Identificación del ligamento córacoclavicular medial o de Caldani en imágenes de resonancia magnética. Protocolo original y aplicaciones clínicas. [Identification of medial coraco-clavicular (Caldani's) ligament by magnetic resonance imaging. Original procedure and clinical applications.]

Azulay, Guillermo; Mamone, Alejandro; Moya, Daniel; Poitevin, Luciano A.; Postan, Daniel

doi:10.15417/640

Cited by 3 publications

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“…21, 22, 23, 24, 25, 26, 27 , 30, 33 , 34, 37 , 40, 41 The MCCL is a true “hand-fan” of fibers, whose apex converges at the coracoid process and whose axis constitutes the body of the ligament. Recently, Azulay et al 2 found the MCCL in all cases in a consecutive series including 7 volunteers studied by magnetic resonance imaging.…”

Section: Discussionmentioning

confidence: 95%

The medial coracoclavicular ligament: anatomy, biomechanics,and clinical relevance—a research study

et al. 2018

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BackgroundThe medial coracoclavicular ligament (MCCL), is a structure that shows defined morphologic and histologic features. However, little attention has been paid to the MCCL to date. This study was conducted to (1) determine whether the MCCL is a constant structure, (2) analyze its mechanical properties, and (3) determine its possible role in acromioclavicular (AC) stability.MethodsAC joints, lateral coracoclavicular ligaments (LCCLs; conoid and trapezoid), and MCCLs were dissected in 30 fresh frozen upper limbs. In 6 of these specimens, we performed a sequential sectioning following the aforementioned order. A 20-N cephalad force was applied to the lateral clavicle at each step, recording the AC distance and coracoclavicular space and their variation. In 6 other specimens, we evaluated the anteroposterior motion of the clavicle following the MCCL section. Biomechanical testing was performed in 8 specimens, comparing the resistance of the MCCL to the LCCLs.ResultsThe MCCL in all of the specimens featured a sharp-edge bundle stretching from the coracoid process to the clavicle and subclavius sheath. It showed ligament-like mechanical properties although less tensile resistance than the LCCLs. Once the AC and LCCLs were sectioned, transection of the MCCL determined a significant increase in both cephalad and posterior displacement.ConclusionThe MCCL is a constant structure with the mechanical behavior of a ligament. It may act as the last container of the coracoclavicular space both in cephalad and posterior directions, precluding additional displacement in the absence of the LCCLs.

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Section: Discussionmentioning

confidence: 95%

The medial coracoclavicular ligament: anatomy, biomechanics,and clinical relevance—a research study

et al. 2018

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Presurgical perspective and postsurgical evaluation of acromioclavicular joint instability

Yubran,

Pesquera,

Juan

et al. 2023

Skeletal Radiol

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Avaliação dos ligamentos acromioclavicular, coracoclaviculares e coracoclavicular medial na luxação acromioclavicular

Filho

Freitas

Nunes

et al. 2021

Rev Bras Ortop (Sao Paulo)

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Resumo Objetivo Estudar a anatomia do ligamento coracoclavicular medial e avaliar a contribuição do ligamento acromioclavicular, coracoclaviculares e coracoclavicular medial na estabilidade da articulação acromioclavicular. Métodos Foram dissecados 26 ombros de 16 cadáveres frescos, posicionados em decúbito dorso-horizontal, com um coxim de 15 cm de altura entre as escápulas. Realizou-se uma via deltopeitoral estendida proximal e medialmente. Realizou-se dissecção por planos e identificação dos ligamentos. Realizou a medida da distância acromio-clavicular e coracoclavicular usando pontos previamente demarcados com paquímetro milimetrado. Em seis dessas amostras foi realizado estudo biomecânico. Seccionando, nesta ordem, o ligamento acromioclavicular, os coracoclaviculares e o ligamento coracoclavicular medial com uma força cefálica de 20N foi aplicada na clavícula lateral. Foi medida a distância acromio-clavicular e coracoclavicular em cada uma das etapas de secção dos ligamentos. Resultados A média de comprimento do ligamento coracoclavicular medial foi de 48,9mm e a média de largura, de 18,3mm no lado direito. No esquerdo, a média de comprimento foi de 48,65mm e a média da largura, 17,3mm. Após a secção dos ligamentos acromioclaviculares, coracoclaviculares, com a secção do ligamento coracoclavicular medial houve aumento estatisticamente significativo da distância córaco-clavicular e um deslocamento posterior da escápula. Conclusão O ligamento coracoclavicular medial é uma estrutura ligamentar verdadeira, presente em todos os ombros dissecados. Nossos resultados demonstraram que o ligamento coracoclavicular medial encontra-se relaxado com a escápula em protração e tenso com a escápula em retração e segundo nossos resultados participa tanto da estabilidade vertical quanto da estabilidade horizontal da articulação acromioclavicular.

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Identificación del ligamento córacoclavicular medial o de Caldani en imágenes de resonancia magnética. Protocolo original y aplicaciones clínicas. [Identification of medial coraco-clavicular (Caldani's) ligament by magnetic resonance imaging. Original procedure and clinical applications.]

Cited by 3 publications

References 0 publications

The medial coracoclavicular ligament: anatomy, biomechanics,and clinical relevance—a research study

The medial coracoclavicular ligament: anatomy, biomechanics,and clinical relevance—a research study

Presurgical perspective and postsurgical evaluation of acromioclavicular joint instability

Avaliação dos ligamentos acromioclavicular, coracoclaviculares e coracoclavicular medial na luxação acromioclavicular

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