Rasche Prototypen-Technik in der präoperativen Planung der totalen Hüft-Arthroplastie mit speziell angefertigten femoralen Komponenten

Faur, Cosmin Ioan; Crainic, N.; Sticlaru, Carmen; Oancea, Cristian

doi:10.1007/s00508-013-0335-1

Cited by 22 publications

(16 citation statements)

References 16 publications

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“…AM-related structure design optimization methods can be classified by different objectives, such as optimization for stiffness and strength [65][66][67][68], compliance [69,70], and manufacturability [33]. In addition, structural optimization methods have spread to other disciplines such as dynamic [71,72], thermal [73][74][75] and biomedical field [76][77][78]. In terms of optimization methods, they can be classified into two groups based on whether the interior (a) (b) Fig.…”

Section: Design For Additive Manufacturingmentioning

confidence: 99%

Additive manufacturing-enabled design theory and methodology: a critical review

Yang

Zhao

2015

Int J Adv Manuf Technol

261

139

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As additive manufacturing (AM) process evolves from rapid prototyping to the end-of-use product manufacturing process, manufacturing constraints have largely been alleviated and design freedom has been significantly broadened, including shape complexity, material complexity, hierarchical complexity, and functional complexity. Inevitably, conventional Design Theory and Methodology (DTM) especially life-cycle objectives oriented ones are challenged. In this paper, firstly, the impact of AM on conventional DTM is analyzed in terms of design for manufacturing (DFM), design for assembly (DFA), and design for performance (DFP). Abundance of evidences indicate that conventional DTM is not qualified to embrace these new opportunities and consequently underline the need for a set of design principles for AM to achieve a better design. Secondly, design methods related with AM are reviewed and classified into three main groups, including design guidelines, modified DTM for AM, and design for additive manufacturing (DFAM). The principles and representative design methods in each category are studied comprehensively with respect to benefits and drawbacks. A new design method partially overcoming these drawbacks by integrating function integration and structure optimization to realize less part count and better performance is discussed. Design tools as a necessary part for supporting design are also studied. In the meantime, the review also identified the possible areas for future research.

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Section: Design For Additive Manufacturingmentioning

confidence: 99%

Additive manufacturing-enabled design theory and methodology: a critical review

Yang

Zhao

2015

Int J Adv Manuf Technol

261

139

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“…Multi-object and multi-material hybrid models may facilitate planning surgical procedures and allow patients to better understand the nature of the condition and the adopted course of treatment [6,7,8]. Based on CT and MRI data of real anatomical structures, it is possible to manufacture physical models which reconstruct complex inner structures very precisely [2,20,27].…”

Section: Discussionmentioning

confidence: 99%

“…3D models of the test object (or multiple test objects) can be generated from a set of raster data (DICOM data). Vir- T. Kudasik and S. Miechowicz The most common applications of RP models are: preoperative planning for surgery [6,7,8] and the preparation of surgical guides, templates, soft appliances [9,10]. The more complicated models are used for custom prosthetics, implant designing [11,12,13] and scaffolds generation [14,15].…”

Section: Introductionmentioning

confidence: 99%

Methods of reconstructing complex multi-structural anatomical objects with RP techniques

Kudasik

Miechowicz

2016

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. This article presents reconstruction methods applied to a (geometrically and physically) complex structural object with the use of RP and RT techniques. The methods are innovative due to their hybrid -multi-model and multi-material -approach to reconstruction, as well as the application of multiple technologies. An experimental analysis was conducted to verify the feasibility of rapid prototyping (RP) techniques in the reconstruction of complex internal structures using materials of diverse properties. Some RP techniques offer the possibility of discriminating between diverse objects through the use of different colours. Such models are well-suited for diagnostic purposes, for better visualisation of complex clinical problems, pathological alterations, etc. Nevertheless, they fail to fully reflect physical and mechanical properties of objects, which renders them useful in experimental analysis only to a limited extent. Their basic drawback is that they merely reflect geometrical features of the examined object. The methods discussed in the present article enable modelling multi-object structures in a single process based on the PolyJet Matrix technology and materials of different physical properties by means of a hybrid method. The article also describes the process of modelling complex anatomical structures of soft tissues and bones using models of the maxilla and the mandible as examples. The study is based on data acquired through standard computed tomography (CT). In addition, the article addresses selected aspects of CT acquisition, generation of numerical models composed of several anatomical structures (objects) and fabricating physical multi-object models.Key words: medical modelling, rapid prototyping, computed tomography (CT), experimental tests. tual models (3D numerical models) can be developed with the use of CT or MRI data. They can be useful in designing and fabricating physical models of real tissues by means of rapid prototyping techniques [3,4]. 3D models generated by the authors of the present study are shown in Fig. 2; they are based on anatomical structures presented in Fig.1. RP methods enable us to create physical models for medical purposes [5] such as: Methods of reconstructing complex multi-structural anatomical objects with RP techniques• maxillofacial and dental surgeries, • orthopaedic and spinal surgeries, • oncology and reconstruction surgeries, • customised joint replacement prosthesis, • patient-specific instrumentation (orthoses), • implant design, testing and validation.

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“…In these cases, the differences in the biomechanical behavior of custom implants compared to the standard components should be considered. The use of prototypes is helpful in the validation process of the optimal model of custom implant and in the preoperative planning of surgical interventions due to the possibility of simulation of the insertion of femoral component into the medullar canal [4].…”

Section: Introductionmentioning

confidence: 99%

Methods for designing and fabrication large-size medical models for orthopaedics

Kudasik¹,

Libura²,

Markowska³

et al. 2015

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. Computed tomography and rapid prototyping techniques can be used to construct and fabricate large size bone models for orthopaedics. Rapid Prototyping technology enables the fabrication of a true-to-scale bone joint model based on 3D virtual models, generated by segmenting patients' CT images. The model can be used to plan, to simulate, to assist prosthesis implantation for difficult cases of THR (Total Hip Replacements). The main restriction of implementing such models into medical practice is high cost of their production. Physical models of pelvic bones, were constructed on the basis of data collected during standard CT examinations. A method of development of a large-size model while fulfilling the requirement for reducing the price of model fabrication in the article was presented. The method can be used for fabrication the models with 3DP technique. This paper also discusses the issue of production costs when utilizing other RP techniques as well as their usefulness in practice.

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Rasche Prototypen-Technik in der präoperativen Planung der totalen Hüft-Arthroplastie mit speziell angefertigten femoralen Komponenten

Cited by 22 publications

References 16 publications

Additive manufacturing-enabled design theory and methodology: a critical review

Additive manufacturing-enabled design theory and methodology: a critical review

Methods of reconstructing complex multi-structural anatomical objects with RP techniques

Methods for designing and fabrication large-size medical models for orthopaedics

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