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Lu S, Vien BS, Russ M, Fitzgerald M, Chiu WK. Monitoring Osseointegration Process Using Vibration Analysis. SENSORS (BASEL, SWITZERLAND) 2022; 22:6727. [PMID: 36146079 PMCID: PMC9504783 DOI: 10.3390/s22186727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/30/2022] [Accepted: 09/02/2022] [Indexed: 06/16/2023]
Abstract
Osseointegration implant has attracted significant attention as an alternative treatment for transfemoral amputees. It has been shown to improve patients' sitting and walking comfort and control of the artificial limb, compared to the conventional socket device. However, the patients treated with osseointegration implants require a long rehabilitation period to establish sufficient femur-implant connection, allowing the full body weight on the prosthesis stem. Hence, a robust assessment method on the osseointegration process is essential to shorten the rehabilitation period and identify the degree of osseointegration prior to the connection of an artificial limb. This paper investigates the capability of a vibration-related index (E-index) on detecting the degree of simulated osseointegration process with three lengths of the residual femur (152, 190 and 228 mm). The adhesive epoxy with a setting time of 5 min was applied at the femur-implant interface to represent the stiffness change during the osseointegration process. The cross-spectrum and colormap of the normalised magnitude demonstrated significant changes during the cure time, showing that application of these plots could improve the accuracy of the currently available diagnostic techniques. Furthermore, the E-index exhibited a clear trend with a noticeable average increase of 53% against the cure time for all three residual length conditions. These findings highlight that the E-index can be employed as a quantitative justification to assess the degree of osseointegration process without selecting and tracing the resonant frequency based on the geometry of the residual femur.
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Affiliation(s)
- Shouxun Lu
- Department of Mechanical & Aerospace Engineering, Monash University, Wellington Rd., Clayton, VIC 3800, Australia
| | - Benjamin Steven Vien
- Department of Mechanical & Aerospace Engineering, Monash University, Wellington Rd., Clayton, VIC 3800, Australia
| | - Matthias Russ
- The Alfred Hospital, 55 Commercial Road, Melbourne, VIC 3004, Australia
- National Trauma Research Institute, 89 Commercial Road, Melbourne, VIC 3004, Australia
| | - Mark Fitzgerald
- The Alfred Hospital, 55 Commercial Road, Melbourne, VIC 3004, Australia
- National Trauma Research Institute, 89 Commercial Road, Melbourne, VIC 3004, Australia
| | - Wing Kong Chiu
- Department of Mechanical & Aerospace Engineering, Monash University, Wellington Rd., Clayton, VIC 3800, Australia
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2
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Multiscale Sensing of Bone-Implant Loosening for Multifunctional Smart Bone Implants: Using Capacitive Technologies for Precision Controllability. SENSORS 2022; 22:s22072531. [PMID: 35408143 PMCID: PMC9003018 DOI: 10.3390/s22072531] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 03/16/2022] [Accepted: 03/23/2022] [Indexed: 02/06/2023]
Abstract
The world population growth and average life expectancy rise have increased the number of people suffering from non-communicable diseases, namely osteoarthritis, a disorder that causes a significant increase in the years lived with disability. Many people who suffer from osteoarthritis undergo replacement surgery. Despite the relatively high success rate, around 10% of patients require revision surgeries, mostly because existing implant technologies lack sensing devices capable of monitoring the bone–implant interface. Among the several monitoring methodologies already proposed as substitutes for traditional imaging methods, cosurface capacitive sensing systems hold the potential to monitor the bone–implant fixation states, a mandatory capability for long-term implant survival. A multifaceted study is offered here, which covers research on the following points: (1) the ability of a cosurface capacitor network to effectively monitor bone loosening in extended peri-implant regions and according to different stimulation frequencies; (2) the ability of these capacitive architectures to provide effective sensing in interfaces with hydroxyapatite-based layers; (3) the ability to control the operation of cosurface capacitive networks using extracorporeal informatic systems. In vitro tests were performed using a web-based network sensor composed of striped and interdigitated capacitive sensors. Hydroxyapatite-based layers have a minor effect on determining the fixation states; the effective operation of a sensor network-based solution communicating through a web server hosted on Raspberry Pi was shown. Previous studies highlight the inability of current bone–implant fixation monitoring methods to significantly reduce the number of revision surgeries, as well as promising results of capacitive sensing systems to monitor micro-scale and macro-scale bone–interface states. In this study, we found that extracorporeal informatic systems enable continuous patient monitoring using cosurface capacitive networks with or without hydroxyapatite-based layers. Findings presented here represent significant advancements toward the design of future multifunctional smart implants.
