Reasons using a Ceramic Femoral Component and First Clinical Experience

Benazzo, Francesco; Pria, P. Dalla; Mittelmeier, Wolfram; Tigani, Domenico; Zorzi, Claudio; Ganzer, D.; Lohmann, Christoph H.; Cimbrelo, E. Garcia; Merchan, Cristian; Saura, E; Lizaur, A.; Couceiro, José; Burelli, S.

doi:10.1007/978-3-7985-1783-7_19

Bioceramics and Alternative Bearings in Joint Arthroplasty 2007

DOI: 10.1007/978-3-7985-1783-7_19

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Reasons using a Ceramic Femoral Component and First Clinical Experience

Francesco Benazzo¹,

P. Dalla Pria²,

Wolfram Mittelmeier³

et al.

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Cited by 3 publications

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Bioactive coating of zirconia toughened alumina ceramic implants improves cancellous osseointegration

Pobloth

Mersiowsky

Kliemt

et al. 2019

Sci Rep

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Bioactive coatings have the potential to improve the bony integration of mechanically loaded orthopedic ceramic implants. Using the concept of mimicking the natural bone surface, four different coatings of varying thickness on a zirconia toughened alumina (ZTA) ceramic implant were investigated regarding their osseointegration in a drill-hole model in sheep. The hypothesis that a bioactive coating of ZTA ceramics would facilitate cancellous bone integration was investigated. The bioactive coatings consisted of either a layer of covalently bound multi phosphonate molecules (chemical modification = CM), a nano hydoxyapatite coating (HA), or two different bioactive glass (BG) coatings in micrometer thickness, forming a hydroxyl-carbonate apatite layer on the implant surface in vivo (dip-coated 45S5 = DipBG; sol-gel 70S30C = SGBG). Coated surfaces were characterized by scanning electron microscopy and X-ray photoelectron spectroscopy. After 12 weeks, osseointegration was evaluated via mechanical push-out testing and histology. HA enhanced the maximum push-out force (HA: mean 3573.85 ± 1119.91 N; SGBG: mean 1691.57 ± 986.76 N; p = 0.046), adhesive shear strength (HA: mean 9.82 ± 2.89 MPA; SGBG: mean 4.57 ± 2.65 MPA; p = 0.025), and energy release rate (HA: mean 3821.95 ± 1474.13 J/mm2; SGBG: mean 1558.47 ± 923.47 J/mm2; p = 0.032) compared to SGBG. The implant-bone interfacial stiffness increased by CM compared to SGBG coating (CM: mean 6258.06 ± 603.80 N/mm; SGBG: mean 3565.57 ± 1705.31 n/mm; p = 0.038). Reduced mechanical osseointegration of SGBG coated implants could be explained histologically by a foreign body reaction surrounding the implants.

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Bioactive coating of zirconia toughened alumina ceramic implants improves cancellous osseointegration

Pobloth

Mersiowsky

Kliemt

et al. 2019

Sci Rep

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History, Present and Future of Knee Arthroplasty

Прохоренко

Мамедов

Baitov

2016

N.N. Priorov Journal of Traumatology and Orthopedics

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The review covers different aspects of knee joint arthroplasty. With improvement of arthroplasty techniques the joint implants are constantly perfected: the more strong alloys with high biocompatibility are used for their production, design is developed using mathematical models, endoprosthesis friction node are subjected to long-term bench testing. All these innovations are directed at the improvement of implant quality, increase of their survival time, minimization of toxic effect on the patient’s organism. Taking into account all advantages and disadvantages of the available joint implants with different design and various friction pairs being detected from literature data and by our experience it was concluded that elaboration of joint implant with increased wear resistance is required.

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History, Present and Future of Knee Arthroplasty

Прохоренко

Мамедов

Baitov

2016

Vestn. travmatol. ortop. im. N.N. Priorova

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Reasons using a Ceramic Femoral Component and First Clinical Experience

Cited by 3 publications

References 12 publications

Bioactive coating of zirconia toughened alumina ceramic implants improves cancellous osseointegration

Bioactive coating of zirconia toughened alumina ceramic implants improves cancellous osseointegration

History, Present and Future of Knee Arthroplasty

History, Present and Future of Knee Arthroplasty

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