ERBAL
- Space Physiology
- Robotics
- …
- Space Physiology
- Robotics
ERBAL
- Space Physiology
- Robotics
- …
- Space Physiology
- Robotics
A Novel Review of Temporomandibular Joint Replacement Options
A Comparison between a Healthy Human Jaw, the Free Fibula Flap Procedure, and Two Temporomandibular Joint Implants
PI: Dr. Christine Walck
Co-PI's: David Lim Yeram & Seth Rosenstein
Abstract
The aim of this study was to evaluate and compare maximum inferior displacement and net torque about the mandibular condyle during jaw-closing movement of a healthy human jaw to three different open-joint arthroplasties specifically the Free Fibula Flap (FFF) procedure, and two temporomandibular joint (TMJ) implants: a generic implant and a newly developed patient-specific (PS) implant. For this purpose kinematic and kinetic models using subject-specific anthropometric measurements obtained from a model of a 50-65 year old male of European descent acquired from the National Institute of Health within a Computer-Aided Three-Dimensional Interactive Application, were developed and assessed at one-degree increments. It was found that the PS implant most resembles the kinematics and kinetics of the healthy jaw during the jaw-closing movement. Its ability to rotate and translate allows for an inferior displacement at maximum mouth open (MMO) of 34.4 mm; a 1.27% decrease compared to the healthy jaw’s inferior displacement at MMO (34.8 mm), and a maximum net torque of 18,600 N-mm; a 34.5% decrease compared to the healthy jaw (26,300 N-mm). Whereas a rotation-constrained TMJ arthroplasty (FFF procedure and generic implant) limits the jaw to 70% of maximum condyle rotation decreasing the inferior displacement at the MMO (FFF/Generic: 22.4 mm) by 42.9% compared to the healthy jaw’s inferior displacement at MMO and prohibits net torque about the mandibular condyle after the pure rotation phase.
Acknowledgments
Special thanks to Embry-Riddle Aeronautical University’s Advanced Kinematics graduate course (ME 530). This research stemmed from the course project.
Publications
CMBBE 2021 Abstract - 17th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering
and the 5th Conference on Imaging and Visualization.
https://link.springer.com/chapter/10.1007/978-3-031-10015-4_2
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