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Lu S, Vien BS, Russ M, Fitzgerald M, Chiu WK. Experimental Investigation of Vibration Analysis on Implant Stability for a Novel Implant Design. SENSORS 2022; 22:s22041685. [PMID: 35214590 PMCID: PMC8874639 DOI: 10.3390/s22041685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 01/04/2023]
Abstract
Osseointegrated prostheses are widely used following transfemoral amputation. However, this technique requires sufficient implant stability before and during the rehabilitation period to mitigate the risk of implant breakage and loosening. Hence, reliable assessment methods for the osseointegration process are essential to ensure initial and long–term implant stability. This paper researches the feasibility of a vibration analysis technique for the osseointegration (OI) process by investigating the change in the dynamic response of the residual femur with a novel implant design during a simulated OI process. The paper also proposes a concept of an energy index (the E–index), which is formulated based on the normalized magnitude. To illustrate the potential of the E–index, this paper reports on changes in the vibrational behaviors of a 133 mm long amputated artificial femur model and implant system, with epoxy adhesives applied at the interface to simulate the OI process. The results show a significant variation in the magnitude of the colormap against curing time. The study also shows that the E–index was sensitive to the interface stiffness change, especially during the early curing process. These findings highlight the feasibility of using the vibration analysis technique and the E–index to quantitatively monitor the osseointegration process for future improvement on the efficiency of human health monitoring and patient rehabilitation.
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Affiliation(s)
- Shouxun Lu
- Department of Mechanical & Aerospace Engineering, Monash University, Melbourne, VIC 3800, Australia; (B.S.V.); (W.K.C.)
- Correspondence:
| | - Benjamin Steven Vien
- Department of Mechanical & Aerospace Engineering, Monash University, Melbourne, VIC 3800, Australia; (B.S.V.); (W.K.C.)
| | - Matthias Russ
- The Alfred Hospital, Melbourne, VIC 3004, Australia; (M.R.); (M.F.)
- National Trauma Research Institute, Melbourne, VIC 3004, Australia
| | - Mark Fitzgerald
- The Alfred Hospital, Melbourne, VIC 3004, Australia; (M.R.); (M.F.)
- National Trauma Research Institute, Melbourne, VIC 3004, Australia
| | - Wing Kong Chiu
- Department of Mechanical & Aerospace Engineering, Monash University, Melbourne, VIC 3800, Australia; (B.S.V.); (W.K.C.)
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Modal Analysis of the Ancillary During Femoral Stem Insertion: A Study on Bone Mimicking Phantoms. Ann Biomed Eng 2022; 50:16-28. [PMID: 34993695 DOI: 10.1007/s10439-021-02887-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 11/03/2021] [Indexed: 11/01/2022]
Abstract
The femoral stem primary stability achieved by the impaction of an ancillary during its insertion is an important factor of success in cementless surgery. However, surgeons still rely on their proprioception, making the process highly subjective. The use of Experimental Modal Analysis (EMA) without sensor nor probe fixation on the implant or on the bone is a promising non destructive approach to determine the femoral stem stability. The aim of this study is to investigate whether EMA performed directly on the ancillary could be used to monitor the femoral stem insertion into the bone. To do so, a cementless femoral stem was inserted into 10 bone phantoms of human femurs and EMA was carried out on the ancillary using a dedicated impact hammer for each insertion step. Two bending modes could be identified in the frequency range [400-8000] Hz for which the resonance frequency was shown to be sensitive to the insertion step and to the bone-implant interface properties. A significant correlation was obtained between the two modal frequencies and the implant insertion depth (R2 = 0.95 ± 0.04 and R2 = 0.94 ± 0.06). This study opens new paths towards the development of noninvasive vibration based evaluation methods to monitor cementless implant insertion.
