Stress distribution on a valgus knee prosthetic inclined interline -- a finite element analysis.

Finite element analysis of the valgus knee joint of an obese child

BACKGROUND Knee valgus and varus morbidity is at the second top place in children lower limb deformity diseases. It may cause abnormal stress distribution. The magnitude and location of contact forces on tibia plateau during gait cycle have been indicated as markers for risk of osteoarthritis. So far, few studies reported the contact stress and force distribution on tibial plateau of valgus kne...

Prediction of Crack Initiation Direction for Inclined Crack Under Biaxial Loading by Finite Element Method

This paper presents a simple method based on strain energy density criterion to study the crack initiation angle by finite element method under biaxial loading condition. The crack surface relative displacement method is used to eliminate the calculation of the stress intensity factors which are normally required. The analysis is performed using higher order four node quadrilateral element. The...

Evaluation of Laser-Lok microgrooves on the stress distribution of crestal bone by Finite Element Analysis

Parametric analysis using the finite element method to investigate prosthetic interface stresses for persons with below-knee amputation

A finite element (FE) model of the below-knee residual limb and prosthetic socket was created to investigate the effects of parameter variations on the interface stress distribution during static stance . This model was based upon geometric approximations of anthropometric residual limb geometry . The model was not specific to an individual with amputation, but could be scaled to approximate th...

Effect of frontal plane tibiofemoral angle on the stress and strain at the knee cartilage during the stance phase of gait.

Subject-specific three-dimensional finite element models of the knee joint were created and used to study the effect of the frontal plane tibiofemoral angle on the stress and strain distribution in the knee cartilage during the stance phase of the gait cycle. Knee models of three subjects with different tibiofemoral angle and body weight were created based on magnetic resonance imaging of the k...