Fracture analysis of a total hip prosthesis based on reverse engineering

Babić, Milena; Verić, Ozren; Božić, Željko; Sušić, Aleksandar

doi:10.1016/j.engfracmech.2019.05.003

Cited by 28 publications

(4 citation statements)

References 31 publications

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“…Additionally, implant materials should exhibit outstanding wear resistance, especially for articulating surfaces such as hip and knee prostheses, often associated with surface hardness. Minimizing the formation and propagation of cracks is also vital in high-load applications [29].…”

Section: • 12 Mechanical Propertiesmentioning

confidence: 99%

Biodegradable Magnesium Alloys for Biomedical Implants: Properties, Challenges, and Surface Modifications

Thomas,

Zafar,

Pitt

et al. 2023

Preprint

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Biomedical devices made from high-modulus and hardness materials play a critical role in enhancing the quality of life for individuals with bone-related ailments. While these materials have been successfully used in orthopedic applications, concerns including stress-shielding have necessitated the exploration of alternative solutions. An ideal biomedical implant requires a delicate balance of mechanical performance, corrosion resistance, tissue biocompatibility, and other properties such as tribological performance and osseointegration. This review explores the suitability of biodegradable magnesium (Mg) alloys as a promising material for biomedical implants. It delves into the essential properties of biomedical implants, emphasizing the importance of matching mechanical characteristics with human bone properties to mitigate stress shielding. The corrosion properties of implant materials are discussed, highlighting the need for controlled degradation to ensure the safety and longevity of implants. The focus then shifts to the potential of magnesium alloys as biomedical implants, examining their benefits, limitations, and the challenges associated with their high degradation rates and less-than-satisfactory mechanical properties. Alloying with elements such as aluminum, zinc, and others is explored to improve magnesium alloys' mechanical performance and corrosion resistance. Furthermore, this review discusses surface modification techniques, including chemical conversion coatings and biomimetic deposition, as effective strategies to enhance the corrosion resistance and biocompatibility of magnesium and its alloys. These modifications offer opportunities to improve the long-term performance of magnesium-based biomedical implants. This paper provides a comprehensive overview of the properties, challenges, and potential solutions associated with biodegradable magnesium alloys as a promising material for biomedical implants. It underscores the importance of addressing issues related to mechanical performance, corrosion resistance, and biocompatibility to advance the development of safe and effective biomedical implant materials.

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Section: • 12 Mechanical Propertiesmentioning

confidence: 99%

Biodegradable Magnesium Alloys for Biomedical Implants: Properties, Challenges, and Surface Modifications

Thomas,

Zafar,

Pitt

et al. 2023

Preprint

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“…Most of them 21–23 investigated the damage in intramedullary fixated cemented prostheses (cement mantle part) regarding the site of crack initiation, crack number, and crack growth rate. Moreover, optical 3D scanning and a finite element model successfully predicated the maximum principal stress in the femoral component in different cases of loosening 24,25 . They concluded that the crack initiated in the posterior‐lateral side of the loosened femoral component 25 …”

Section: Introductionmentioning

confidence: 98%

“…Based on the XFEM, the static and fatigue crack growth was monitored to the failure. 16,18 Several researchers [21][22][23][24] studied the damage in the artificially cemented hip joint when the acetabular cup positioning angle = 0 . Most of them [21][22][23] investigated the damage in intramedullary fixated cemented prostheses (cement mantle part) regarding the site of crack initiation, crack number, and crack growth rate.…”

mentioning

confidence: 99%

“…Moreover, optical 3D scanning and a finite element model successfully predicated the maximum principal stress in the femoral component in different cases of loosening. 24,25 They concluded that the crack initiated in the posterior-lateral side of the loosened femoral component. 25 The main objective of the present work is to examine the effect of pelvic positioning and femur movement on stem failure in the hip joint under static and fatigue loadings.…”

mentioning

confidence: 99%

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Failure assessment of hip stem due to pelvic positioning and femoral stem loosening

Framawy,

Abd‐Elhady,

Ahmad

et al. 2023

Fatigue Fract Eng Mat Struct

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The hip joint is subjected to different loads, leading to hip stem failure from the crack nucleation to the final implant failure. The main objective of the present work is to assess hip stem damage due to pelvic positioning and femur movement. The three‐dimensional finite element analysis (3D FEA) was created to simulate the artificial hip joint subjected to static or cyclic loading. The fatigue crack growth rate in the hip stem was investigated based on the extended finite element method (XFEM) with the cycle fatigue approach. The femoral stem loosening during adduction and abduction movements, which may have occurred, was considered. The numerical results showed that the von Mises stress value increases as the loosening distance increases, which appears with the decrease of the cup positioning angle. Furthermore, the pelvic positioning does not affect the crack initiation site, while the loosening and femur movement affect the crack initiation site. On the other hand, the fatigue crack growth rate was affected by pelvic positioning, loosening, and femur movement.

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A numerical study on fatigue design of Ti-6Al-4V total hip stem: infinite-life and damage tolerance approaches using XFEMPN-VCCT

2023

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Fracture analysis of a total hip prosthesis based on reverse engineering

Cited by 28 publications

References 31 publications

Biodegradable Magnesium Alloys for Biomedical Implants: Properties, Challenges, and Surface Modifications

Biodegradable Magnesium Alloys for Biomedical Implants: Properties, Challenges, and Surface Modifications

Failure assessment of hip stem due to pelvic positioning and femoral stem loosening

A numerical study on fatigue design of Ti-6Al-4V total hip stem: infinite-life and damage tolerance approaches using XFEMPN-VCCT

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