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Veira Canle D, Mäkinen J, Blomqvist R, Gritsevich M, Salmi A, Hæggström E. Defect localization by an extended laser source on a hemisphere. Sci Rep 2021; 11:15191. [PMID: 34312423 PMCID: PMC8313693 DOI: 10.1038/s41598-021-94084-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/05/2021] [Indexed: 11/16/2022] Open
Abstract
The primary goal of this study is to localize a defect (cavity) in a curved geometry. Curved topologies exhibit multiple resonances and the presence of hotspots for acoustic waves. Launching acoustic waves along a specific direction e.g. by means of an extended laser source reduces the complexity of the scattering problem. We performed experiments to demonstrate the use of a laser line source and verified the experimental results in FEM simulations. In both cases, we could locate and determine the size of a pit in a steel hemisphere which allowed us to visualize the defect on a 3D model of the sample. Such an approach could benefit patients by enabling contactless inspection of acetabular cups.
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Affiliation(s)
- Daniel Veira Canle
- Department of Physics, Division of Material Physics, Faculty of Science, University of Helsinki, P.O.B. 64, 00014, Helsinki, Finland.
| | - Joni Mäkinen
- Department of Physics, Division of Material Physics, Faculty of Science, University of Helsinki, P.O.B. 64, 00014, Helsinki, Finland
| | - Richard Blomqvist
- Department of Physics, Division of Material Physics, Faculty of Science, University of Helsinki, P.O.B. 64, 00014, Helsinki, Finland
| | - Maria Gritsevich
- Department of Physics, Division of Material Physics, Faculty of Science, University of Helsinki, P.O.B. 64, 00014, Helsinki, Finland.,Finnish Geospatial Research Institute, Geodeetinrinne 2, 02430, Masala, Finland.,Institute of Physics and Technology, Ural Federal University, Mira Str. 19, 620002, Ekaterinburg, Russia
| | - Ari Salmi
- Department of Physics, Division of Material Physics, Faculty of Science, University of Helsinki, P.O.B. 64, 00014, Helsinki, Finland
| | - Edward Hæggström
- Department of Physics, Division of Material Physics, Faculty of Science, University of Helsinki, P.O.B. 64, 00014, Helsinki, Finland
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Goossens Q, Pastrav L, Roosen J, Mulier M, Desmet W, Vander Sloten J, Denis K. Acoustic analysis to monitor implant seating and early detect fractures in cementless THA: An in vivo study. J Orthop Res 2021; 39:1164-1173. [PMID: 32844506 DOI: 10.1002/jor.24837] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/01/2020] [Accepted: 08/18/2020] [Indexed: 02/04/2023]
Abstract
The initial stability of cementless total hip arthroplasty (THA) implants is obtained by an interference fit that allows osseointegration for a long term secondary stability of the implant. Yet, finding the insertion endpoint that corresponds to an appropriate initial stability is currently often based on a number of subjective experiences of the orthopedic surgeon, which can be challenging. In order to assist the orthopedic surgeons in their pursuit to find this optimal initial stability, this study aims to determine whether the analysis of sound that results from the implant insertion hammer blows can be used to objectively monitor the insertion process of cementless THA implants. An in vivo study was conducted. The experimental results revealed vibro-acoustic behavior sensitive to implant seating, related to the low frequency content of the response spectra. This sensitive low-frequency behavior was quantified by a set of specific vibro-acoustic features and metrics that reflected the power and similarity of the low-frequency response. These features and metrics allowed monitoring the implant seating and their convergence agreed well with the endpoint of insertion as determined by the orthopedic surgeon. Intraoperative fractures caused an abrupt and opposite change of the vibro-acoustic behavior prior to the notification of the fracture by the orthopedic surgeon. The observation of such an abrupt change in the vibro-acoustic behavior can be an important early warning for loss of implant stability. The presented vibro-acoustic measurement method shows potential to serve as a decision supporting source of information as it showed to reflect the implant seating.
