ABOUT ROUND LIGAMENT OF FEMUR (ligament of head of femur)

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BIOMECHANICS AND MORPHOMECHANICS

BIOMECHANICS AND MORPHOMECHANICS

(On the relationship between the mechanics and morphology of the hip joint...)

1586PiccolominiA One of the first discussions of the biomechanics of the LCF with a description of its shape, mechanical properties and attachment.
1728WaltherAF The selected excerpt discusses the anatomy, mechanical properties and function of the LCF.
1836WeberW_WeberE Fragments from the book that laid the foundation of biomechanics of the hip joint considering the LCF.
1836-1840PartridgeR The author compared the LCF, in its function to a leathern straps by which the body of a carriage is suspended on springs.
1856MeyerGH The author of the modern theory of biomechanics of the hip joint discusses the significant role of the LCF during walking and maintaining an upright posture.
1857TurnerW The fragment of the «Human Anatomy and Physiology» narrates the involvement of the LCF in distributing loads across the femoral head.
1858HumphryGM In the presented excerpts, the author extensively discusses the anatomy, topography, structure, and function of the LCF.
1873MeyerGH The author, based on anatomical observations, develops his view on the role of the LCF in limiting movements in the hip joint.
1874SavoryWS In the article, the Sir W.S. Savory raises questions about the function of the LCF and notes that it «...is especially called into action whenever the weight of the body is thrown upon one leg».
1969DeeR The author discusses the nervous system of the LCF and its role in hip biomechanics.
2024GillHS To clarify the role of LCF, the author recommends a combination of experimental studies with computer modeling.
2025ChenJH_AcklandD The authors experimentally demonstrated the role of the LCF in unloading the upper sector of the acetabulum and the femoral head.
2025ZhangY_MartinRL Article: A finite element analysis model to support ligamentum teres function.
New Biomechanics in Illustrations The New Biomechanics of the Hip Joint: Pictorial Essay.
Reasoning about Morphomechanics Chapter in a book: Archipov-Baltic S.V. Reasoning about Morphomechanics. The norm – Kaliningrad, 2004. [In Russian] / Original text: Архипов-Балтийский СВ. Рассуждение о морфомеханике. Норма. Калининград, 2004.
LCF Mechanics A new scientific direction «Ligamentum Capitis Femoris Mechanics» has been formed.
Postulates of LCF mechanics. List.
Arkhipov SV. Critical mass of consensus: Opinions on the importance of ligamentum capitis femoris (XX-XXI century), 2025.

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BIOMECHANICS AND MORPHOMECHANICS

Perthes disease. Pathogenesis

An original view on the pathogenesis of Perthes' disease (femoral head osteochondropathy, Legg-Calvé-Perthes disease). By the onset of Perthes disease, the hip joint is generally formed, and the femoral head and acetabulum represent bone structures. From our perspective, the initiating factor is trauma, specifically, damage to the ligamentum capitis femoris (LCF). This can be its rupture (most commonly), detachment from its attachment point, or irreversible plastic elongation. In other words, the amount of mechanical energy acting on the LCF, at a certain moment, exceeds the amount that it can absorb. Another option is possible when individual LCF fibers are damaged. Bioeffective stresses arise and increase in it, inducing biological processes that transform the LCF ( for more details, see the Law of Bioinduction ) . As a result, it is either permanently damaged or significantly lengthened. Due to damage or uncompensated lengthening of the LCF, the statics and dynamics of...

Congenital Hip Dislocation. Pathogenesis

An original view on the pathogenesis of congenital hip dysplasia, congenital dislocation and subluxation of the hip. One example of the importance of ligamentum capitis femoris (LCF) and the influence of a mechanical factor on living systems is a group of diseases of the hip joint such as congenital hip dysplasia, congenital subluxation and congenital hip dislocation. The last of these pathological conditions is an extreme degree of severity of the previous two. Common to these pathological conditions is the presence of connective tissue dysplasia syndrome of varying severity. It is based on a decrease in the strength and elasticity of connective tissue structures. The consequence of this is that a standard load, for example, on ligaments causes their plastic deformation: thinning, elongation, and in some cases, rupture. This occurs due to both mechanical and biological processes (for more details, see the Law of Bioinduction ). If, in connective tissue dysplasia syndr...

Aseptic Necrosis. Pathogenesis

An original view on the pathogenesis of aseptic (avascular) necrosis of the femoral head. According to our view, the pathogenesis of aseptic (avascular) necrosis of the femoral head is based on mechanical damage to the ligamentum capitis femoris (LCF) or its dysfunction. Due to excessive stress on the LCF, it can rupture completely or partially, or tear off with or without a bone fragment. The most common mechanism of injury is forced adduction or rotation of the hip in the horizontal plane (pronation-supination). Damage can occur immediately or gradually, with prolonged existence of bioeffective stresses in the LCF. Partial damage to the LCF with elongation and dysfunction is not excluded at the initial stage. We consider the commonly held opinion about the vascular genesis of the disease to be incorrect. Due to the violation of the integrity of the LCF, the hip joint in the single-support period of the step is not converted into a lever of the second kind. Accordingly, in a...

Hip Osteoarthritis. Pathogenesis

An original view on the pathogenesis of osteoarthritis of the hip joint. Coxarthrosis is a disease that can develop either independently or against the background of other pathological conditions: congenital hip dislocation, Perthes' disease, aseptic necrosis of the femoral head, and some others. From our point of view, the basis of its pathogenesis, as a rule, is the pathology of ligamentum capitis femoris (LCF). This may involve its complete or partial damage, changes in size, mechanical properties, and the localization of attachment areas. The pathogenesis of coxarthrosis is a clear illustration of the Law of Bioinduction that we have established. LCF dysfunction results in disruption of normal hip mechanics. In the single-support period of the step and the single-support orthostatic position, it begins to function not as a lever of the second kind, but as a lever of the first kind. Accordingly, only the upper sectors of the femoral head and acetabulum are constantly loaded; ...

Reasoning about Morphomechanics. Chapter

Archipov-Baltic S.V. Reasoning about Morphomechanics. The norm – Kaliningrad, 2004. - 820 p; the Manuscript, version 1.4. The bibliography - 885 names, contains 15 tables, 340 illustrations. The conclusion (Chapter of the book, p. 776-780) Concluding the first reasoning about morphomechanics, and summing up said above, it is necessary to stop once again on the main moments of our narration. Living organisms on the Earth - living systems, both unicellular, and multicellular, are constantly pressed for mechanical forces. It can be a direct influence upon a living system of a material body, or influence of its gravitational field. We indicated the totality of all mechanical influences on a living system as a mechanical agent of the environment. The mechanical agent is the same factor of the environment as temperature, humidity, illuminance, a radioactive background, a chemical composition of ambient space. It is significant, as well as other factors of an environ...