Thermal analysis during bone drilling using rigid polyurethane foams: numerical and experimental methodologies

Fernandes, Maria G.; Fonseca, E.M.M.; Natal, Renato

doi:10.1007/s40430-016-0560-4

Cited by 27 publications

(30 citation statements)

References 17 publications

(23 reference statements)

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“…All obtained conclusions in this work are important to increase the knowledge in bone drilling process, as a special topic, in all researches from our investigations (Lopes, Fernandes, Ribeiro & Fonseca, 2017), (Fernandes, Fonseca & Jorge, 2016), (Fernandes, Fonseca, & Natal, 2016), (Fernandes, Natal, Fonseca, Ribeiro, & Azevedo, 2017).…”

Section: Introductionsupporting

confidence: 53%

Dynamic Numerical Simulation of Different Drill Bit Diameter on the Polyurethane Foams Drilling

Fernandes

Fonseca

Teixeira

et al. 2017

mijst

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Drilling is one of the most common processes involved in different cutting operations and may affect the mechanical properties of the workpiece by creating residual stresses around the opened hole and highly stressed on the newly formed surface. Nevertheless, when it comes to the living tissues, drilling assumes more attention to guarantee a non-invasive procedure. Drilling of bone is common in orthopaedic surgical process, to produce a hole to screw insertion to fix the fractured members for immobilization, or even in dental implant interventions. This work describes a conventional drilling process performed on solid rigid polyurethane foams blocks with similar mechanical properties to the human bone. A dynamic and numerical study was conducted to evaluate the use of different drill diameters (4, 5 and 6mm) on the stresses generated during the process. Different simulations using an explicit dynamic program were performed to assess the level of stresses and the damage effect on the polyurethane foam

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Section: Introductionsupporting

confidence: 53%

Dynamic Numerical Simulation of Different Drill Bit Diameter on the Polyurethane Foams Drilling

Fernandes

Fonseca

Teixeira

et al. 2017

mijst

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“…Drilling is a very complex machining process, cumulating the effects of cutting and material extrusion 1 . The heat generated is a result of friction between the drill bit and the cutting surface of the drilled hole and bone chips and fragments 2 . The produced heat is influenced significantly by drill parameters (diameter, material and design of the drill including cutting face, flutes, helices, drill point) and drilling parameters (drilling speed, axial load, feeding rate, predrilling, drilling depth, method of cooling, gradual drilling etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Thermocouples allow direct temperature measurements inside the bone, but they detect only a single temperature point and need preparing pilot holes. Infrared thermography detects an overall thermal profile including also the measurement of leaking heat; however, it detects only the surface temperature, without predicting the temperature of the actual drilling site 1,2,6,11 . According to Möhlhenrich et al .’s systematic review, 18 studies used thermocouples, and 7 used thermal cameras of the involved, analyzed studies 12 .…”

Section: Introductionmentioning

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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“…Based on temperature measurements, several studies have been carried out to assess various parameters that influence surgical drilling into bone. 1,12,13,[32][33][34][35][36][37][38][39] However, the complexity of the process and the extensive number of variables involved complicates the statement of concluding remarks. Experimental models coupled to other methodologies, such as computational models, has been a common practice in this type of analysis.…”

Section: Introductionmentioning

confidence: 99%

“…Thermal and dynamic models were developed and validated based on experimental models of bone drilling. 32,35 For the experimental models, the vast majority of models use biological materials to relate bone temperature with drilling parameters. A variety of cortical and cancellous bone types have been evaluated in surgical drilling studies, such as bovine and porcine.…”

Section: Introductionmentioning

confidence: 99%

THERMAL ANALYSIS IN DRILLING OF EX VIVO BOVINE BONES

Fernandes

Fonseca

Jorge

et al. 2017

J. Mech. Med. Biol.

Self Cite

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Bone drilling is a common procedure in Medicine, mainly in traumatology and orthopedic procedure for fractures fixation and in reconstructive surgery. The success of this surgical procedure is dependent on many factors, namely, on heat generation control during the bone drilling. The main concern in bone drilling is the mechanical and thermal damage of the bone induced by inappropriate parameters such as drill speed and feed-rate during the drilling. This study focuses on the temperature generated during drilling of cortical bone tissue (bovine origin) and solid rigid polyurethane foams with similar mechanical properties to the human bone tissue. Different parameters such as drill speed, feed-rate and hole depth were tested. All results showed that improvement of the drilling parameters and the drill temperatures can be estimated. It was concluded that when the drill speed and feed-rate were higher, the bone temperature increase was lower. The obtained results of temperature in the drilling process of polyurethane foam blocks or bovine bone were compared with a good agreement in between both.

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Thermal analysis during bone drilling using rigid polyurethane foams: numerical and experimental methodologies

Abstract: density present less damage in drilling process. The developed numerical model proved to be a great tool in this kind of analysis.

Cited by 27 publications

References 17 publications

Dynamic Numerical Simulation of Different Drill Bit Diameter on the Polyurethane Foams Drilling

Dynamic Numerical Simulation of Different Drill Bit Diameter on the Polyurethane Foams Drilling

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

THERMAL ANALYSIS IN DRILLING OF EX VIVO BOVINE BONES

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