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Affiliation(s)
- Quentin Goossens
- Biomechanics Section, Department of Mechanical Engineering, KU Leuven, Leuven, Belgium
| | - Leonard Pastrav
- Biomechanics Section, Department of Mechanical Engineering, KU Leuven, Leuven, Belgium
| | - Jorg Roosen
- Division of Orthopedics, University Hospital Leuven, Leuven, Belgium
| | - Michiel Mulier
- Division of Orthopedics, University Hospital Leuven, Leuven, Belgium
| | - Wim Desmet
- MSD Section, Department of Mechanical Engineering, KU Leuven, Leuven, Belgium
| | - Jos Vander Sloten
- Biomechanics Section, Department of Mechanical Engineering, KU Leuven, Leuven, Belgium
| | - Kathleen Denis
- Biomechanics Section, Department of Mechanical Engineering, KU Leuven, Leuven, Belgium
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Spectral Decomposition of the Flow and Characterization of the Sound Signals through Stenoses with Different Levels of Severity. Bioengineering (Basel) 2021; 8:bioengineering8030041. [PMID: 33808744 PMCID: PMC8003520 DOI: 10.3390/bioengineering8030041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/15/2021] [Accepted: 03/15/2021] [Indexed: 11/17/2022] Open
Abstract
Treatments of atherosclerosis depend on the severity of the disease at the diagnosis time. Non-invasive diagnosis techniques, capable of detecting stenosis at early stages, are essential to reduce associated costs and mortality rates. We used computational fluid dynamics and acoustics analysis to extensively investigate the sound sources arising from high-turbulent fluctuating flow through stenosis. The frequency spectral analysis and proper orthogonal decomposition unveiled the frequency contents of the fluctuations for different severities and decomposed the flow into several frequency bandwidths. Results showed that high-intensity turbulent pressure fluctuations appeared inside the stenosis for severities above 70%, concentrated at plaque surface, and immediately in the post-stenotic region. Analysis of these fluctuations with the progression of the stenosis indicated that (a) there was a distinct break frequency for each severity level, ranging from 40 to 230 Hz, (b) acoustic spatial-frequency maps demonstrated the variation of the frequency content with respect to the distance from the stenosis, and (c) high-energy, high-frequency fluctuations existed inside the stenosis only for severe cases. This information can be essential for predicting the severity level of progressive stenosis, comprehending the nature of the sound sources, and determining the location of the stenosis with respect to the point of measurements.
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Yousefsani SA, Dejnabadi H, Guyen O, Aminian K. A Vibrational Technique for In Vitro Intraoperative Prosthesis Fixation Monitoring. IEEE Trans Biomed Eng 2020; 67:2953-2964. [PMID: 32091985 DOI: 10.1109/tbme.2020.2974380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE 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. Follow-up 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 Sawbone-prosthesis 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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Cachão JH, Soares dos Santos MP, Bernardo R, Ramos A, Bader R, Ferreira JAF, Torres Marques A, Simões JAO. Altering the Course of Technologies to Monitor Loosening States of Endoprosthetic Implants. SENSORS 2019; 20:s20010104. [PMID: 31878028 PMCID: PMC6982938 DOI: 10.3390/s20010104] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/07/2019] [Accepted: 11/10/2019] [Indexed: 02/02/2023]
Abstract
Musculoskeletal disorders are becoming an ever-growing societal burden and, as a result, millions of bone replacements surgeries are performed per year worldwide. Despite total joint replacements being recognized among the most successful surgeries of the last century, implant failure rates exceeding 10% are still reported. These numbers highlight the necessity of technologies to provide an accurate monitoring of the bone–implant interface state. This study provides a detailed review of the most relevant methodologies and technologies already proposed to monitor the loosening states of endoprosthetic implants, as well as their performance and experimental validation. A total of forty-two papers describing both intracorporeal and extracorporeal technologies for cemented or cementless fixation were thoroughly analyzed. Thirty-eight technologies were identified, which are categorized into five methodologies: vibrometric, acoustic, bioelectric impedance, magnetic induction, and strain. Research efforts were mainly focused on vibrometric and acoustic technologies. Differently, approaches based on bioelectric impedance, magnetic induction and strain have been less explored. Although most technologies are noninvasive and are able to monitor different loosening stages of endoprosthetic implants, they are not able to provide effective monitoring during daily living of patients.
