Author/Editor		Herman, S; Maček-Lebar, A; Antolič, V; Damjanić, FB; Iglič, A
Title		Centralized vs asymmetric position of a cemented femoral stem: a finite element analysis
Type		članek
Source		In: Solina F, Zajc B, eds. Računalništvo in informatika, umetna inteligenca, razpoznavanje vzorcev, biomedicinska tehnika, robotika. 2. elektrotehniška in računalniška konferenca ERK'93: zbornik. Zvezek B. Portorož: Slovenska sekcija IEEE,
Publication year		1993
Volume		str. 305-7
Language		eng
Abstract		Aseptic loosening is the most common complication after total hip replacement; the reoperation is required in 75 per cent of patients. The proper stem position in the femoral canal is essential to avoid erly aseptic loosening. Interface and bone stresses present immedialely after implanting a cemented femoral stem in varus, valgus and central position of the stem and numerically analysed using a 2D finite element model. Varus position of the stem is mechanically unfavourable due to unmeet interface stress and extremely low bone stresss on the lateral side of the femur. Too low bone stress is observed also on the medial side of the femur in the valgus case. According to our calculations central posittion of the stem is recommendable.
Descriptors		HIP PROSTHESIS BIOMECHANICS PROSTHESIS FAILURE MODELS, THEORETICAL