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Anatomical variation of co-existing bilaminar tensor of the vastus intermedius muscle and new type of sixth head of the quadriceps femoris
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Affiliations- Department of Anatomical Dissection and Donation, Medical University of Lodz, Poland
- Department of Neurosurgery, Tulane University School of Medicine, New Orleans, LA, United States
- Department of Neurology, Tulane Centre for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, United States
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, United States
- Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, United States
- Department of Anatomical Sciences, St. George’s University, St. George’s, Grenada
- Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan
- Department of Surgery, Tulane University School of Medicine, New Orleans, LA, United States
- University of Queensland, Brisbane, Australia
- Department of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of Lodz, Poland
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Abstract
Background: We present a case report of quadriceps femoris (QF) with co-existing bilaminar tensor of the vastus intermedius (TVI) muscle and new type of sixth head.
Materials and methods: Cadaveric dissection of left thigh of a 72-year-old man was performed for research and teaching purposes at the Department of Anatomical Dissection and Donation, Medical University of Lodz. The left lower limb was dissected using standard techniques according to a strictly specified protocol. Each head of the muscle was photographed and subjected to further measurement.
Results: During dissection, an unusual type of TVI muscle was observed. It consisted of two surfaces, superficial and deep. In addition, sixth head of QF muscle grew out from the vastus medialis muscle.
Conclusions: The knowledge of the existence and possible variations of additional heads of QF muscle is necessary during diagnostic process of muscle strains. Moreover, according to course of tendons that heads may take part in patella stabilisation.
Abstract
Background: We present a case report of quadriceps femoris (QF) with co-existing bilaminar tensor of the vastus intermedius (TVI) muscle and new type of sixth head.
Materials and methods: Cadaveric dissection of left thigh of a 72-year-old man was performed for research and teaching purposes at the Department of Anatomical Dissection and Donation, Medical University of Lodz. The left lower limb was dissected using standard techniques according to a strictly specified protocol. Each head of the muscle was photographed and subjected to further measurement.
Results: During dissection, an unusual type of TVI muscle was observed. It consisted of two surfaces, superficial and deep. In addition, sixth head of QF muscle grew out from the vastus medialis muscle.
Conclusions: The knowledge of the existence and possible variations of additional heads of QF muscle is necessary during diagnostic process of muscle strains. Moreover, according to course of tendons that heads may take part in patella stabilisation.
Keywords
quadriceps femoris, tensor vastus intermedius, anatomical variations, knee joint
About this articleTitle
Anatomical variation of co-existing bilaminar tensor of the vastus intermedius muscle and new type of sixth head of the quadriceps femoris
Journal
Issue
Article type
Case report
Pages
1082-1086
Published online
2021-09-28
Page views
4248
Article views/downloads
737
DOI
Pubmed
Bibliographic record
Folia Morphol 2022;81(4):1082-1086.
Keywords
quadriceps femoris
tensor vastus intermedius
anatomical variations
knee joint
Authors
K. Ruzik
L. Olewnik
K. Westrych
N. Zielinska
B. Szewczyk
R. S. Tubbs
M. Polguj
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