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Affiliation(s)
- João Henrique Cachão
- Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Marco P. Soares dos Santos
- Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
- Center for Mechanical Technology & Automation (TEMA), University of Aveiro, 3810-193 Aveiro, Portugal
- Associated Laboratory for Energy, Transports and Aeronautics (LAETA), 4150-179 Porto, Portugal
- Correspondence:
| | - Rodrigo Bernardo
- Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - António Ramos
- Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
- Center for Mechanical Technology & Automation (TEMA), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rainer Bader
- Department of Orthopedics, University Medicine Rostock, 18057 Rostock, Germany
| | - Jorge A. F. Ferreira
- Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
- Center for Mechanical Technology & Automation (TEMA), University of Aveiro, 3810-193 Aveiro, Portugal
| | - António Torres Marques
- Associated Laboratory for Energy, Transports and Aeronautics (LAETA), 4150-179 Porto, Portugal
- Mechanical Engineering Department, University of Porto, 4200-465 Porto, Portugal
| | - José A. O. Simões
- Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
- Center for Mechanical Technology & Automation (TEMA), University of Aveiro, 3810-193 Aveiro, Portugal
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Mohammadbagherpoor H, Ierymenko P, Craver MH, Carlson J, Dausch D, Grant E, D Lucey J. An Implantable Wireless Inductive Sensor System Designed to Monitor Prosthesis Motion in Total Joint Replacement Surgery. IEEE Trans Biomed Eng 2019; 67:1718-1726. [PMID: 31562070 DOI: 10.1109/tbme.2019.2943808] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Currently, the most common method for detecting prosthetic implant loosening is imaging. Unfortunately, imaging methods are imprecise in detecting the early signs of implant loosening. This paper describes a new wireless inductive proximity sensor system for detecting early implant loosening. The loosening of the implant is accurately detected by analyzing the electromagnetic field generated by the passive sensors located around the implant. The sensor system was modeled and simulated using COMSOL, and then tested experimentally. The inductive proximity sensor and the metallic implant form a coupled circuit is tuned to oscillate at a designed frequency. The circuit's integrated controller measures and records specific sensor's parameters such as resistance and inductance of the sensor that are directly related to the distance between the sensor system and the implant. A prototype has been developed and the results show that the designed proximity sensor is capable of measuring the loosening of the hip implant at [Formula: see text]m resolution at distances of less than [Formula: see text], and of [Formula: see text]m resolution at a distance of [Formula: see text]. Furthermore, there is a good correlation between the simulated and experimental results.
