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Treatment of Ligament Constructs with Exercise-conditioned Serum: A Translational Tissue Engineering Model

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Published on: June 11, 2017

A finite element analysis model to support ligamentum teres function.

Yongni Zhang¹, Jianing Wang², Linxia Gu²

¹Duquesne-China Health Institute, Duquesne University, 600 Forbes Ave, Pittsburgh, PA, 15282, USA.

Journal of Hip Preservation Surgery

|September 29, 2025

Summary

This summary is machine-generated.

The ligamentum teres (LT) experiences significant stress during hip movements, especially external rotation and at increased flexion angles. This finite element analysis supports its role as a hip joint stabilizer.

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Area of Science:

Orthopedic biomechanics
Hip joint anatomy
Finite element analysis in medicine

Background:

The precise function of the ligamentum teres (LT) in hip joint mechanics, particularly its role in limiting motion, is not fully understood.
Previous research has debated the LT's contribution to hip stability and movement control.

Purpose of the Study:

To investigate the biomechanical role of the ligamentum teres (LT) by assessing stress distribution during various hip movements using finite element analysis.
To quantify LT stress during combined movements, such as external rotation with increasing hip flexion.

Main Methods:

Construction of a 3D finite element model of the hip joint, including the LT, from MRI data.
Simulation of six hip movements (external/internal rotation, abduction/adduction, flexion/extension) and external rotation at varying flexion angles (0-90°).
Extraction and analysis of von Mises stress within the LT during simulated movements.

Main Results:

The LT exhibited a more pronounced stress increase during rotational (external/internal) and abduction/adduction movements compared to flexion/extension.
External rotation at higher hip flexion angles (up to 90°) resulted in significantly greater LT stress, peaking at 90° flexion.
Stress patterns indicate the LT acts as a sling, stabilizing the femoral head in frontal and transverse planes.

Conclusions:

The ligamentum teres (LT) is subjected to considerable stress during dynamic hip movements, confirming its biomechanical relevance.
Findings support the LT's role as a rotational stabilizer, with its stabilizing function potentially enhancing with increased hip flexion.
This study provides proof of concept for the LT's stress response and its potential contribution to overall hip joint stability.