Experimental and numerical investigation of cracking behavior of cortical bone in cutting

Alam, Khurshid

doi:10.3233/thc-140848

Cited by 15 publications

(5 citation statements)

References 23 publications

(24 reference statements)

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“…These results are also consistent with cyclic loading studies. 31 For Drill C, the vertical force was greater than that of Drill B. However, more microcracks were found for Drill B, because Drill C had more flutes than Drill B, and drill flutes determine the compaction and speed of the chips expelled from the cutting region.…”

Section: Mechanical Damagementioning

confidence: 92%

Mechanical and thermal damage in cortical bone drilling in vivo

Zhang

Wang

et al. 2019

Proc Inst Mech Eng H

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Recently, the failure rate of fracture fixation to fractured bone has increased. Mechanical and thermal damage to the bone, which influences the contact area and cell growth between the bone and the screw, is the primary reason for fixation failure. However, research has mainly focused on force and temperature in bone drilling. In this study, the characteristics of hole edges, microcracks, empty lacunae, and osteon necrosis were investigated as viewed in the transverse and longitudinal sections after drilling. Drilling force and temperature were also recorded for comparing the relationship with mechanical and thermal damage. Experiments were conducted in vivo using five different drill geometries under the same drilling parameters. Characteristics of the hole wall were detected using computed tomography. Microcracks and necrosis were analyzed using the pathological sectioning method. The maximum microcrack was approximately 3000 and 1400 μm in the transverse section and longitudinal section, respectively, which were much larger than those observed in previous studies. Empty lacuna and osteon necrosis, starting from the Haversian canal, were also found. The drill bit geometry, chisel edge, flute number, edges, and steps had a strong effect on bone damage, particularly the chisel edge. The standard and classic surgical drill caused the greatest surface damage and necrosis of the five drill bit geometries studied. The microstructural features including osteons and matrix played an important role in numbers and length of microcracks and necrosis. More microcracks were generated in the transverse direction, while a greater length of the empty lacuna was generated in the longitudinal direction under the same drilling parameters. Microcracks mainly propagated in a straight manner in and parallel to the interstitial bone matrix and cement line. Drilling forces were not directly correlated with bone damage; thus, hole performance should be considered to evaluate the superiority and inferiority of drill bits rather than the drill force alone.

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Section: Mechanical Damagementioning

confidence: 92%

Mechanical and thermal damage in cortical bone drilling in vivo

Zhang

Wang

et al. 2019

Proc Inst Mech Eng H

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“…The plastic deformation capacity of bone, that lithic does not have, opens an additional research field on deformations and cracks localized in the stress area, which may affect not only the bone surface but also the underlying internal structure and are likely to supply diagnostic criteria for tool recognition. Among the imaging techniques providing access to the internal structure of solid matters, microtomography [121] is particularly suitable for the observation of damage and micro-damage into the cortical tissue [122][123][124][125][126][127][128]. It is a nondestructive imaging technique based on X-ray slices recombined for getting a 3D model of the scanned object, according to the principle of Computerized Tomography [129,130].…”

Section: Internal Traceologymentioning

confidence: 99%

On the Quina side: A Neanderthal bone industry at Chez-Pinaud site, France

Baumann

Plisson

Maury³

et al. 2023

PLoS ONE

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Did Neanderthal produce a bone industry? The recent discovery of a large bone tool assemblage at the Neanderthal site of Chagyrskaya (Altai, Siberia, Russia) and the increasing discoveries of isolated finds of bone tools in various Mousterian sites across Eurasia stimulate the debate. Assuming that the isolate finds may be the tip of the iceberg and that the Siberian occurrence did not result from a local adaptation of easternmost Neanderthals, we looked for evidence of a similar industry in the Western side of their spread area. We assessed the bone tool potential of the Quina bone-bed level currently under excavation at chez Pinaud site (Jonzac, Charente-Maritime, France) and found as many bone tools as flint ones: not only the well-known retouchers but also beveled tools, retouched artifacts and a smooth-ended rib. Their diversity opens a window on a range of activities not expected in a butchering site and not documented by the flint tools, all involved in the carcass processing. The re-use of 20% of the bone blanks, which are mainly from large ungulates among faunal remains largely dominated by reindeer, raises the question of blank procurement and management. From the Altai to the Atlantic shore, through a multitude of sites where only a few objects have been reported so far, evidence of a Neanderthal bone industry is emerging which provides new insights on Middle Paleolithic subsistence strategies.

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“…15 Bone FE studies modelled with the JC material model were presented in orthopaedic surgical methods such as cutting, drilling and perforation of cortical bone. [16][17][18][19][20] However, although there was enough pullout (PO) FEM work, [21][22][23][24] very few studies modelled the bone with JC material model. 25,26 Human activities and accidents cause bone screws to be subjected to back and forth or sudden impact forces.…”

Section: Introductionmentioning

confidence: 99%

3D pull-out finite element simulation of the pedicle screw-trabecular bone interface at strain rates

Çetin

Bircan

2021

Proc Inst Mech Eng H

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Biomedical experimental studies such as pull-out (PO), screw loosening experience variability mechanical properties of fresh bone, legal procedures of cadaver bone samples and time-consuming problems. Finite Element Method (FEM) could overcome experimental problems in biomechanics. However, material modelling of bone is quite difficult, which has viscoelastic and viscoplastic properties. The study presents a bone material model which is constructed at the strain rates with the Johnson-Cook (JC) material model, one of the robust constitutive material models. The JC material constants of trabecular bone are determined by the curve fitting method at strain rates for the 3D PO finite element simulation, which defines the screw-bone interface relationship. The PO simulation is performed using the Abaqus/CAE software program. Bone fracture mechanisms are simulated with dynamic/explicit solutions during the PO phenomenon. The paper exposes whether the strain rate has effects on the PO performance. Moreover, simulation reveals the relationship between pedicle screw diameter and PO performance. The results obtained that the maximum pull-out force (POF) improves as both the screw diameter and the strain rate increase. For 5.5 mm diameter pedicle screw POFs were 487, 517 and 1708 N at strain rate 0.00015, 0.015 and 0.015 s−1, respectively. The FOFs obtained from the simulation of the other screw were 730, 802 and 2008 N at strain rates 0.00015, 0.0015 and 0.015, respectively. PO phenomenon was also simulated realistically in the finite element analysis (FEA).

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Experimental and numerical investigation of cracking behavior of cortical bone in cutting

Cited by 15 publications

References 23 publications

Mechanical and thermal damage in cortical bone drilling in vivo

Mechanical and thermal damage in cortical bone drilling in vivo

On the Quina side: A Neanderthal bone industry at Chez-Pinaud site, France

3D pull-out finite element simulation of the pedicle screw-trabecular bone interface at strain rates

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