AI-powered biomechanical modeling for ACL-reconstructed knees: predicting knee joint contact forces via computer vision and deep learning.

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Abstract

[Indexed for MEDLINE] Conflict of interest statement: Declarations. Ethics approval and consent to participate: This study complied with the principles laid down in the Declaration of Helsinki. The Ethics Committee of Ningbo University has accepted the study protocol (Approval Number: TY2025035). Consent for publication: All authors have read and approved the final manuscript and consent to its publication. No identifiable personal data are included in this article. Competing interests: The authors declare no competing interests. 3. Arthroscopy. 2019 Feb;35(2):302-303. doi: 10.1016/j.arthro.2018.08.019. Anterolateral Ligament of the Knee: Diagnosis, Indications, Technique, Outcomes. Sonnery-Cottet B(1), Vieira TD(2), Ouanezar H(2). Author information: (1)Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, Groupe Ramsay Générale de Santé, FIFA Medical Center of Excellence, Lyon, France. Electronic address: Sonnerycottet@aol.com. (2)Centre Orthopédique Santy, Hôpital Privé Jean Mermoz, Groupe Ramsay Générale de Santé, FIFA Medical Center of Excellence, Lyon, France. In the context of anterior cruciate ligament reconstruction surgery, anterolateral ligament reconstruction is now recognized as a reliable option to control rotatory instability and should be considered in the knee surgeon's modern armamentarium. By highlighting its daily practical application, this infographic presents the indications for this specific additional lateral augmentation, the anatomic and biomechanical principles that underline its rationale, and the clinical outcomes from recent large series. In 2013, Claes et al. updated the anterolateral ligament (ALL) concept, and numerous subsequent studies detailed its precise anatomy. It is now accepted that the femoral insertion is located proximal and posterior to the epicondyle. The biomechanical behavior of the ALL during the knee flexion path has been reported to provide control of tibial internal rotation during the pivot shift and with increasing knee flexion angles (>35). Clinically, when a patient presents with an anterior cruciate ligament (ACL) injury, clinical examination (pivot shift test), radiography (Segond fracture), ultrasound, and 3-dimensional magnetic resonance imaging are useful to assess a combined ALL injury. The following indications for ALL reconstruction are now well established: ACL revision, high-grade pivot shift test, chronic ACL rupture, young patients, pivoting activities, and patients undergoing medial meniscus repair. It has been reported that anatomic and minimally invasive surgical techniques that control anterolateral rotatory instability can achieve successful outcomes without specific complications. Finally, the addition of ALL reconstruction does not delay postoperative rehabilitation, and no modification is required for an early rehabilitation protocol. Copyright © 2019 Arthroscopy Association of North America. Published by Elsevier Inc. All rights reserved. DOI: 10.1016/j.arthro.2018.08.019