The effect of different types of half pins on stress transfer parameter during osseointegration

Ibrahim, Nur Fatin Izzati; Daud, Ruslizam; Hassan, Muhamad Khairul Ali; Zain, Noor Alia Md; Azizan, A.F.

doi:10.1016/j.matpr.2019.06.108

Cited by 1 publication

(1 citation statement)

References 18 publications

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“…Various mechanical measures have been used to evaluate the bone remodelling process such as stress transfer parameters (STP) and strain energy density transfer parameter (SEDTP). One example of study used STP to determine the effect of different types of half pins on STP during osseointegration [23] while others used to evaluate the effect of thread profile on stress transfer in a magnesium fixation [11] and material [24]. While Chun-Li Lin [25] used SED to investigate the interactions for implant placement of dental implant.…”

Section: Introductionmentioning

confidence: 99%

Stress Shielding Prediction of Unicortical and Bicortical Screws: A Finite Element Analysis

Djanali¹

2023

JMechE

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The stability in an implant fixation plays a vital role in ensuring proper formation and remodelling process of the fractured bone. Failure in implant fixation is commonly associated with short- and long-term instability of the bone-implant interface. The bone-implant interaction creates a complicated mechanical interplay that might influence the stress distribution and hence the biomechanical performance stability of the implant fixation. Furthermore, implant screw parameters namely thread size, geometrical design and material properties become additional factors that affect the bone-implant interaction. The purpose of this study was to investigate the effect of unicortical and bicortical screws’ parameters on the screw-bone interaction mechanism. To evaluate the stress transfers between screw and bone, the stress parameters namely stress transfer parameters (STP) was employed. A two-dimensional (2D) finite element model of full treaded screw was simulated while varying the parameters of the screw: two types of material (stainless steel A316 and titanium alloy Ti-6Al-4V), screw length and screw pitch. It was found that the lower in elastic modulus results to the higher stress transfer between implant- bone interface. As the titanium have lower elastic modulus, it gave higher values of STP which help to transmit and distribute stress better compared to the stainless steel. While the effect of varying screw pitch between two types of screws shows that STPs values of fully threaded bicortical screws shows significant result for finer pitch size that may advancing bone remodelling process at the early stage.

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Section: Introductionmentioning

confidence: 99%

Stress Shielding Prediction of Unicortical and Bicortical Screws: A Finite Element Analysis

Djanali¹

2023

JMechE

View full text Add to dashboard Cite

show abstract

The effect of different types of half pins on stress transfer parameter during osseointegration

Cited by 1 publication

References 18 publications

Stress Shielding Prediction of Unicortical and Bicortical Screws: A Finite Element Analysis

Stress Shielding Prediction of Unicortical and Bicortical Screws: A Finite Element Analysis

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