Publication

Stress Distribution Visualization on Pre- and Post-Operative Virtual Hip Joint

Related publications (32)

ScarlETH: Design and control of a planar running robot

This paper introduces the mechanical design and the control concept of the Series Compliant Articulated Robotic Leg ScarlETH which was developed at ETH Zurich for fast, efficient, and versatile locomotion. Inspired by biological systems, we seek to achieve ...

2011

Contact modeling and collision detection in human joints

Ehsan Arbabi

Collision detection among virtual objects is one of the main concerns in virtual reality and computer graphics. Usually the methods developed for collision detection are for either very general cases or very specific applications. The first main goal of th ...

EPFL2009

Estimating Hip Joint Contact Pressure from Geometric Features

Daniel Thalmann, Ronan Boulic, Ehsan Arbabi

Hip mechanical simulation for estimating pressures within the soft tissues during the loads and motions of daily activities is a common approach to investigate hip joint pathology. Many computational approaches estimate the pressure and contact pressures v ...

Springer-Verlag London Ltd, Sweetapple House Catteshall Rd Farncombe, Godalming Gu7 1Nh, Surrey, England2009

Biologically inspired CPG based above knee active prosthesis

Auke Ijspeert

The objective of the work presented here is to develop a low cost active knee prosthetic devices as real time embedded system which utilizes the available biological motor control circuit properly integrated with a Central Pattern Generator (CPG) aided con ...

2008

Passive compliant quadruped robot using central pattern generators for locomotion control

Auke Ijspeert, Ludovic Righetti, Simon Rutishauser

We present a new quadruped robot, “Cheetah”, featuring three-segment pantographic legs with passive compliant knee joints. Each leg has two degrees of freedom - knee and hip joint can be actuated using proximal mounted RC servo motors, force transmission t ...

2008

Gait analysis and WOMAC are complementary in assessing functional outcome in total hip replacement

Kamiar Aminian, Hooman Dejnabadi

Objective: To investigate the correlation between objective and subjective evaluation of patients with total hip replacement. Design: Prospective preliminary trial comparing the Western Ontario and McMaster University questionnaire ( WOMAC) and gait analys ...

2006

Evaluation of an ambulatory system for gait analysis in hip osteoarthritis and after total hip replacement

Kamiar Aminian, Philippe Robert, Bijan Najafi, Hooman Dejnabadi

Spatial and temporal parameters of gait have clinical relevance in the assessment of motor pathologies, particularly in orthopaedics. A new gait analysis system is proposed which consists of (a) an ambulatory device (Physilog(R)) including a set of miniatu ...

2004

Optimal femoral head contour segmentation in CT images using dynamic programming

Charles Baur, Gaëtan Marti

We present a new contour segmentation method for femoral head detection in CT images. The principal idea underlying our approach is to represent the contour using active rays. Each ray has internal energy (continuity and smoothness constraints), as well as ...

2004

Gait Features Assessment in Hip Osteoarthritis and Total Hip Replaced Patients Based on an ambulatory System (Physilog)

Kamiar Aminian, Philippe Robert, Bijan Najafi, Hooman Dejnabadi

Osteoarthritis is the most frequent joint pathology throughout the world. Obtaining objective, dynamic and quantified data allowing the evaluation of patients’ progress before and after hip arthroplasty is crucial. Gait analysis can be used for evaluating ...

2002

Spatio-temporal parameters of gait measured by an ambulatory system using miniature gyroscopes

Kamiar Aminian, Philippe Robert, Bijan Najafi

In this study we describe an ambulatory system for estimation of spatio-temporal parameters during long periods of walking. This original method based on wavelet analysis is proposed to compute the values of temporal gait parameters from the angular veloci ...

2002

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