Novel surgical machining via an impact cutting method based on fracture analysis with a discontinuum bone model

Sugita, Naohiko; Shu, Liming; Shimada, Takahiro; Oshima, Masaya; Kizaki, Toru; Mitsuishi, Mamoru

doi:10.1016/j.cirp.2017.04.028

Cited by 29 publications

(9 citation statements)

References 10 publications

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“…Osteons are formed by lamellae with 3 -7 μm thickness, and contain a Haversian canal [31]. It is known that the elastic modulus and fracture strength of cement lines are considered to be lower than those of osteons and interstitial matrix [8,26,32], which results in the differences in crack propagation during various cutting processes.…”

Section: Characteristics Of Cortical Bonementioning

confidence: 99%

“…However, the understanding of the vibration-assisted cutting mechanism of bone, especially in the orthogonal cutting process, is limited. Sugita et al [26] proposed a cutting method utilizing impacts by vibration and results indicated with which the principal cutting force decreased by more than 80% in each cutting direction. Bai et al [27] investigated a high-frequency impact cutting method, and its effect on fracture propagation, chip formation, and cutting forces was studied for orthogonal cutting.…”

Section: Introductionmentioning

confidence: 99%

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Experimental investigation of material removal in elliptical vibration cutting of cortical bone

bai

Zhai

Zhao

et al. 2022

Preprint

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To benefit the tissue removal and postoperative rehabilitation, the increased efficiency and accuracy and the reduced operating force are strongly required in osteotomy. A novel elliptical vibration cutting (EVC) has been introduced for the bone cutting compared with the conventional cutting (CC) in this paper. With the assistance of the high-speed micrcope imaging and the dynamometer, the material removals of cortical bone and their cutting forces from two cutting regimes were recorded and analysed comprehensively, which clearly demonstrated the chip morphology improvement and the average cutting force reduction in the EVC process. It also revealed that the elliptical vibration of the cutting tool could promote the fracture propagation along the shear direction. These new findings will be of important theoretical and practical values to apply the innovative EVC process to the surgical procedures of osteotomy.

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Section: Characteristics Of Cortical Bonementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental investigation of material removal in elliptical vibration cutting of cortical bone

bai

Zhai

Zhao

et al. 2022

Preprint

Self Cite

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show abstract

“…100-200 μm (Rauch et al, 2007;Cowin, 2001;Ascenzi and Bonucci, 1968). However, the elastic modulus and fracture strength of cement lines are considered by many researchers to be lower than those of osteons and interstitial matrix (Budyn and Hoc, 2007;Abdel-Wahab et al, 2012;Sugita et al, 2017), thus affecting the crack propagation during cutting. Furthermore, the osteon is composed of bone lamellae and a Haversian canal.…”

Section: Characteristics Of Cortical Bonementioning

confidence: 99%

“…Material properties for fracture toughness of bone micro-structures (Sugita et al, 2017;Chan and Nicolella, 2012).…”

Section: Tablementioning

confidence: 99%

“…However, the microstructure of cortical bone was not considered. Recently, Sugita et al (2017) and Shu and Sugita (2020) analyzed the fracture phenomenon with a discontinuous bone model in vibration-assisted cutting by employing the extended finite-element approach, incorporating the detailed bone microstructure. Still, the mechanism of chip removal in impact cutting was not investigated by considering the microstructure and anisotropy of cortical bone.…”

Section: Introductionmentioning

confidence: 99%

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