open access

Vol 73, No 3 (2014)
ORIGINAL ARTICLES
Published online: 2014-09-05
Submitted: 2013-11-23
Accepted: 2014-01-11
Get Citation

Morphological characteristics of the deep layer of articularis genus muscle

E. Sakuma, Y. Sasaki, N. Yamada, I. Wada, T. Soji
DOI: 10.5603/FM.2014.0048
·
Folia Morphol 2014;73(3):309-313.

open access

Vol 73, No 3 (2014)
ORIGINAL ARTICLES
Published online: 2014-09-05
Submitted: 2013-11-23
Accepted: 2014-01-11

Abstract

Background: The articularis genus muscle pulls the suprapatellar pouch upwards when the knee joint is extended, preventing mechanical impingement of the joint capsule which theoretically could cause anterior knee pain. However, few anatomical studies have addressed this muscle. Here we present the precise morphology of articularis genus.

Materials and methods: A total of 22 (13 male and 9 female) adult cadavers with no pathological conditions in the knee joints were examined during educational dissection at Nagoya City University Medical School in 2012. After exclusion of 4 joints due to their flexion contracture, 40 knee joints (18 right and 22 left) were analysed. We performed statistical analysis on anatomical laterality and the difference of sizes among lateral, medial and central branches and studied the correlation of the length and area of the articularis genus muscle to the lengthand cross-section area of the femur.

Results and Conclusions: The average number of branches of the deep layer of the articularis genus muscle was 2.7 ± 0.5, the mean length of all brancheswas 5.4 ± 1.3 cm and the mean area of all branches was 5.5 ± 2.6 cm2. There was no significant correlation between the length and area of the articularis genus muscle to the length and cross-section area of the femur. There was no significant laterality in central, medial and lateral branches; however we found that the medial branch was statistically longer and larger than the lateral branchon either knee. This could be contributing to prevention of lateral dislocation of the patella.

Abstract

Background: The articularis genus muscle pulls the suprapatellar pouch upwards when the knee joint is extended, preventing mechanical impingement of the joint capsule which theoretically could cause anterior knee pain. However, few anatomical studies have addressed this muscle. Here we present the precise morphology of articularis genus.

Materials and methods: A total of 22 (13 male and 9 female) adult cadavers with no pathological conditions in the knee joints were examined during educational dissection at Nagoya City University Medical School in 2012. After exclusion of 4 joints due to their flexion contracture, 40 knee joints (18 right and 22 left) were analysed. We performed statistical analysis on anatomical laterality and the difference of sizes among lateral, medial and central branches and studied the correlation of the length and area of the articularis genus muscle to the lengthand cross-section area of the femur.

Results and Conclusions: The average number of branches of the deep layer of the articularis genus muscle was 2.7 ± 0.5, the mean length of all brancheswas 5.4 ± 1.3 cm and the mean area of all branches was 5.5 ± 2.6 cm2. There was no significant correlation between the length and area of the articularis genus muscle to the length and cross-section area of the femur. There was no significant laterality in central, medial and lateral branches; however we found that the medial branch was statistically longer and larger than the lateral branchon either knee. This could be contributing to prevention of lateral dislocation of the patella.

Get Citation

Keywords

muscle, anatomy, cadaver, variation, knee

About this article
Title

Morphological characteristics of the deep layer of articularis genus muscle

Journal

Folia Morphologica

Issue

Vol 73, No 3 (2014)

Pages

309-313

Published online

2014-09-05

DOI

10.5603/FM.2014.0048

Bibliographic record

Folia Morphol 2014;73(3):309-313.

Keywords

muscle
anatomy
cadaver
variation
knee

Authors

E. Sakuma
Y. Sasaki
N. Yamada
I. Wada
T. Soji

Important: This website uses cookies. More >>

The cookies allow us to identify your computer and find out details about your last visit. They remembering whether you've visited the site before, so that you remain logged in - or to help us work out how many new website visitors we get each month. Most internet browsers accept cookies automatically, but you can change the settings of your browser to erase cookies or prevent automatic acceptance if you prefer.

By  "Via Medica sp. z o.o." sp.k., Świętokrzyska 73, 80–180 Gdańsk, Poland

tel.:+48 58 320 94 94, faks:+48 58 320 94 60, e-mail:  viamedica@viamedica.pl