ArticleScientific reports2018
A Multi-modality Approach Towards Elucidation of the Mechanism for Human Achilles Tendon Bending During Passive Ankle Rotation.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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9 citing papers in PubMed, 18 citations in OpenAlex.
- Influence of retrocalcaneal bursal effusion on the mechanical behavior of the Achilles tendon insertion during ankle dorsiflexion: a cadaveric study.Surgical and radiologic anatomy : SRA · 2026Article
- Characterization of scar tissue biomechanics during adult murine flexor tendon healing.Journal of the mechanical behavior of biomedical materials · 2022Article
- Method development and characterization of chick embryo tendon mechanical properties.Journal of biomechanics · 2022Article
- Biomechanical Gain in Joint Excursion from the Curvature of the Achilles Tendon: Role of the Geometrical Arrangement of Inflection Point, Center of Rotation, and Calcaneus.Diagnostics (Basel, Switzerland) · 2021Article
- A Simplified Method for Considering Achilles Tendon Curvature in the Assessment of Tendon Elongation.Sensors (Basel, Switzerland) · 2021Article
- The Kager's fat pad radiological anatomy revised.Surgical and radiologic anatomy : SRA · 2021Article
- Effective Mechanical Advantage About the Ankle Joint and the Effect of Achilles Tendon Curvature During Toe-Walking.Frontiers in physiology · 2020Article
- Patellar tendon buckling in post-operative total knee arthroplasty patients is more prominent than in healthy controls.Medical engineering & physics · 2019Article
- Ultrasonography and Particle Image Velocimetry of Gliding Characteristics of Kager's Fat Pad and Surrounding Tissues.Journal of medical ultrasoundArticle
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Authors and funding
8 authors at 5 institutions in 2 countries.
Funding
Abstract
The in vitro unconstrained Achilles tendon is nearly straight, while in vivo experiments reveal that the proximal region of the Achilles tendon, adjacent to Kager's fat pad, bends ventrally during plantarflexion but remains nearly straight during dorsiflexion. Tendon bending is an important factor in determining the displacement of the foot compared to the shortening of the muscle fibers. The objective of this study was to elucidate the various mechanisms that could cause tendon bending, which currently remain unknown. Examination of Thiel-embalmed cadavers, with preservation of native articular joint mobility, revealed that the Achilles tendon still bent ventrally even when its surrounding tissues, including the skin surface, Kager's fat pad, and distal portions of the soleus muscle were removed. Shear modulus and collagen fiber orientation were distributed homogeneously with respect to the longitudinal line of the tendon, minimizing their causative contributions to the bending. Given that tendon bending is not caused by either the nature of the deformations of the tissues surrounding the Achilles tendon or its physical properties, we conclude that it results from the geometric architecture of the Achilles tendon and its configuration with respect to the surrounding tissues.
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