The Anatomy of the Articularis Genus Muscle and Its Relation to the Extensor Apparatus of the Knee

JB & JS Open Access
Karl GrobMarkus S Kuster

Abstract

The anatomy of the articularis genus muscle has prompted speculation that it elevates the suprapatellar bursa during extension of the knee joint. However, its architectural parameters indicate that this muscle is not capable of generating enough force to fulfill this function. The purpose of the present study was to investigate the anatomy of the articularis genus, with special emphasis on its relationship with the adjacent vastus intermedius and vastus medialis muscles. The articularis genus muscle was investigated in 18 human cadaveric lower limbs with use of macrodissection techniques. All components of the quadriceps muscle group were traced from origin to insertion, and their affiliations were determined. Six limbs were cut transversely in the middle third of the thigh. The modes of origin and insertion of the articularis genus, its nerve supply, and its connections with the vastus intermedius and vastus medialis were studied. The muscle bundles of the articularis genus were organized into 3 main layers: superficial, intermediate, and deep. The bundles of the superficial layer and, in 60% of the specimens, the bundles of the intermediate layer originated from both the vastus intermedius and the anterior and anterolateral s...Continue Reading

References

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Citations

Oct 4, 2019·JBJS Essential Surgical Techniques·Makoto WadaYasuhito Tanaka
Nov 21, 2020·Bone & Joint Open·Jessica CatersonMax Gibbons
Dec 6, 2021·Journal of Anatomy·Marion S KennedyStephanie J Woodley

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Methods Mentioned

BETA
dissection

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