A finite element analysis of the vibrational behaviour of the intra-operatively manufactured prosthesis–femur system

Pastrav, Leonard; Devos, Johannes; Perre, Georges Van der; Jaecques, Siegfried

doi:10.1016/j.medengphy.2008.11.017

Cited by 29 publications

(16 citation statements)

References 18 publications

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“…The differences appear in form of distorted harmonic signals and displacements of the resonance frequencies. These results were confirmed numerically with the finite element method [10][11][12] as well as in clinical studies [4,6,13,14]. Hereby, the analysis of the resonances of the bone-implant-system is most promising.…”

Section: Introductionmentioning

confidence: 59%

Loosening detection of the femoral component of hip prostheses with extracorporeal shockwaves: A pilot study

Rieger

Jaeger

Kretzer

et al. 2015

Medical Engineering & Physics

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Section: Introductionmentioning

confidence: 59%

Loosening detection of the femoral component of hip prostheses with extracorporeal shockwaves: A pilot study

Rieger

Jaeger

Kretzer

et al. 2015

Medical Engineering & Physics

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“…The bone was modeled as an orthotropic, linearelastic material, in which the cortical and cancellous bone properties were assigned to the outer and inner layers of elements, respectively. This approach was similar to that of Pastrav et al [23].…”

Section: Construction Of a Subject-specific Finite Element Modelmentioning

confidence: 73%

“…Instead of heterogeneous properties, simplified material properties similar to bone were assigned as described by Pastrav et al [23] for ease of finite element modeling.…”

Section: Discussionmentioning

confidence: 99%

Subject specific finite element modeling of periprosthetic femoral fracture using element deactivation to simulate bone failure

Miles

Kolos

Walter³

et al. 2015

Medical Engineering & Physics

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“…It should be noted here that change of the interfacial contact area between the prosthesis and the bone has been addressed in previous studies [46] as another potential mechanism to describe the frequency shifts during the insertion. They suggested that increase of contact area during the insertion results in positive frequency shifts due to increase of structural integrity and apparent stiffness.…”

Section: Discussionmentioning

confidence: 94%

A Vibrational Technique for In Vitro Intraoperative Prosthesis Fixation Monitoring

Yousefsani

Dejnabadi

Guyen³

et al. 2020

IEEE Trans. Biomed. Eng.

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In this paper, a new vibrational modal analysis technique was developed for intraoperative cementless prosthesis fixation evaluation upon hammering. Methods: An artificial bone (Sawbones)-prosthesis system was excited by sweeping of a sine signal over a wide frequency range. The exponential sine sweep technique was implemented to the response signal in order to determine the linear impulse response. Recursive Fourier transform enhancement (RFTE) technique was applied to the linear impulse response signal in order to enhance the frequency spectrum with sharp and distinguishable peak values indicating distinct high natural frequencies of the system (ranging from 15 kHz to 90 kHz). The experiment was repeated with 5 Sawbones-prosthesis samples. Upon successive hammering during the prosthesis insertion, variation of each natural frequency was traced. Results: Compared to classical Fast Fourier Transform, RFTE provided a better tracing and enhancement of frequency components during insertion. Three different types of frequency evolving trends (monotonically increasing, insensitive, and plateau-like) were observed for all samples, as confirmed by a new finite element simulation of the prosthesis dynamic insertion. Two main mechanical phenomena (i.e., geometrical compaction and compressive stress) were shown to govern these trends in opposite ways. Followup of the plateau-like trend upon hammering showed that the frequency shift is a good indicator of fixation. Conclusion: Alongside the individual follow-up of frequency shifts, combinatorial frequency analysis provides new objective information on the mechanical stability of Sawboneprosthesis fixation. Significance: The proposed vibrational technique based on RTFE can provide the surgeon with a new assistive diagnostic technique during the surgery by indicating when the bone-prosthesis fixation is acceptable, and beyond of which further hammering should be done cautiously to avoid bone fracture.

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A finite element analysis of the vibrational behaviour of the intra-operatively manufactured prosthesis–femur system

Cited by 29 publications

References 18 publications

Loosening detection of the femoral component of hip prostheses with extracorporeal shockwaves: A pilot study

Loosening detection of the femoral component of hip prostheses with extracorporeal shockwaves: A pilot study

Subject specific finite element modeling of periprosthetic femoral fracture using element deactivation to simulate bone failure

A Vibrational Technique for In Vitro Intraoperative Prosthesis Fixation Monitoring

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