Design and manufacture of custom hip prostheses based on standard X-ray films

Ma, Ronghua; Xue, Wendong; Wang, Dongmei; Dai, Kerong; Wang, Chengtao

doi:10.1007/s00170-004-2156-x

Cited by 20 publications

(6 citation statements)

References 12 publications

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“…First, the 3D model of the implants should be constructed and sliced. Then, the computer controls the materials to be deposited on the operating platform to manufacture the bone implants [ 36 ]. Regarding the CNC method, the milling strategy and types of tools must be properly selected to achieve maximum accuracy in the resulting physical implant.…”

Section: Review Of the Manufacturing Of The Bone Joint Replacementmentioning

confidence: 99%

A Critical Review of the Design, Manufacture, and Evaluation of Bone Joint Replacements for Bone Repair

et al. 2021

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With the change of people’s living habits, bone trauma has become a common clinical disease. A large number of bone joint replacements is performed every year around the world. Bone joint replacement is a major approach for restoring the functionalities of human joints caused by bone traumas or some chronic bone diseases. However, the current bone joint replacement products still cannot meet the increasing demands and there is still room to increase the performance of the current products. The structural design of the implant is crucial because the performance of the implant relies heavily on its geometry and microarchitecture. Bionic design learning from the natural structure is widely used. With the progress of technology, machine learning can be used to optimize the structure of bone implants, which may become the focus of research in the future. In addition, the optimization of the microstructure of bone implants also has an important impact on its performance. The widely used design algorithm for the optimization of bone joint replacements is reviewed in the present study. Regarding the manufacturing of the implant, the emerging additive manufacturing technique provides more room for the design of complex microstructures. The additive manufacturing technique has enabled the production of bone joint replacements with more complex internal structures, which makes the design process more convenient. Numerical modeling plays an important role in the evaluation of the performance of an implant. For example, theoretical and numerical analysis can be carried out by establishing a musculoskeletal model to prepare for the practical use of bone implants. Besides, the in vitro and in vivo testing can provide mechanical properties of bone implants that are more in line with the implant recipient’s situation. In the present study, the progress of the design, manufacture, and evaluation of the orthopedic implant, especially the joint replacement, is critically reviewed.

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Section: Review Of the Manufacturing Of The Bone Joint Replacementmentioning

confidence: 99%

A Critical Review of the Design, Manufacture, and Evaluation of Bone Joint Replacements for Bone Repair

et al. 2021

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“…It has been reported that a patient-specific implant is usually fitted well with the shape and size of individual patients' femur [1,2]. Also customizing an implant is the only viable solution especially to patients with significant leg deformity [3,4], and it tends to achieve better stability and to reduce stress concentration [5]. This paper will focus on the process of patient-specific hip implant determination regarding morphologic features of the hip bone.…”

Section: Introductionmentioning

confidence: 99%

Design of patient-specific hip implants based on the 3D geometry of the human femur

Jun

Choi²

2010

Advances in Engineering Software

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“…Particularly in the case of young patients, the custom prosthesis provides a higher success rate (Flecher et al, 2010). Anatomical features of the human skeletomuscular system are usually taken into account in the designs of custom hip prosthesis, which enhances load transfer from the prosthesis to bone (Ruyu et al, 2005). It is vital to match the dimensions of the femoral stem closely with those of the femur canal.…”

Section: Introductionmentioning

confidence: 99%

Additive manufacturing in prosthesis development – a case study

Maji

Banerjee

et al. 2014

Rapid Prototyping Journal

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Purpose – The purpose of this paper was development of patient-specific femoral prosthesis using rapid prototyping (RP), a part of additive manufacturing (AM) technology, and comparison of its merits or demerits over CNC machining route. Design/methodology/approach – The customized femoral prosthesis was developed through computed tomography (CT)-3D CAD-RP-rapid tooling (RT)-investment casting (IC) route using a stereolithography apparatus (SLA-250) RP machine. A similar prosthesis was also developed through conventional CT-CAD-CAM-CNC, using RP models to check the fit before machining. The dimensional accuracy, surface finish, cost and time involvement were compared between these two routes. Findings – In both the routes, RP had an important role in checking the fit. Through the conventional machining route, higher-dimensional accuracies and surface finish were achieved. On the contrary, RP route involved lesser time and cost, with rougher surface finish on the prosthesis surface and less internal shrinkage porosity. The rougher surface finish of the prosthesis is favourable for bone ingrowths after implantation and porosity reduce the effective stiffness of the prosthesis, leading to reduced stress shielding effect after implantation. Research limitations/implications – As there is no AM machine for direct fabrication of metallic component like laser engineered net shaping and electron beam melting in our Institute, the metallic prosthesis was developed through RP-RT-IC route using the SLA-250 machine. Practical implications – The patient-specific prosthesis always provides better fit and favourable stress distribution, leading to longer life of the prosthesis. The described RP route can be followed to develop the customized prosthesis at lower price within the shortest time. Originality/value – The described methodology of customized prosthesis development through the AM route and its advantages are applicable for development of any metallic prostheses.

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Design and manufacture of custom hip prostheses based on standard X-ray films

Cited by 20 publications

References 12 publications

A Critical Review of the Design, Manufacture, and Evaluation of Bone Joint Replacements for Bone Repair

A Critical Review of the Design, Manufacture, and Evaluation of Bone Joint Replacements for Bone Repair

Design of patient-specific hip implants based on the 3D geometry of the human femur

Additive manufacturing in prosthesis development – a case study

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