels and surface roughness is presented. FFT image processing and analyses results explicitly imply that the technique is useful in the determination of surface roughness. The results showed that the number of black pixels in the image increases with increase in surface roughness.

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Osteoconductive Coatings for Total Joint Arthroplasty

Cited by 256 publications

References 87 publications

Biomaterials for Total Joint Replacements

Biomaterials for Total Joint Replacements

THA with Hydroxyapatite Granules at Cement-Bone Interface

Measurement and image processing evaluation of surface modifications of dental implants G4 pure titanium created by different techniques

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