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Ahead of Print
Original article
Published online: 2020-10-15
Submitted: 2020-05-24
Accepted: 2020-09-28
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Menisco-fibular ligament — an overview: cadaveric dissection, clinical and MRI diagnosis, arthroscopic visualization and treatment

U. E. Zdanowicz, B. Ciszkowska-Łysoń, P. Krajewski, B. Ciszek, S. F. Badylak
DOI: 10.5603/FM.a2020.0127
·
Pubmed: 33084006

open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2020-10-15
Submitted: 2020-05-24
Accepted: 2020-09-28

Abstract

Background: Injury to the menisco-fibular ligament is not commonly recognized. The anatomy of the lateral meniscus is complex and structure-function relationships are only partly understood. The purpose of the present study was to evaluate the menisco-fibular ligament, an anatomic structure rarely discussed that stabilizes the lateral meniscus at the level of the hiatus popliteus and may have a crucial role in pathology of lateral meniscus injury.

Materials and methods: The menisco-fibular ligament was dissected from its attachment at the lateral meniscus to its insertion on fibular head in 12 human normal cadaver knees. The dimensions were determined and its anatomic position visualized throughout a 90° range of motion. Findings were documented on digital photographs and on video. Results were compared against the MRI appearance of the injured menisco-fibular ligament in twenty patients. Concomitant knee injuries in those patients were also analyzed to determine the most frequent pattern of injuries.

Results: The normal menisco-fibular ligament showed an inverted trapezoid-shape with a mean width proximally of 13 mm, mean width distally of 8,5 mm and a mean length of 18,4 mm. MRI visualization of the ligament was possible even in regular sequences, however also additional radial plane sequencs were used. Arthroscopic visualization and manipulation was optimal when the camera was inserted into the postero-lateral gutter with full knee extension.

Conclusions: The menisco-fibular ligament stabilizes the postero-lateral knee in concert with the menisco-femoral ligaments. Injury to the menisco-fibular ligament can be a cause of chronic postero-lateral pain syndrome with associated instability. Further anatomical and biomechanical studies are needed in order to fully evaluate its importance.

Abstract

Background: Injury to the menisco-fibular ligament is not commonly recognized. The anatomy of the lateral meniscus is complex and structure-function relationships are only partly understood. The purpose of the present study was to evaluate the menisco-fibular ligament, an anatomic structure rarely discussed that stabilizes the lateral meniscus at the level of the hiatus popliteus and may have a crucial role in pathology of lateral meniscus injury.

Materials and methods: The menisco-fibular ligament was dissected from its attachment at the lateral meniscus to its insertion on fibular head in 12 human normal cadaver knees. The dimensions were determined and its anatomic position visualized throughout a 90° range of motion. Findings were documented on digital photographs and on video. Results were compared against the MRI appearance of the injured menisco-fibular ligament in twenty patients. Concomitant knee injuries in those patients were also analyzed to determine the most frequent pattern of injuries.

Results: The normal menisco-fibular ligament showed an inverted trapezoid-shape with a mean width proximally of 13 mm, mean width distally of 8,5 mm and a mean length of 18,4 mm. MRI visualization of the ligament was possible even in regular sequences, however also additional radial plane sequencs were used. Arthroscopic visualization and manipulation was optimal when the camera was inserted into the postero-lateral gutter with full knee extension.

Conclusions: The menisco-fibular ligament stabilizes the postero-lateral knee in concert with the menisco-femoral ligaments. Injury to the menisco-fibular ligament can be a cause of chronic postero-lateral pain syndrome with associated instability. Further anatomical and biomechanical studies are needed in order to fully evaluate its importance.

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Keywords

menisco-fibular ligament, lateral meniscus, anatomy, knee, arthroscopy, postero-lateral corner

About this article
Title

Menisco-fibular ligament — an overview: cadaveric dissection, clinical and MRI diagnosis, arthroscopic visualization and treatment

Journal

Folia Morphologica

Issue

Ahead of Print

Article type

Original article

Published online

2020-10-15

DOI

10.5603/FM.a2020.0127

Pubmed

33084006

Keywords

menisco-fibular ligament
lateral meniscus
anatomy
knee
arthroscopy
postero-lateral corner

Authors

U. E. Zdanowicz
B. Ciszkowska-Łysoń
P. Krajewski
B. Ciszek
S. F. Badylak

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