Investigation of hip prosthesis wear with finite element analysis based on femur musculoskeletal system

Year 2019, , 268 - 277, 26.12.2019

Erkan Bahçe , Derya Karaman , Mehmet Sami Güler

https://doi.org/10.35193/bseufbd.611874

Abstract

The use of hip prostheses
increases with increasing average life expectancy and population. In spite of
the superior clinical success, loosening of the hip prostheses and the
resumption of painful processes due to abrasion have become expected. In order
to prevent this, the studies carried out in vitro have been tested in the field
of health. In this article, in order to provide the in vitro test conditions in
hip prostheses in shorter times, analyses were performed by Finite Element
Method which defined musculoskeletal simulation. For this purpose, femoral bone
of adult patient, hip prosthesis and 172 muscle unit load value were used. As a
result of the analyzes, it was determined that the muscle systems reduce the
wear depth and stresses.

Keywords

Femoral Stem, Wear, Ti6Al4V, Finite Element Method

KALÇA PROTEZLERİNDE OLUŞAN AŞINMANIN FEMUR KAS-İSKELET SİSTEMİ TABANLI SONLU ELEMANLAR ANALİZİ İLE İNCELENMESİ

Abstract

Kalça protez kullanımı artan ortalama yaşam süresine
ve nüfusa bağlı olarak gün geçtikçe artmaktadır. Üstün klinik başarıya rağmen aşınmaya
bağlı olarak kalça protezlerinin gevşemesi ve ağrılı süreçlerin tekrar
başlaması beklenen bir durum haline gelmiştir. Bunların engellenebilmesi için
yapılan çalışmalar in vitro ortamlarda test edilerek sağlık alanında gelişmeler
kaydetmektdir. Bu makalede de kalça protezlerinde ki in vitro test koşullarını
daha kısa sürelerde sağlamak amacıyla kas-iskelet simülasyon tanımlanan Sonlu
Elemanlar Yöntemi ile analizler gerçekleştirildi. Bunun için erişkin hastaya
ait femur kemiği, bu kemiğe uygun kalça protezi ve 172 adet kas birim yük
değeri kullanıldı. Yapılan analizler sonucunda kas sistemlerinin aşınma
derinliğini ve gerilmeleri azalttığı belirlendi. 

Keywords

Femoral Stem, Aşınma, Ti6Al4V, Sonlu Elemanlar Yöntem

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