ArticleJournal of orthopaedic translation2020
Early degeneration of the meniscus revealed by microbiomechanical alteration in a rabbit anterior cruciate ligament transection model.
Article in Journal of orthopaedic translation, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Self-assembled meniscus-specific ECM membrane promotes cell migration and vascular ingrowth for meniscus repair and reconstruction.Journal of orthopaedic translation · 2026Article
- Current advances in animal model of meniscal injury: From meniscal injury to osteoarthritis.Journal of orthopaedic translation · 2025Review
- Adaptation of Fibril-Reinforced Poroviscoelastic Properties in Rabbit Collateral Ligaments 8 Weeks After Anterior Cruciate Ligament Transection.Annals of biomedical engineering · 2023Article
- Identification and diagnosis of meniscus tear by magnetic resonance imaging using a deep learning model.Journal of orthopaedic translation · 2022Article
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Authors and funding
7 authors.
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Abstract
backgroundThe microbiomechanical properties of the meniscus influence the cell response to the surrounding biomechanical environment and are beneficial to understand meniscus repairing and healing. To date, however, this information remains ambiguous. This study aims to characterise the microbiomechanical properties of the meniscus after degeneration in a rabbit anterior cruciate ligament transection (ACLT) model and to analyse the corresponding histology at the macroscale and chemical composition.
methodsTwenty New Zealand white rabbits were used. Menisci were collected from the knee joints 4 and 8 weeks after the ACLT and from those of the corresponding control groups. The central portions of both medial and lateral menisci were investigated using atomic force microscopy, histological study, and an energy-dispersive spectrometer. The evaluation was conducted regionally within the inner, middle, and outer sites from the top layer (facing the femoral surface) to the bottom layer (facing the tibial surface) in both the lateral and medial menisci to obtain the site-dependent properties.
resultsAt 4 weeks after surgery, the dynamic elastic modulus at the microlevel increased significantly at both the top and bottom layers compared with the intact meniscus (P = 0.021). At 8 weeks after surgery, the stiffening occurred in all regions (P = 0.030). The medial meniscus showed greater change than the lateral meniscus. All these microbiomechanical alterations occurred before the histological findings at the macroscale.
conclusionThe microbiomechanical properties in the meniscus changed significantly after ACLT and were site dependent. Their alterations occurred before the histological changes of degeneration were observed. THE TRANSLATIONAL POTENTIAL OF THIS ARTICLE: The results of our study indicated that degeneration promoted meniscus stiffening. Thus, they provide a better understanding of the disease process affecting the meniscus. Our results might be beneficial to understand how mechanical forces distribute throughout the healthy and pathologic joint. They indicate the possibility of early diagnosis using a minimally invasive arthroscopic tool, as well as they might guide treatment to the healthy and pathologic meniscus and joint.
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