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Salman HE, Yazicioglu Y. Computational analysis for non-invasive detection of stenosis in peripheral arteries. Med Eng Phys 2019; 70:39-50. [PMID: 31230999 DOI: 10.1016/j.medengphy.2019.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 05/24/2019] [Accepted: 06/10/2019] [Indexed: 01/28/2023]
Abstract
Atherosclerosis usually affects the entire cardiovascular system, including peripheral blood vessels. Peripheral arterial stenosis may indicate possible serious vascular disorders related to more vital organs. If peripheral arterial stenosis can be discerned at an early stage, it can serve as a warning sign to take precautions, such as using more invasive diagnostic techniques or adopting a healthier life style. In this study, peripheral regions, such as the thigh, upper arm, and neck are modelled considering stenosis of their major arteries. Stenosis generates a fluctuating pressure field on the arterial wall, which leads to vibration on the skin's surface. This stenosis-induced pressure field is modelled as a harmonic load and applied to the inner surface of the arterial structure. The vibration response on bare skin is computationally determined using the superposition of modal responses. Realistic geometries and hyperelastic material properties are used in modelling the layers of skin, fat, muscle, and bones. The results indicate that stenosis severities higher than 70% lead to a considerable increase in vibration-response amplitudes, especially at frequencies greater than 250 Hz. The detailed analysis of skin responses provides useful information to detect the stenosis location, where the sum of the vibration amplitudes attains its maximum value around the stenosis.
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Affiliation(s)
- Huseyin Enes Salman
- Qatar University, Biomedical Research Center, New Research Complex-Zone 5, P.O. Box 2713, Doha, Qatar; Department of Mechanical Engineering, Middle East Technical University, Dumlupinar Street No:1, 06800 Ankara, Turkey.
| | - Yigit Yazicioglu
- Department of Mechanical Engineering, Middle East Technical University, Dumlupinar Street No:1, 06800 Ankara, Turkey.
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Impact Force, Polar Gap and Modal Parameters Predict Acetabular Cup Fixation: A Study on a Composite Bone. Ann Biomed Eng 2018; 46:590-604. [DOI: 10.1007/s10439-018-1980-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 01/06/2018] [Indexed: 10/18/2022]
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13
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Tijou A, Rosi G, Hernigou P, Flouzat-Lachaniette CH, Haïat G. Ex Vivo Evaluation of Cementless Acetabular Cup Stability Using Impact Analyses with a Hammer Instrumented with Strain Sensors. SENSORS 2017; 18:s18010062. [PMID: 29280982 PMCID: PMC5796378 DOI: 10.3390/s18010062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/14/2017] [Accepted: 12/23/2017] [Indexed: 11/16/2022]
Abstract
The acetabular cup (AC) implant stability is determinant for the success of cementless hip arthroplasty. A method based on the analysis of the impact force applied during the press-fit insertion of the AC implant using a hammer instrumented with a force sensor was developed to assess the AC implant stability. The aim of the present study was to investigate the performance of a method using a hammer equipped with strain sensors to retrieve the AC implant stability. Different AC implants were inserted in five bovine samples with different stability conditions leading to 57 configurations. The AC implant was impacted 16 times by the two hammers consecutively. For each impact; an indicator IS (respectively IF) determined by analyzing the time variation of the signal corresponding to the averaged strain (respectively force) obtained with the stress (respectively strain) hammer was calculated. The pull-out force F was measured for each configuration. F was significantly correlated with IS (R² = 0.79) and IF (R² = 0.80). The present method has the advantage of not modifying the shape of the hammer that can be sterilized easily. This study opens new paths towards the development of a decision support system to assess the AC implant stability.
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Affiliation(s)
- Antoine Tijou
- Laboratoire de Modélisation et de Simulation Multi-Echelle, CNRS, UMR CNRS 8208, 61 Avenue du Général de Gaulle, 94010 Créteil, France;
| | - Giuseppe Rosi
- Laboratoire de Modélisation et de Simulation Multi-Echelle, UMR CNRS 8208, Université Paris-Est, 61 Avenue du Général de Gaulle, 94010 Créteil, France;
| | - Philippe Hernigou
- Service de Chirurgie Orthopédique et Traumatologique, Hôpital Henri Mondor AP-HP, CHU Paris 12, Université Paris-Est, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France; (P.H.); (C.-H.F.-L.)
