Biomechanical characteristics of the meniscocapsular junction of the posterior segment of the medial meniscus.

Autor: Nicolas Q; Orthopedic Surgery Department, Tours Regional University Hospital, University of Tours - CHRU Trousseau Orthopedic Trauma Department, 1C, Avenue de la République, Chambray-les-Tours, 37170, Tours, France. qni.nicolas@gmail.com.; Faculty of Medicine, University of Bretagne Occidentale, Brest, France. qni.nicolas@gmail.com., Samargandi R; Orthopedic Surgery Department, Tours Regional University Hospital, University of Tours - CHRU Trousseau Orthopedic Trauma Department, 1C, Avenue de la République, Chambray-les-Tours, 37170, Tours, France.; Orthopedic Surgery Department, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia., Calloch S; ENSTA Bretagne, UMR CNRS 6027, IRDL, Brest, France., Dubrana F; Faculty of Medicine, University of Bretagne Occidentale, Brest, France.; Orthopedic Surgery Department, Brest Regional University Hospital, Brest, France., Gunepin FX; Orthopedic Surgery, Clinique Mutualiste de la Porte de Lorient, Lorient, France., Di Francia R; Faculty of Medicine, University of Bretagne Occidentale, Brest, France.; Orthopedic Surgery Department, Brest Regional University Hospital, Brest, France.
Jazyk: angličtina
Zdroj: European journal of orthopaedic surgery & traumatology : orthopedie traumatologie [Eur J Orthop Surg Traumatol] 2024 Aug; Vol. 34 (6), pp. 2915-2923. Date of Electronic Publication: 2024 May 29.
DOI: 10.1007/s00590-024-03987-7
Abstrakt: Purpose: Despite extensive literature available on the mechanical properties of knee ligaments and menisci, research on the mechanical properties of the meniscus-capsular junction (MCJ) is lacking. This study aims to investigate the biomechanical behavior of the MCJ of the medial meniscus using a tensile failure test.
Materials and Methods: Seven dissected cadaveric knees were used for biomechanical analysis. Tensile failure tests were performed using an INSTRON ElectroPuls E1000 stress system to measure stress/strain curves, maximum load at failure, elastic limit load, elongation at break, elongation at the elastic limit, and linear stiffness, were collected and analyzed.
Results: All ruptures occurred at the MCJ. The MCJ displayed similar mechanical properties to knee ligaments. Average values were: maximum load at failure (63.9 ± 3.2 N), yield load (52.9 N ± 2.6 N), elongation at break (2.5 mm ± 0.3 mm), elongation at the elastic limit (1.25 mm ± 0.15 mm), strain at break (47.0% ± 3.5%), strain at yield (23.2% ± 2.3%), and stiffness (56.6 ± 9. N/mm -1 ).
Conclusion: The meniscus-capsular junction's mechanical properties are similar to other knee ligaments and may play a role in knee stability. The findings provide insights into the the behavior of the meniscus-capsular junction could have clinical implications for diagnosing and surgical treatment of meniscocapsular lesions.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag France SAS, part of Springer Nature.)
Databáze: MEDLINE
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