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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Dating and authorship of the Book of Genesis

An original perspective on the dating and authorship of the Book of Genesis. This approach can reconcile all faiths, including atheists and scientists. English version of the article: https://roundligament.blogspot.com/2026/02/great-compilation-introduction.html Abstract The Book of Genesis (Bereshith) was composed in Egypt during the 17th century BCE and reached its definitive protographic form following the Minoan eruption of Thera. This study argues that the work was the result of a collaboration between an Egyptian polymath and a distinguished scribe of Asiatic descent. By analyzing ancient texts, anatomical descriptions, archaeological data, Bronze Age cultural history, and climatic markers, this article demonstrates that the book emerged from the work of a high-ranking socio-political committee within the Egyptian House of Life. We argue that the inclusion of precise anatomical data, such as the ligamentum capitis femoris, serves as a diagnostic marker of this Egypti...

18c.JoubertJ

Joubert J, painting – Jacob's struggle with God in the form of an angel (17-18th cent.). Depicting the circumstances and mechanism of the ligamentum capitis femoris (LCF) injury based on the description in the Book of Genesis: 25 And Ja cob was left alone; and there wrestled a man with him until the breaking of the day. 26 And when he saw that he could not pre vail against him, he struck against the hollow of his thigh ; and the hollow of Jacob's thigh was put out of joint, as he was wrestling with him. … 33 Therefore do the children of Israel not eat the sinew which shrank, which is upon the hollow of the thigh, unto this day; because he struck against the hollow of Jacob's thigh on the sinew that shrank. ( 1922LeeserI , Genesis (Bereshit) 32:25-26,33) More about the plot in our work: Ninth month, eleventh day ( 2024АрхиповСВ. Девятый месяц, одиннадцатый день ). Jean Joubert – Jacob's struggle with God in the form of an angel (17-18th ce...

LCF in 2026 (September)

LCF in 2026 (September ) (Quotes from articles and books published in September 2026 mentioning the ligamentum capitis femoris) Goetz, J. E., Hockman, J., & Willey, M. C. (2026). Rabbit models of hip dysplasia: a narrative review. Laboratory animal research , 42 (1), 32. [i] link.springer.com Kahana-Rojkind, A. H., Strok, M. J., Walsh, E. G., Quesada-Jimenez, R., Kuhns, B. D., & Domb, B. G. (2026). Factors Associated With Return to Sport at Minimum 10-Year Follow-up in Athletes With Borderline Hip Dysplasia Undergoing Hip Arthroscopy With Capsular Plication. Orthopaedic Journal of Sports Medicine , 14 (9), 23259671261451218. [ii] journals.sagepub.com Stanard, I., Almhanna, H., Al-Mahmodi, A. M. M., Kilroy, D., & Kumar, A. H. (2026). Comparative Analysis of Vascular Density in the Femoral Head Ligament of the Dog, Sheep, and Goat. [iii] oajr.org , researchgate.net Hirt, J., Roshardt, ...

Human Children. Retelling of Chapter 13

Short retelling of chapter 13 of the essay: Arkhipov S.V. Human Children: The Origins of Biblical Legends from a Physician's Perspective. Joensuu: Author's Edition, 2025. [In Russian] Chapter 13. PROPHETIC DREAMS After his wanderings and battles, Abraham settles in “Mamre’s oaks in Hebron.” Following these events, he experiences a divine “word in a vision” and a dream promising him lands “from Egypt’s river to the great river, Euphrates.” His family relocates to a desert along the Shur road, near the well “Beer-Lahai-Roi,” between Kadesh and Bered. In another divine appearance, Abraham is commanded to circumcise all males’ foreskins, rename Sarai as Sarah, and is told he’ll father a child at 100, despite Sarah’s barrenness at 89. That day, Abraham circumcises his son Ishmael, household males, and, at 99, himself. In Mamre’s oaks, during “daytime heat,” a mirage foretells fatherhood. The dream shifts, showing Sodom and Gomorrah’s destruction and Lot’s miraculous rescue. ...

Morphology and Histology of LCF

Version : 20240418 MORPHOLOGY OF LCF 1. Individual fibers of stroma 2. Portions of stroma 3. Bundles of stroma portions 4. Entire stroma 5. Leg (attaching part of the ligament) 6. Synovial membrane 7. Synovial fold 8. Arterial vessels 9. Venous vessels 10. Capillary bed 11. Lymphatic vessels 12. Nerves 13. Receptors 14. Adipose tissue 15. Loose connective tissue 16. Bone tissue (in the area of attachment) 17. Fibrous tissue (in the area of attachment) 18. Cartilage tissue (in the area of attachment) HISTOLOGICAL CHARACTERISTICS OF LCF ATTACHMENT SITES Bone tissue 1. Femur 2. Pelvic bone Cartilage tissue 1. Femoral head (children, edges of the fovea capitis femoris in adults) 2. Acetabular cavity (children) Fibrous tissue 1. Transverse acetabular ligament 2. Obturator membrane 3. Periosteum of the pelvic bones 4. Joint capsule Keywords: ligamentum capitis femoris, ligament of head o...

