How a pilot hole size affects osteosynthesis at the screw–bone interface under immediate loading

Affes, Fatma; Ketata, Hajer; Kharrat, Mohamed; Dammak, M.

doi:10.1016/j.medengphy.2018.07.002

Cited by 13 publications

(8 citation statements)

References 22 publications

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“…Pilot hole diameter size plays a significant role in primary screw fixation stability. Many studies have investigated the effect of bone preparation and pilot hole size on the stability screw fixation constructs 13,17,18,45 . Synthetic bone samples used in experiments have been used to reduce the intervariability among the mechanical properties of samples 46,47 .…”

Section: Discussionmentioning

confidence: 99%

“…Many studies have investigated the effect of bone preparation and pilot hole size on the stability screw fixation constructs. 13 , 17 , 18 , 45 Synthetic bone samples used in experiments have been used to reduce the intervariability among the mechanical properties of samples. 46 , 47 The HDPE block can offer a uniform and consistent density that eliminates or lessens the variability and different artifacts during screw insertion, as discussed in ASTM F1717.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of the efficacy of modal analysis in predicting the pullout strength of fixation bone screws

2022

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Background: Pilot hole preparation has been shown to have an impact on the short and long-term stability of the screw fixation constructs.Purpose: Investigation and comparison of two nondestructive modal analysis methods with conventional insertion torque (IT) and pullout tests in optimum pilot hole diameter detection.Methods: Twenty conical core titanium screws were embedded in high-density polyethylene blocks with different pilot hole diameters. The maximum IT was recorded for each screw during implantation. Then, two modal analysis methods including accelerometer (classical modal analysis [CMA]) and acoustic modal analysis (AMA) were carried out to measure the natural frequency (NF) of the bone-screw structure. Finally, stiffness (S), pullout force (F ult ), displacement at F ult (d ult ) and energy dissipation (ED) were obtained from the destructive pullout test. Results:The IT increased, as the pilot hole diameter decreased. The maximum value of IT was observed in the smallest pilot hole diameter. The same trend was found for the F ult and the first NF derived from both modal methods except for 5.5 mm pilot hole diameter. The natural NFs derived from CMA and AMA showed high correlations in different groups (R 2 = 0.94) and did not deviate from y = x hypothesis in linear regression analysis. The F ult , d ult , and ED were measured 4800 ± 172 N, 3.10 ± 0.08 mm and 14.23 ± 1.10 N.mm, respectively. Discussion: No significant change was observed in "S" between the groups. The highest F ult and first NF were obtained for the 5.5 mm pilot hole diameter. Both CMA and AMA were found to be reliable methods and can promote the undesirable contradiction between F ult and IT.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Evaluation of the efficacy of modal analysis in predicting the pullout strength of fixation bone screws

2022

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“…Other researchers have used a variety of custom devices to measure the insertion torque and compressive force applied during the insertion of medical screws into ex vivo bone and common bone analogs such as SAWBONES® [8] , [18] , [19] , [20] , [21] . Little information is provided regarding operation procedures for these devices or how to reproduce them.…”

Section: Hardware Descriptionmentioning

confidence: 99%

“…Little information is provided regarding operation procedures for these devices or how to reproduce them. Some systems measure only axial load [18] . Other systems use a wired torque sensor that limits the total number of rotations [8] or measures only the maximum insertion torque [9] .…”

Section: Hardware Descriptionmentioning

confidence: 99%

Low-speed instrumented drill press for bone screw insertion

Betts,

Brinkley,

Priddy

et al. 2023

HardwareX

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“…For example, Enns-Bray et al [19] used experimental data for the validation of anisotropic finite element models of the proximal femur. Affes et al [20] featured a pull-out experimental test of screw-bone tibial interface which served as a useful validation for the developed numerical models of the studied problem. Huang et al [21] used finite element analysis and computer tomography imaging to investigate bone stresses surrounding a dental implant; Du et al [22] placed dental implants in a human cadaver mandible, and then detailed the geometry of trabecular structures and implants with micro-CT imaging, and subsequently, the stress and strain distributions in the bone under implant loading were computed and compared with prior experimental discoveries.…”

Section: Introductionmentioning

confidence: 99%

Bone Density Micro-CT Assessment during Embedding of the Innovative Multi-Spiked Connecting Scaffold in Periarticular Bone to Elaborate a Validated Numerical Model for Designing Biomimetic Fixation of Resurfacing Endoprostheses

et al. 2021

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Our team has been working for some time on designing a new kind of biomimetic fixation of resurfacing endoprostheses, in which the innovative multi-spiked connecting scaffold (MSC-Scaffold) that mimics the natural interface between articular cartilage and periarticular trabecular bone in human joints is the crucial element. This work aimed to develop a numerical model enabling the design of the considered joint replacement implant that would reflect the mechanics of interacting biomaterials. Thus, quantitative micro-CT analysis of density distribution in bone material during the embedding of MSC-Scaffold in periarticular bone was applied. The performed numerical studies and corresponding mechanical tests revealed, under the embedded MSC-Scaffold, the bone material densification affecting its mechanical properties. On the basis of these findings, the built numerical model was modified by applying a simulated insert of densified bone material. This modification led to a strong correlation between the re-simulation and experimental results (FVU = 0.02). The biomimetism of the MSC-Scaffold prototype that provided physiological load transfer from implant to bone was confirmed based on the Huber–von Mises–Hencky (HMH) stress maps obtained with the validated finite element (FE) model of the problem. The micro-CT bone density assessment performed during the embedding of the MSC-Scaffold prototype in periarticular bone provides insight into the mechanical behaviour of the investigated implant-bone system and validates the numerical model that can be used for the design of material and geometric features of a new kind of resurfacing endoprostheses fixation.

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How a pilot hole size affects osteosynthesis at the screw–bone interface under immediate loading

Cited by 13 publications

References 22 publications

Evaluation of the efficacy of modal analysis in predicting the pullout strength of fixation bone screws

Evaluation of the efficacy of modal analysis in predicting the pullout strength of fixation bone screws

Low-speed instrumented drill press for bone screw insertion

Bone Density Micro-CT Assessment during Embedding of the Innovative Multi-Spiked Connecting Scaffold in Periarticular Bone to Elaborate a Validated Numerical Model for Designing Biomimetic Fixation of Resurfacing Endoprostheses

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