A novel approach for optimal graft positioning and tensioning in anterior cruciate ligament reconstructive surgery based on the finite element modeling technique

The Knee ◽  
2020 ◽  
Vol 27 (2) ◽  
pp. 384-396
Author(s):  
Hamid Naghibi ◽  
Dennis Janssen ◽  
Tony Van Tienen ◽  
Sebastiaan Van de Groes ◽  
Ton Van de Boogaard ◽  
...  
Keyword(s):  
Finite Element ◽  
Anterior Cruciate Ligament ◽  
Finite Element Modeling ◽  
Reconstructive Surgery ◽  
Cruciate Ligament ◽  
Modeling Technique ◽  
Element Modeling ◽  
Novel Approach ◽  
Anterior Cruciate ◽  
Graft Positioning

Effect of Menisci Presence on Anterior Cruciate Ligament Stress and Strain in a Finite Element Model

2016 ◽  
Vol 48 ◽  
pp. 888 ◽  
Author(s):  
Edward Nyman ◽  
Marcel L. Ingels ◽  
Amirhesam Amerinatanzi ◽  
Rodney K. Summers ◽  
Timothy E. Hewett ◽  
...  
Keyword(s):  
Finite Element ◽  
Anterior Cruciate Ligament ◽  
Finite Element Model ◽  
Cruciate Ligament ◽  
Element Model ◽  
Stress And Strain ◽  
Anterior Cruciate

scholarly journals Evaluation of Anterior Cruciate Ligament Surgical Reconstruction Through Finite Element Analysis

2021 ◽  
Author(s):  
Konstantinos Risvas ◽  
Dimitar Stanev ◽  
Lefteris Benos ◽  
Konstantinos Filip ◽  
Dimitrios Tsaopoulos ◽  
...  
Keyword(s):  
Finite Element ◽  
Anterior Cruciate Ligament ◽  
Reference Model ◽  
Numerical Models ◽  
Cruciate Ligament ◽  
Surgical Techniques ◽  
Surgical Reconstruction ◽  
Modeling Framework ◽  
Element Analysis ◽  
Anterior Cruciate

Abstract Anterior Cruciate Ligament (ACL) tear is one of the most common knee injuries. The ACL reconstruction surgery aims to restore healthy knee function by replacing the injured ligament with a graft. Proper selection of the optimal surgery parameters is a complex task. To this end, we developed an automated modeling framework that accepts subject-specific geometries and produces finite element knee models incorporating different surgical techniques. Initially, we developed a reference model of the intact knee, validated with data provided by the OpenKnee project. This helped us evaluate the effectiveness of estimating ligament stiffness directly from MRI. Next, we performed a plethora of “what-if” simulations, comparing responses with the reference model. We found that a) increasing graft pretension and radius reduces relative knee displacement, b) the correlation of graft radius and tension should not be neglected, c) graft fixation angle of 20 degrees can reduce knee laxity, and d) single-versus double-bundle techniques demonstrate comparable performance in restraining knee translation. In most cases, these findings confirm reported values from comparative clinical studies. The numerical models are made publicly available, allowing for experimental reuse and lowering the barriers for meta-studies. The modeling approach proposed here can complement orthopedic surgeons in their decision-making.

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