- Équipe 10, Groupe 5, IMRB U955, INSERM/UPEC, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France
| | - Charles-Henri Flouzat-Lachaniette
- Service de Chirurgie Orthopédique et Traumatologique, Hôpital Henri Mondor AP-HP, CHU Paris 12, Université Paris-Est, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France; (P.H.); (C.-H.F.-L.)
- Équipe 10, Groupe 5, IMRB U955, INSERM/UPEC, 51 Avenue du Maréchal de Lattre de Tassigny, 94010 Créteil, France
| | - Guillaume Haïat
- Laboratoire de Modélisation et de Simulation Multi-Echelle, CNRS, UMR CNRS 8208, 61 Avenue du Général de Gaulle, 94010 Créteil, France;
- Correspondence: ; Tel.: +33-1-45-17-14-31
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Leuridan S, Goossens Q, Vander Sloten T, De Landsheer K, Delport H, Pastrav L, Denis K, Desmet W, Vander Sloten J. Vibration-based fixation assessment of tibial knee implants: A combined in vitro and in silico feasibility study. Med Eng Phys 2017; 49:109-120. [DOI: 10.1016/j.medengphy.2017.08.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 07/07/2017] [Accepted: 08/13/2017] [Indexed: 10/18/2022]
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15
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Salman HE, Yazicioglu Y. Flow-induced vibration analysis of constricted artery models with surrounding soft tissue. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2017; 142:1913. [PMID: 29092565 DOI: 10.1121/1.5005622] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Arterial stenosis is a vascular pathology which leads to serious cardiovascular diseases. Blood flow through a constriction generates sound and vibration due to fluctuating turbulent pressures. Generated vibro-acoustic waves propagate through surrounding soft tissues and reach the skin surface and may provide valuable insight for noninvasive diagnostic purposes. Motivated by the aforementioned phenomena, vibration of constricted arteries is investigated employing computational models. The flow-induced pressure field in an artery is modeled as broadband harmonic pressure loading based on previous studies in the literature and applied on the inner artery wall. Harmonic analysis is performed for determining radial velocity responses on the outer surface of the models. Results indicate that stenosis severities higher than 70% lead to significant increase in response amplitudes, especially at high frequencies between 250 and 600 Hz. The findings agree well with experimental and theoretical results in the literature considering bending mode frequencies, amplitude scales, and mainly excited frequency ranges. It is seen that artery vibration is sensitive to the phase behavior of pressure loading but its effect becomes less significant with the presence of surrounding tissue. As the surrounding tissue thickness increases, radial velocity response amplitudes decrease but the effect of changes in tissue elastic modulus is more pronounced.
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Affiliation(s)
- Huseyin Enes Salman
- Department of Mechanical Engineering, Middle East Technical University, Dumlupinar Street Number 1, 06800, Ankara, Turkey
| | - Yigit Yazicioglu
- Department of Mechanical Engineering, Middle East Technical University, Dumlupinar Street Number 1, 06800, Ankara, Turkey
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16
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Goossens Q, Leuridan S, Henyš P, Roosen J, Pastrav L, Mulier M, Desmet W, Denis K, Vander Sloten J. Development of an acoustic measurement protocol to monitor acetabular implant fixation in cementless total hip Arthroplasty: A preliminary study. Med Eng Phys 2017; 49:28-38. [PMID: 28760407 DOI: 10.1016/j.medengphy.2017.07.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 04/24/2017] [Accepted: 07/12/2017] [Indexed: 11/27/2022]
Abstract
In cementless total hip arthroplasty (THA), the initial stability is obtained by press-fitting the implant in the bone to allow osseointegration for a long term secondary stability. However, finding the insertion endpoint that corresponds to a proper initial stability is currently based on the tactile and auditory experiences of the orthopedic surgeon, which can be challenging. This study presents a novel real-time method based on acoustic signals to monitor the acetabular implant fixation in cementless total hip arthroplasty. Twelve acoustic in vitro experiments were performed on three types of bone models; a simple bone block model, an artificial pelvic model and a cadaveric model. A custom made beam was screwed onto the implant which functioned as a sound enhancer and insertor. At each insertion step an acoustic measurement was performed. A significant acoustic resonance frequency shift was observed during the insertion process for the different bone models; 250 Hz (35%, second bending mode) to 180 Hz (13%, fourth bending mode) for the artificial bone block models and 120 Hz (11%, eighth bending mode) for the artificial pelvis model. No significant frequency shift was observed during the cadaveric experiment due to a lack of implant fixation in this model. This novel diagnostic method shows the potential of using acoustic signals to monitor the implant seating during insertion.
