Biomechanical Comparison of Different Subtrochanteric Bone Fracture Angles in Cerclage Wiring: Finite Element Study

Abstract

Cerclage wires are regularly hired as fixation gear to resource reposition, enhance alignment and growth fixation stability. In specific femoral shaft, subtrochanteric and periprosthetic fractures gain from cerclage fixation. Also in supracondylar femoral shaft fractures, extra cord cerclages proved to be extra than only a reposition device and accelerated the general power of the osteosynthesis construct. This study tests for the stabilizing effect of different bone fracture angles in with cerclage. Cerclage fixation of a oblique fractures were tested with fracture angles (45°, 55°, 65°). Construct stiffness and displacements were investigated under static loads and compared to the different bone fracture angles. With each of the tested bone fractures, stiffness wasn't significantly for a compare angles. Most reduction in fracture gap movement was achieved by 65° fracture angle, followed by 55° and 45° fractures. All cerclage wire fixation were generally superior with reduced fracture movements whereas in 65 degree fracture showing the greatest stabilizing effect. Cerclage wire application has emerged as a potential therapeutic for subtrochanteric fractures.

Keywords

• Oblique Fractures
• Cerclage Wire
• Bone Fracture Angle
• Finite Element Analysis

Serklaj Kablolamada Farklı Subtrokanterik Kemik Kırılma Açılarının Biyomekanik Karşılaştırılması: Sonlu Eleman Çalışması

Öz

Serklaj telleri, yeniden konumlandırmaya yardımcı olmak, hizalamayı iyileştirmek ve sabitleme stabilitesini artırmak için sabitleme araçları olarak sıklıkla kullanılır. Özellikle femur şaftı, subtrokanterik ve periprostetik kırıklar serklaj fiksasyonundan yararlanır. Ayrıca suprakondiler femur şaft kırıklarında, ek olarak tel serklajların tespit aracından daha fazlası olduğu ve osteosentez yapısının genel mukavvemeti arttırdığı kanıtlanmıştır. Bu çalışma, serklaj ile farklı kemik kırılma açılarının stabilize edici etkisini test etmektedir. Oblik kırıkların serklaj fiksasyonu kırık açıları ile test edildi (45°, 55°, 65°). Yapı rijitliği ve yer değiştirmeler, statik yükler altında incelendi ve farklı kemik kırılma açılarıyla karşılaştırıldı. Test edilen kemik kırıklarının her birinde sertlik, karşılaştırma açılarında anlamlı bulunmadı. Kırık boşluğu hareketindeki en azalma, 65 ° kırılma açısı ile sağlandı, bunu 55° ve 45° kırıklar izledi. Tüm serklaj teli fiksasyonu, kırık hareketlerini azaltmış ve genel olarak rijit bulunmasının yanında, en büyük stabilize edici etkiyi 65 derecelik kırıkta gösterdi. Serklaj teli uygulaması, subtrokanterik kırıklar için potansiyel bir terapötik olarak ortaya çıkmıştır.

Anahtar Kelimeler

• Oblik kırıklar
• serklaj kablolama
• kemik kırık açısı
• sonlu elemanlar analizi

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