Digital volume correlation and micro-CT: An in-vitro technique for measuring full-field interface micromotion around polyethylene implants

Sukjamsri, Chamaiporn; Geraldes, Diogo M.; Grégory, Thomas; Ahmed, Farah K.; Hollis, David; Schenk, Samuel; Amis, Andrew A.; Emery, Roger; Hansen, Ulrich

doi:10.1016/j.jbiomech.2015.05.024

Cited by 37 publications

(40 citation statements)

References 34 publications

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“…This trend was also recently confirmed in the study of cancellous bone [37] and the analysis of vertebral failure patterns [108]. Further, micromotions captured by DVC were shown to be consistent with FE simulations of implants [210]. Damage in bone-cement interfaces was assessed via DVC and consistently compared with FE simulations [221].…”

Section: Identification and Validationsupporting

confidence: 66%

Digital Volume Correlation: Review of Progress and Challenges

et al. 2018

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3D imaging has become popular for analyzing material microstructures. When time lapse series of 3D pictures are acquired during a single experiment, it is possible to measure displacement fields via digital volume correlation (DVC), thereby leading to 4D results. Such ForewordThe present paper aims at reviewing the major developments in Digital Volume Correlation (DVC) over the past ten years. It follows the first review on DVC that was published in 2008 by its pioneer [11]. In the latter, the interested reader will find all the general principles associated with what is now called local DVC. They will not be recalled hereafter. In such approaches the region of interest is subdivided into small subvolumes that are independently registered. In addition to its wider use with local approaches, DVC has been extended to global approaches in which the displacement field is defined in a dense way over the region of interest. Kinematic bases using finite element discretizations have been selected. To further add mechanical content, elastic regularization has been introduced. Last, integrated approaches use kinematic fields that are constructed from finite element simulations with chosen constitutive equations. The material parameters (and/or boundary conditions) then become the quantities of interest.These various implementations assume different degrees of integration of mechanical knowledge about the analyzed experiment. First and foremost, DVC can be considered as a stand-alone technique, which has seen its field of applications grow over the last ten years. In this case the measured displacement fields and post-processed strain fields are reported. With the introduction of finite element based DVC, the measured displacement field is continuous. It is also a standalone technique. However, given the fact that it shares common kinematic bases with numerical simulations, it can be easily combined with the latter. One route is to require local satisfaction of equilibrium via mechanical regularization. Another route is to fully merge DVC analyses and numerical simulations via integrated approaches. Different examples will illustrate how these various integration steps can be tailored and what are the current challenges associated with various approaches.

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Section: Identification and Validationsupporting

confidence: 66%

Digital Volume Correlation: Review of Progress and Challenges

et al. 2018

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“…Meshes with characteristic edge length of 1.5 mm, which were the finest meshes we were able to utilise given the complexity of the model, the number of model variants and the computational resources we had available, were thus consistently implemented. It should be noted that meshes of equivalent element type and similar density were used and experimentally validated in previous studies conducted in our group to assess micromotion of a glenoid implant inserted into a porcine scapula [16], and strains occurring at the vicinity of atibial component used in knee replacement inserted into a cadaveric human tibia [47].…”

Section: Methodsmentioning

confidence: 99%

“…hip, [14], [15]; shoulder, [16], [17], [18]). Several studies have employed FEM to explore the performance of current TAR devices: Terrier et al [19], [20], [21] modelled the Salto ® implanted in the tibia to explore bone strains and stresses occurring at the implant vicinity.…”

Section: Introductionmentioning

confidence: 99%

“…Saltzman et al [24] found that elongation of the tibiocalcaneal ligament was considerably increased by varus/valgus malpositioning, and Espinosa et al [22] found that such malpositioning increased pressures acting on the mobile component, which could lead to premature PE wear. Varus/valgus and dorsi-/plantar-flexed malpositioning of TAR components reported in the literature [27] may lead to a gap between the implant and the bone (often seen clinically on post-operative x-rays), which is likely to result in increased micromotion (as identified in a study assessing micromotion of a prosthetic glenoid, [16]). However, despite these clinical observations, the impact of TAR malpositioning on implant primary stability remains unexplored.…”

Section: Introductionmentioning

confidence: 99%

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Total ankle replacement design and positioning affect implant-bone micromotion and bone strains

Sopher

Amis

Calder

et al. 2017

Medical Engineering & Physics

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“…More recently, micromotion measurement techniques based on micro-computed tomography (micro-CT) imaging were introduced, and demonstrated great potential. Notwithstanding the very high number of measurement points they can collect, they were limited to measurement around non-metallic implants due to imaging artifacts (Sukjamsri et al, 2015) or confined to a small portion of the implant (Gortchacow et al, 2012(Gortchacow et al, , 2011.…”

Section: Introductionmentioning

confidence: 99%

Full-field measurement of micromotion around a cementless femoral stem using micro-CT imaging and radiopaque markers

Camine

Rüdiger

Pioletti

et al. 2016

Journal of Biomechanics

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a b s t r a c tA good primary stability of cementless femoral stems is essential for the long-term success of total hip arthroplasty. Experimental measurement of implant micromotion with linear variable differential transformers is commonly used to assess implant primary stability in pre-clinical testing. But these measurements are often limited to a few distinct points at the interface. New techniques based on microcomputed tomography (micro-CT) have recently been introduced, such as Digital Volume Correlation (DVC) or markers-based approaches. DVC is however limited to measurement around non-metallic implants due to metal-induced imaging artifacts, and markers-based techniques are confined to a small portion of the implant. In this paper, we present a technique based on micro-CT imaging and radiopaque markers to provide the first full-field micromotion measurement at the entire bone-implant interface of a cementless femoral stem implanted in a cadaveric femur. Micromotion was measured during compression and torsion. Over 300 simultaneous measurement points were obtained. Micromotion amplitude ranged from 0 to 24 mm in compression and from 0 to 49 mm in torsion. Peak micromotion was distal in compression and proximal in torsion. The technique bias was 5.1 mm and its repeatability standard deviation was 4 mm. The method was thus highly reliable and compared well with results obtained with linear variable differential transformers (LVDTs) reported in the literature. These results indicate that this micro-CT based technique is perfectly relevant to observe local variations in primary stability around metallic implants. Possible applications include pre-clinical testing of implants and validation of patient-specific models for pre-operative planning.

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Digital volume correlation and micro-CT: An in-vitro technique for measuring full-field interface micromotion around polyethylene implants

Cited by 37 publications

References 34 publications

Digital Volume Correlation: Review of Progress and Challenges

Digital Volume Correlation: Review of Progress and Challenges

Total ankle replacement design and positioning affect implant-bone micromotion and bone strains

Full-field measurement of micromotion around a cementless femoral stem using micro-CT imaging and radiopaque markers

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