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Affiliation(s)
- Quentin Goossens
- KU Leuven, Department of Mechanical Engineering, Smart Instrumentation, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium.
| | - Steven Leuridan
- KU Leuven, Department of Mechanical Engineering, Biomechanics Section, Celestijnenlaan 300C, 3001 Leuven, Belgium
| | - Petr Henyš
- Technical University of Liberec, Studentská 1402/2,461 17 Liberec, Czech Republic
| | - Jorg Roosen
- KU Leuven, UZ Pellenberg, Department of Orthopaedics, Weligerveld 1, 3212 Pellenberg, Belgium
| | - Leonard Pastrav
- KU Leuven, Department of Mechanical Engineering, Smart Instrumentation, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium
| | - Michiel Mulier
- KU Leuven, UZ Pellenberg, Department of Orthopaedics, Weligerveld 1, 3212 Pellenberg, Belgium
| | - Wim Desmet
- KU Leuven, Department of Mechanical Engineering, Production Engineering, Machine Design and Automation Division, Celestijnenlaan 300C, 3001 Leuven, Belgium
| | - Kathleen Denis
- KU Leuven, Department of Mechanical Engineering, Smart Instrumentation, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium
| | - Jos Vander Sloten
- KU Leuven, Department of Mechanical Engineering, Biomechanics Section, Celestijnenlaan 300C, 3001 Leuven, Belgium
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17
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Alshuhri AA, Holsgrove TP, Miles AW, Cunningham JL. Non-invasive vibrometry-based diagnostic detection of acetabular cup loosening in total hip replacement (THR). Med Eng Phys 2017; 48:188-195. [PMID: 28709931 DOI: 10.1016/j.medengphy.2017.06.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 06/19/2017] [Accepted: 06/21/2017] [Indexed: 10/19/2022]
Abstract
Total hip replacement is aimed at relieving pain and restoring function. Currently, imaging techniques are primarily used as a clinical diagnosis and follow-up method. However, these are unreliable for detecting early loosening, and this has led to the proposal of novel techniques such as vibrometry. The present study had two aims, namely, the validation of the outcomes of a previous work related to loosening detection, and the provision of a more realistic anatomical representation of the clinical scenario. The acetabular cup loosening conditions (secure, and 1 and 2 mm spherical loosening) considered were simulated using Sawbones composite bones. The excitation signal was introduced in the femoral lateral condyle region using a frequency range of 100-1500 Hz. Both the 1 and 2 mm spherical loosening conditions were successfully distinguished from the secure condition, with a favourable frequency range of 500-1500 Hz. The results of this study represent a key advance on previous research into vibrometric detection of acetabular loosening using geometrically realistic model, and demonstrate the clinical potential of this technique.
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Affiliation(s)
- Abdullah A Alshuhri
- The Centre for Orthopaedic Biomechanics, Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, United Kingdom.
| | - Timothy P Holsgrove
- The Centre for Orthopaedic Biomechanics, Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, United Kingdom; Department of Engineering, College of Engineering, Mathematics & Physical Sciences, University of Exeter, Exeter EX4 4RN, United Kingdom.
| | - Anthony W Miles
- The Centre for Orthopaedic Biomechanics, Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, United Kingdom.
| | - James L Cunningham
- The Centre for Orthopaedic Biomechanics, Department of Mechanical Engineering, University of Bath, Bath BA2 7AY, United Kingdom.
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