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Saverio Affatato
Istituto Nazionale di Fisica Nucleare
CeramicComposite materialMaterials scienceArthroplastyPolyethylene
172Publications
25H-index
2,126Citations
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Publications 175
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#1Saverio AffatatoH-Index: 25
#2Maria Cristina Valigi (University of Perugia)H-Index: 6
Last. Silvia Logozzo (University of Perugia)H-Index: 8
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It is well known that wear occurring in polyethylene menisci is a significant clinical problem. At this regard, wear tests on biomaterials medical devices are performed in order to assess their pre-clinical performance in terms of wear, durability, resistance to fatigue, etc. The objective of this study was to assess the wear of mobile total knee polyethylene inserts after an in vitro wear test. In particular, the wear behavior of mobile bearing polyethylene knee configurations was investigated ...
1 CitationsSource
#1Saverio AffatatoH-Index: 25
#2Emanuela CastielloH-Index: 2
Last. Domenico TiganiH-Index: 16
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Revision of large-diameter, monoblock acetabular components for both hip resurfacing arthroplasty and metal-on-metal (MoM) total hip arthroplasty (THA) is correlated to a high amount of complications. For this reason, performing a limited revision by conversion to a dual mobility (DM) without acetabular component exchange has been proposed in order to limit these complications. Although DM bearing offers an easy solution avoiding the intraoperative and time-associated complications, concern abou...
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Unicompartmental knee arthroplasty remains a challenge for orthopaedic surgeons because of its higher revision rate compare with the total knee arthroplasty. The hypothesis of this work is that the...
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#1Toshiyuki Tateiwa (TMU: Tokyo Medical University)H-Index: 6
#1Toshiyuki TateiwaH-Index: 4
Last. Kengo YamamotoH-Index: 24
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Zirconia-toughened alumina (ZTA) currently represents the bioceramic gold standard for load-bearing components in artificial hip joints. ZTA is long known for its high flexural strength and fracture toughness, both properties arising from a microscopic crack-tip shielding mechanism due to the stress-induced tetragonal-to-monoclinic (t→m) polymorphic transformation of zirconia. However, there have been concerns over the years regarding the long-term structural performance of ZTA since the t→m tra...
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#1Saverio AffatatoH-Index: 25
#2Alessandro Ruggiero (UNISA: University of Salerno)H-Index: 15
Abstract Background As revision surgeries of total hip arthroplasty are going to increase, success or failure of revised implants is a fundamental aspect in the orthopaedic field. Today, slight is known about the success rate of revised total hip arthroplasty when the femoral head is substituted on a retained stem. Question We wanted to investigate if the interposition of a stem taper adapter between the paired elements can influence this rate of success. Methods From a total of more than 1000 r...
1 CitationsSource
Background and purpose — Little is known about the role of retained trunnions in revision hip arthroplasties, i.e., when only the femoral head is substituted. Wear (fretting corrosion) and ceramic ...
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#1Alessandro RuggieroH-Index: 15
#2Roberto D’AmatoH-Index: 8
Last. Saverio AffatatoH-Index: 25
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In biomechanics and orthopedics, finite element modelling allows simulating complex problems, and in the last few years, it has been widely used in many applications, also in the field of biomechanics and biotribology. As is known, one crucial point of FEM (finite element model) is the discretization of the physical domain, and this procedure is called meshing. A well-designed mesh is necessary in order to achieve accurate results with an acceptable computational effort. The aim of this work is ...
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#1Nikola KorunovićH-Index: 3
#2Dragan MarinkovićH-Index: 6
Last. Saverio AffatatoH-Index: 25
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Structural analysis, based on the finite element method, and structural optimization, can help surgery planning or decrease the probability of fixator failure during bone healing. Structural optimization implies the creation of many finite element model instances, usually built using a computer-aided design (CAD) model of the bone-fixator assembly. The three most important features of such CAD models are: parameterization, robustness and bidirectional associativity with finite elements (FE) mode...
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#2Silvia LogozzoH-Index: 8
Last. Saverio AffatatoH-Index: 25
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Wear of knee joint prostheses represents a significant clinical problem. Wear characterization of knee inserts is the basis to acquire knowledge on the tribological phenomena during biomechanical contacts and to limit failures or malfunctions due to material loss. In this paper, the wear behavior of fixed total knee prostheses (TKPs) was examined by means of in vitro wear tests performed using a knee joint wear simulator and a 3D optical digitizer. The objective was to characterize the 3D wear d...
2 CitationsSource
Abstract Purpose Although total knee arthroplasty is one of the most successful and consolidated surgical procedure, the infection rate is still elevate. To treat infected knee arthroplasties, in the past years was approached a procedure that involved the implantation of an antibiotic-loaded temporary spacer. This spacer helps maintain an appropriate soft tissue envelope and the patients are able to walk during the interim period. This study investigated the tribological behavior of antibiotic-i...
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