Journal ArticleDOI
Infrared assessment of knee instability in ACL deficient patients
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TLDR
This study showed that the creation of ordered pairs of pathological parameters gives a wider picture of ACL deficiency and that such an algorithm may improve both examination and treatment of patients.Abstract:
Previous clinical studies have shown that anterior cruciate ligament (ACL) ruptures require reconstructive surgery. The main goal of this study is an objective test definition for unstable knee diagnosis based on real measurements by using infrared cameras and adequate software. In the study of gait analysis 35 males with deficient ACL’s participated. Pathological parameters for anterior posterior translation (APT) and internal external rotation (IER) and their values of kinematic data were obtained from a gait analysis 3D system. Movement curves were obtained by recording the position of fluorescent markers over time. A machine learning algorithm was developed in order to support decisions on the severity of the ACL injury and its corresponding deficiency. The algorithm was based on logistic regression. The value of APT, designated as exponentiation of the Ө coefficient (Exp (Ө)) of APT, showed that the likelihood of ACL-deficient knee occurrence due to higher values of APT is 1.1758 (95 % CI) times more frequent than that of the patients with lower values of APT. The value of IER, designated as Exp (Ө) of IER, showed that the patients with higher values of IER present 2.2516 (95 % CI) times higher values of ACL-deficient knee frequency than those with lower values. This study showed that the creation of ordered pairs of pathological parameters gives a wider picture of ACL deficiency and that such an algorithm may improve both examination and treatment of patients.read more
Citations
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Machine Learning in Orthopedics: A Literature Review.
TL;DR: A systematic literature review covering the articles published in the last two decades in which the authors described the application of a machine learning technique and method to an orthopedic problem or purpose is presented.
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Machine Learning Accurately Predicts Short-Term Outcomes Following Open Reduction and Internal Fixation of Ankle Fractures.
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In vivo kinematics of gait in posterior-stabilized and bicruciate-stabilized total knee arthroplasties using image-matching techniques
Koji Murakami,Satoshi Hamai,Ken Okazaki,Yifeng Wang,Satoru Ikebe,Hidehiko Higaki,Takeshi Shimoto,Hideki Mizu-uchi,Yukio Akasaki,Yasuharu Nakashima +9 more
TL;DR: The knee flexion pattern, tibiofemoral AP translation, axial rotation, and cam-post contact during gait varied, depending on the type of implant, the PS and BCS designs.
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Long-term outcome of anterior cruciate ligament tear without reconstruction: a longitudinal prospective study
Christian Konrads,Stephan Reppenhagen,Daniel Belder,Sascha Goebel,Maximilian Rudert,Thomas Barthel +5 more
TL;DR: It is shown that there is a subgroup of patients with ACL tears who are well treated with physiotherapy alone, not reconstructing the ligament, and conservative treatment of an ACL tear is a good treatment option for patients with limited demands regarding activity.
References
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Journal ArticleDOI
Ligamentous restraints to anterior-posterior drawer in the human knee. A biomechanical study.
Journal ArticleDOI
Biomechanics of knee ligaments: injury, healing, and repair
TL;DR: This review paper provides an overview of the current biological and biomechanical knowledge on normal knee ligaments, as well as ligament healing and reconstruction following injury, and deals with new and exciting functional tissue engineering approaches aimed at improving the healing of ligaments as the interface between a replacement graft and bone.
Journal ArticleDOI
Interactions between kinematics and loading during walking for the normal and ACL deficient knee.
TL;DR: Results suggest that adaptations to the patterns of muscle firing during walking can compensate for kinematic changes associated with the loss of the ACL, and would cause changes in tibiofemoral contact during walking that could cause the type of degenerative changes reported in the meniscus and the articular cartilage following ACL injury.
Journal ArticleDOI
An introduction to logistic regression: from basic concepts to interpretation with particular attention to nursing domain.
TL;DR: Nursing researchers need to pay greater attention to guidelines concerning the use and reporting of LR models, a multivariable method for modeling the relationship between multiple independent variables and a categorical dependent variable.
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