Biomechanics in Applications

Klika, Václav

doi:10.5772/1424

Cited by 11 publications

(3 citation statements)

References 262 publications

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“…This tool's material and size are commonly used in orthopedic drilling. 29,35 The human cortical thickness is in the range of 0.2 mm to 5.5 mm 36 and, therefore, 5.5 mm thickness bone model was selected for this study. The bone model was constructed as a cylinder with 20 mm diameter to shorten the computation time.…”

Section: Construction Of Simulation Modelmentioning

confidence: 99%

Drilling of bone: Effect of drill bit geometries on thermal osteonecrosis risk regions

Akhbar

Yusoff

2018

Proc Inst Mech Eng H

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Bone-drilling operation necessitates an accurate and efficient surgical drill bit to minimize thermal damage to the bone. This article provides a methodology for predicting the bone temperature elevation during surgical bone drilling and to gain a better understanding on the influences of the point angle, helix angle and web thickness of the drill bit. The proposed approach utilized the normalized Cockroft-Latham damage criterion to predict material cracking in the drilling process. Drilling simulation software DEFORM-3D is used to approximate the bone temperature elevation corresponding to different drill bit geometries. To validate the simulation results, bone temperature elevations were evaluated by comparison with ex vivo bone-drilling process using bovine femurs. The computational results fit well with the ex vivo experiments with respect to different drill geometries. All the investigated drill bit geometries significantly affect bone temperature rise. It is discovered that the thermal osteonecrosis risk regions could be reduced with a point angle of 110°to 140°, a helix angle of 5°to 30°and a web thickness of 5% to 40%. The drilling simulation could accurately estimate the maximum bone temperature elevation for various surgical drill bit point angles, web thickness and helix angles. Looking into the future, this work will lead to the research and redesign of the optimum surgical drill bit to minimize thermal insult during bone-drilling surgeries.

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Section: Construction Of Simulation Modelmentioning

confidence: 99%

Drilling of bone: Effect of drill bit geometries on thermal osteonecrosis risk regions

Akhbar

Yusoff

2018

Proc Inst Mech Eng H

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“…The stainless steel AISI-316 was assigned to the drill bit model to resemble the standard surgical drill bit in orthopedic surgery [5,20]. The material flow stress must be determined to develop a human bone model.…”

Section: Drill Bit and Bone Materialsmentioning

confidence: 99%

“…Bone drilling is a common procedure in clinical surgeries, including for implant insertion [1,2], screw fixation [3,4], and bone fusion [5]. The heat produced from the procedure could cause thermal damage to the bone, which could kill the bone cells (thermal osteonecrosis) [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Drilling of bone: thermal osteonecrosis regions induced by drilling parameters

Akhbar¹,

Yusoff²

2019

Biomed. Phys. Eng. Express

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In bone-drilling research, thermal osteonecrosis regions have only begun to be investigated. This study evaluates the thermal osteonecrosis regions and bone temperature elevations induced by drilling parameters in drilling of human cortical bone. The finite element method (FEM) was used to simulate the drilling simulation. The simulation results were then validated with the experimental bonedrilling test. A new method called dimensionless weightage was proposed to evaluate the parameters that generate minimum thermal injury in bone-drilling. The FEM results displayed the thermal injury in the bone as a function of osteonecrosis diameter (OD), osteonecrosis depth (OH) and maximum bone temperature elevation (Tmax). These results allow precise evaluation of bone-drilling parameters' influences on thermal damage. Results revealed that with the recommended parameter ranges, Tmax, OD, and OH could be reduced up to 110.0 °C, 9.96 mm and 4.56 mm, respectively. This work represents a step toward the optimization of bone-drilling parameters, which can provide an accurate approximation of thermal damage in bone-drilling compared with previous research. Moreover, this work contributes valuable insights for engineers and clinicians to identify the favorable ranges of bone-drilling parameters in bone surgeries.

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Drag Forces in Paralympic Swimming

Pablo

2024

IFMBE Proceedings

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Biomechanics in Applications

Abstract: Insights into materials and structural basis of bone fragility from diseases associated with fractures: how determinants of the biomechanical properties of bone are compromised by disease. Endocrine Reviews.

Cited by 11 publications

References 262 publications

Drilling of bone: Effect of drill bit geometries on thermal osteonecrosis risk regions

Drilling of bone: Effect of drill bit geometries on thermal osteonecrosis risk regions

Drilling of bone: thermal osteonecrosis regions induced by drilling parameters

Drag Forces in Paralympic Swimming

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