Design aspects involved in a cemented THA stem failure case

Griza, Sandro; Zanon, Gabriele; Silva, E.P.; Bertoni, Fabiano; Reguly, Afonso; Strohaecker, Telmo Roberto

doi:10.1016/j.engfailanal.2008.06.016

Cited by 23 publications

(6 citation statements)

References 22 publications

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“…The shape of hip prosthesis is complex. It consists of a femoral head and a stem, which serve in load bearing, wear and fatigue resistance [4][5][6]. Numerous studies have reported on the problems of fatigue fracture and wear of the femoral head surface [5][6][7], mechanical strength [4][5][6][7][8] and the stability of the stem of a hip prosthesis [9].…”

Section: Introductionmentioning

confidence: 99%

Effect of surface and bulk plastic deformations on the corrosion resistance and corrosion fatigue performance of AISI 316L

Ahmed

Mhaede

Wollmann

et al. 2014

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Effect of surface and bulk plastic deformations on the corrosion resistance and corrosion fatigue performance of AISI 316L

Ahmed

Mhaede

Wollmann

et al. 2014

Surface and Coatings Technology

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“…Today, a wide range of total hip prosthesis designs, differing in geometric configurations and features, is available, for example two different designs are shown on Figure 4. Surgeons now have the ability to closely mimic the original geometry of the hip using the whole range of different stem lengths, for both primary and highly complicated revisions and operations [50][51][52][53][54][55][56]. Progress in the field of chemistry and application of bone cement has led to uniform, reliable implantation.…”

Section: The Current Approach To Research and Design Of The Implantmentioning

confidence: 99%

The current approach to research and design of the artificial hip prosthesis: a review

Čolić¹,

Sedmak²

2016

Rheumatol Orthop Med

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One of the most successful techniques in restoration of degenerated joint functions is total hip replacement. This surgical approach includes removal of diseased cartilage and bone parts, and replacement by the corresponding joint prostheses. By using metal alloys, high quality plastic and polymer materials, orthopedic surgeons can reconstruct hip fractures, or replace a painful, dysfunctional joint with highly functional, long-lasting prostheses, enabling hundreds of thousands of people to live a more fulfilling and active life. However, most of these implants only last for 10-15 years, and one of the most common problems for both patients and doctors is implant failure. Observed in long-term, implant loosening is the main cause of failure. Occasionally, dislocation or bending of implants may occur. Fatigue fracture and wear were identified as the main problems related to loosening of implants, stress shielding, and final implant failure. There are several factors which contribute to implant integrity, including material and design, implant positioning, cementing technique and patient characteristics. To improve integrity and life of hip implant by using finite element analysis, two major factor should be considered, design and biomaterial. By using this method there are various parameters that should be define, including complex geometry of the bone and an implant, biomaterial properties, and specifics boundary conditions, i.e. contact between the hip prosthesis and the bone depending on fixation method. In orthopedic biomechanics finite element method was first used for the purpose of determining the stresses in human bones. Since then, this method has been more and more frequently applied in determining of stress state in bones and prostheses, as well as fracture fixation devices, including hip implants. This paper presents a review study of factors influencing design process and structural integrity of the hip implant.

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“…Penggunaannya terbentang dari perangkat sederhana seperti osteosynthesis plates [4] sampai yang lebih canggih seperti hip prosthesis [3]. Bentuk hip prostheses kompleks yang terdiri dari kepala femoral dan batang yang mengkopensasi beban bantalan, keausan dan ketahanan lelah [5].…”

Section: Pendahuluanunclassified

Pengaruh Ball Peening terhadap Kekerasan Baja Tahan Karat AISI 316L

Widodo

Raharjo

2016

JRM

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In this work, ball peening was performed in order to evaluate its effect on the AISI 316L hardness. The process was conducted by employing AISI E52100 Chrome Steel ball which has hardness 752 HVN as bomber. In this research ball peening process was performed at three different nozzle pressure (6, 7, and 8 bar) for 5 minutes. Vickers Micro Hardness Tester and Digital Optical Microscope was used to characterize the samples hardness and grains structure respectively. The results showed that the hardness of AISI 316L was improved. It may due to plastic deformation which toke places on its grains.

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Design aspects involved in a cemented THA stem failure case

Cited by 23 publications

References 22 publications

Effect of surface and bulk plastic deformations on the corrosion resistance and corrosion fatigue performance of AISI 316L

Effect of surface and bulk plastic deformations on the corrosion resistance and corrosion fatigue performance of AISI 316L

The current approach to research and design of the artificial hip prosthesis: a review

Pengaruh Ball Peening terhadap Kekerasan Baja Tahan Karat AISI 316L

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