Design for Additive Manufacturing and Finite Element Analysis of Fe-Mn Biodegradable Fracture Fixation Plate with Varying Porosity Levels

Shaikh, Mustafiz; Kahwash, Fadi; Lu, Zhilun; Alkhreisat, Mohammad; Shyha, Islam

doi:10.1007/978-3-031-42983-5_17

Cited by 1 publication

(1 citation statement)

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“…This approach helps avoid overdesign. Much of the existing literature has concentrated on deterministic analyses of porous implants [20,21] or probability-based evaluations of bulk implants. [22,23] However, studies specifically delving into the probabilistic analysis of porous implants remain relatively scarce.…”

Section: Introductionmentioning

confidence: 99%

Designing a Novel Porous Fixation Plate with a Gyroid Lattice Structure for Humerus Fractures Using a Probabilistic Approach

Kaymaz,

Yavuz,

Murat

et al. 2023

Adv Eng Mater

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Conventional fixation plates permanently attached to the body can lead to complications, such as stress shielding and aseptic loosening, due to their contact with the bone, resulting in bone loss. The contact between these solid fixation plates and the bone surface inhibits blood flow, potentially leading to necrosis at the interface. To overcome this challenge, a porous implant featuring a gyroid lattice structure for humerus bone fixation is proposed. However, designing such an implant typically involves deterministic approaches, which do not account for uncertainties in design parameters, loadings on the plate, and additive manufacturing process parameters. Consequently, the actual conditions experienced by the plate may not be accurately modeled. Herein, both deterministic and probabilistic analyses of a porous implant with a gyroid lattice structure positioned on the humeral bone is conducted. The findings are compared to the failure probabilities of both the conventional fixation plate and the optimal plate derived from a previous study. The study reveals that uncertainties in design parameters significantly influence the plate's failure probability compared to deterministic analysis, emphasizing the importance of probability‐based analyses for a reliable plate design.

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