1856HenleJ

The author examines in detail the structure, shape and blood supply of the ligamentum capitis femoris (LCF). Jakob Henle notes that the LCF serves as a conduit for vessels and participates in the synthesis of synovial fluid. Its strength varies, but usually it is robust. However, according to the author, the mechanical role of the LCF lies in tensioning the capsule of the hip joint. The translation was done in collaboration with ChatGPT 3.5. Henle J. Handbuch der systematischen Anatomie des Menschen: in drei Bänden. Erster band, zweite abthelung. Handbuch der Bänderlehre des Menschen. Braunschweig: F. Vieweg und sohn, 1856. [fragments] Quote p. 1 22 Fig. 105. Frontalschnitt des Hüftgelenks, parallel den Fasern des Lig. teres (tf). o Lig. obturatorium. Rf laterale Ursprungssehne des M. rectus femoris. zo Zona orbicularis der Kapsel (s unten). 3 Fettpolster der Fossa acetabuli. Fig. 105. Frontal se...

Homo neanderthalensis

HOMO NEANDERTHALENSIS Homo neanderthalensis flourished 500-30 thousand years ago in Europe and Asia. It is assumed that its ancestor could have been Homo ergaster or Homo heidelbergensis (2005KleinR). Homo sapiens neanderthalensis «Mr. N» Neanderthal Museum in Mettmann, fragment of the original photograph; source in the wikimedia.org collection (license CC BY-SA 4.0, no changes). Neanderthal, late type, the old man from La Chapelle-aux-Saints, reconstruction by M.M. Gerasimov; exposition of the Orlov Paleontological Museum (Moscow); photo by the author. A reconstruction of the pelvis of the Neanderthal "Kebara 2" (Israel), whose remains are dated to 64-59 Kya (2021AdegboyegaMT_WeaverTD), is known. The well-preserved right pelvic bone (Fig. 1) has a large acetabulum with fossa and acetabular notch, indicating the presence of ligamentum capitis femoris (LCF). Neanderthal pelvis, right acetabulum view from the lateral side (3-D model); original image on sketchfab....

LCF in 2025 (July)

LCF in 2025 ( July ) (Quotes from articles and books published in July 2025 mentioning the ligamentum capitis femoris.) Tekcan, D., Bilgin, G., & Güven, Ş. Evaluation of Risk Factors for Developmental Dysplasia of the Hip. HAYDARPAŞA NUMUNE MEDICAL JOURNAL , 65 (2), 99-103. [i] jag.journalagent.com Domb, B. G., & Sabetian, P. W. (2025). Greater Trochanteric Pain Syndrome: Gluteal Tendinopathy, Partial Tear, Complete Tear, Iliotibial Band Syndrome, and Bursitis. In Orthopaedic Sports Medicine (pp. 1-17). Springer, Cham. [ii] link.springer.com Kuhns, B. D., Becker, N., Patel, D., Shah, P. P., & Domb, B. G. (2025). Significant Heterogeneity in Existing Literature Limits Both Indication and Outcome Comparability Between Studies Involving Periacetabular Osteotomy For Acetabular Dysplasia With or Without Arthroscopy Despite Improvement for Both: A Systematic Review. Arthroscopy . [iii] ...

Tiktaalik roseae

TIKTAALIK ROSEAE The first truly tetrapod animal (Limbed tetrapods) is recognized as the lobe-finned fish Tiktaalik roseae (clade Elpistostegalia), discovered in rocks aged about 375 Ma (2006DaeschlerEB_JenkinsJrFA; 2008ShubinN; 2017ShubinN). Discoveries in recent years have allowed us to place the taxa of early tetrapodomorphs in the following order: Tinirau, Eusthenopteron, Megalichthys, Panderichthys, Qikiqtania, Tiktaalik, Elpistostege, Parmastega, Ventastega, Acanthostega, Elginerpeton, Ymeria, Ichthyostega (2022StewartTA_ShubinNH). The closest ancestor of Tiktaalik roseae, the fragments of the skeleton of which are relatively well preserved, is Panderichthys. Reconstruction of the prehistoric fish Pandericthys Author Tyler Rhodes; original in the wikipedia.org collection (license CC BY-SA 3.0, no changes). The shape of the skeleton of the pectoral fin and shoulder girdle suggests that Panderichthys rhombolepis "walked" (2006AhlbergPE_ClackJA). At the very least...

IMAGES AND VIDEOS

IMAGES AND VIDEOS ( Drawings, diagrams, photographs, videos... ) T he Oldest Images of the LCF ( video ) The three oldest images of the ligamentum capitis femoris. 1000Jacob&Archangel. Drawing depicting the circumstances and mechanism of the LCF injury. 1510Leonardo_da_Vinci In the drawing, a uthor depicted the distal fragment of the LCF. 1639BreenberghB. Drawing depicting the circumstances and mechanism of the LCF injury. 1685BidlooG A stretched ligament is shown. 17c.OvensJ. Drawing depicting the circumstances and mechanism of the LCF injury. 17c.PatelP . Drawing depicting the circumstances and mechanism of the LCF injury. 1738LadmiralJ The first illustration and description of the LCF in an infant. 1794LoderJC Image of the hip joint, ligamentum capitis femoris (LCF) and peripheral part of the acetabular canal. 1827Pax tonJ Visualization of th e LCF through...

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