Assessment of thermal necrosis risk regions for different bone qualities as a function of drilling parameters

Chen, Yung-Chuan; Tu, Yuan‐Kun; Tsai, Yi-Jung; Tsai, Yi‐Shan; Yen, Cheng-Yo; Yang, Shih-Chieh; Hsiao, Chih-Kun

doi:10.1016/j.cmpb.2018.05.018

Cited by 31 publications

(28 citation statements)

References 19 publications

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“…Four thermocouples were embedded at 0.5 mm from the drilling hole at the depth of 4 mm to guarantee the safety of thermocouples. 9 All of the thermocouples were calibrated using dry block calibrator JUPITER 650B (the United Kingdom) and the linearity of the calibration curves were confirmed with the regression curves fit. A thermal conductive paste OMEGATHERM 201 (Malaysia) was used in the thermocouple hole to eliminate air gap.…”

Section: Ex Vivo Bone Drilling For Validation Of Simulation Resultsmentioning

confidence: 99%

“…Correspondingly, the drill bit and human bone properties in Table 1 were obtained from the DEFORM's library and previous studies. 9,[37][38][39][40][41] Drilling hole depth was fixed at 5.0 mm to avoid the effect of hole depth to the bone temperature elevation. The initial temperature for the drill bit and bone model were 30°C and 37°C, respectively.…”

Section: Construction Of Simulation Modelmentioning

confidence: 99%

“…The factors influencing temperature elevation in bone drilling have been investigated for many years. [8][9][10] The use of cooling system has been recognized to reduce bone temperature elevation and remove bone debris. [11][12][13] However, cooling systems could promote infection to the contact surface.…”

Section: Introductionmentioning

confidence: 99%

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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: Ex Vivo Bone Drilling For Validation Of Simulation Resultsmentioning

confidence: 99%

Section: Construction Of Simulation Modelmentioning

confidence: 99%

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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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“…Chen et al . 35 . e Sellani et al . 36 . f Data originate from the published technical datasheet of Sawbones 37 . g Data originate from the published technical datasheet of Acrycast 38 . h Strbac et al .…”

Section: Discussionmentioning

confidence: 99%

The influence of the chosen in vitro bone simulation model on intraosseous temperatures and drilling times

Szalma

Lovász

Vajta

et al. 2019

Sci Rep

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There is no consensus about the most suitable in vitro simulating material investigating heat generation during bone preparation. The aim was to compare heat increases and drilling times of bone removals in different bone simulating materials and to compare them to fresh human cadaver bone. A cavity was drilled in the following samples: (1) bovine rib; (2) pig rib; (3) 20 PCF (lb/ft 3 ) polyurethane (PU) block with 3 mm (50 PCF) cortical layer; (4) 20PCF PU without cortical; (5) 30 PCF PU with 2 mm (40 PCF) cortical; (6) 30 PCF PU with 1 mm (40 PCF) cortical; (7) 30PCF PU without cortical; (8) poly-methyl-methacrylate (PMMA); (9) fresh human cadaver rib. Data were analyzed with ANOVA followed by Tukey’s post hoc tests. P < 0.05 was considered significant. Highest heat increases and slowest drilling times were found in bovine ribs (p < 0.001). Regarding temperatures, human ribs were comparable to the pig rib and to PUs having cortical layers. Considering drilling times, the human rib was only comparable to the 20 PCF PU with 3 mm cortical and to 30 PCF PU without cortical. By the tested in vitro bone removals, only the 20 PCF PU with 3 mm cortical was able to simulate human ribs, considering both temperature increases and drilling times.

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“…For example, increasing drill bit diameter increases the chisel edge length, drill flute area, and web thickness. Many studies have reported an increase in drilling outputs-normal stress, 73 drilling force, 19,97,164,174,196 torque, 85,164,174 osteonecrosis regions, 6,7 and bone temperature 2,4,6, 16,42,43,51,59,70,81,85,91,97,98,101,105,115,123,130,159,176,180,181,199 -with the increase of drill diameter. Researchers have applied two-step drill bit (a drill bit with smaller drill tip for initial bone removal and larger shaft for drilling final hole diameter) and sequential drilling technique (increasing hole diameter sequentially until desired hole size is achieved) to reduce the thermal damage in bone.…”

Section: Influences Of Miscellaneous Part On Bone Damage Diametermentioning

confidence: 99%

Surgical Drill Bit Design and Thermomechanical Damage in Bone Drilling: A Review

Akhbar

Sulong

2020

Ann Biomed Eng

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As drilling generates substantial bone thermomechanical damage due to inappropriate cutting tool selection, researchers have proposed various approaches to mitigate this problem. Among these, improving the drill bit design is one of the most feasible and economical solutions. The theory and applications in drill design have been progressing, and research has been published in various fields. However, pieces of information on drill design are dispersed, and no comprehensive review paper focusing on this topic. Systemizing this information is crucial and, therefore, the impetus of this review. Here, we review not only the state-of-the-art in drill bit designs-advances in surgical drill bit design-but also the influences of each drill bit geometries on bone damage. Also, this work provides future directions for this topic and guidelines for designing an improved surgical drill bit. The information in this paper would be useful as a onestop document for clinicians, engineers, and researchers who require information related to the tool design in bone drilling surgery.

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Assessment of thermal necrosis risk regions for different bone qualities as a function of drilling parameters

Cited by 31 publications

References 19 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

The influence of the chosen in vitro bone simulation model on intraosseous temperatures and drilling times

Surgical Drill Bit Design and Thermomechanical Damage in Bone Drilling: A Review

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