Planar models of the hip joint

Planar models of the hip joint: The history of creation and experiments.

For a description of experiments on a planar model of the hip joint with ligamentum capitis femoris (+ 25 illustrations), see: https://kruglayasvyazka.blogspot.com/2024/05/blog-post_26.html

NB! In experiments on planar models, F. Pauwels did not take into account ligaments. Therefore, his theory is not correct as applied to the norm.

Publication in the facebook group 03/21/2025.

#ligamentum_teres #ligamentum_capitis_femoris #hip #biomechanics

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2025ArkhipovSV. Why Acetabular Labrum Repair May Be Ineffective

Original in Russian is available at the link: С.В. Архипова «Почему восстановление вертлужной губы может быть неэффективно?» (06.04.2025) , below is a machine translation edited by a non-native speaker (version dated 06/04/2025). Thematic Internet Journal About round ligament of femur April 2025 WHY ACETABULAR LABRUM REPAIR MAY BE INEFFECTIVE?: A NOTE ON THE MYSTERIOUS "DARK MATTER" OF THE HIP JOINT S.V. Arkhipov, Independent Researcher, Joensuu, Finland Abstract Acetabular labrum repair and reconstruction do not prevent hip joint instability during gait and the development of osteoarthritis in the case of an elongated ligamentum capitis femoris. This conclusion is based on mathematical calculations and analysis of experiments conducted on a mechanical hip joint model. Keywords : arthroscopy, hip joint, acetabular labrum, ligamentum capitis femoris, ligamentum teres, ligament of head of femur , reconstruction, repair Introduction Nearly 80% of primary hip ar...

2025ArkhipovSV. Human Children

The monograph Arkhipov S.V. Human Children: The Origins of Biblical Legends from a Physician's Perspective. An essay with references to interactive materials. 2nd revised and expanded edition. Joensuu: Author's Edition, 2025. [In Russian]. The monograph dates the writing of the Book of Genesis and the events depicted in it, as well as refutes the authorship of Moses. I offer mutually beneficial cooperation (50/50) in literary translation into English or native language. Proofreading of machine translation and cooperation in editing are expected. Requirements for co-author: 1. Native speaker 2. Experience as a writer. E-mail: archipovsv(&)gmail.com Annotation The first version of the Book of Genesis appeared in Ancient Egypt approximately 3,600 years ago, during the Hyksos period. The work was conceived as a fairy tale epic. An unknown physician-encyclopedist, who is also presumed to have authored the Edwin Smith Papyrus, played a role in its composition...

ChatGPT. Scientific Review On the Article: “Why Acetabular Labrum Repair May Be Ineffective”

At our request, the language model ChatGPT, prepared to assist in the analysis and editing of texts by OpenAI, 2025, wrote a review of the article by Arkhipov SV. Why Acetabular Labrum Repair May Be Ineffective: A Note on the Mysterious ‘Dark Matter’ in the Hip Joint ([Ru] Архипов СВ . Почему восстановление вертлужной губы может быть неэффективно?: Заметка о таинственной «темной материи» в тазобедренном суставе. 06.04.2025 ). The original article was reviewed and edited based on the recommendations of Grok , an artificial intelligence developed by xAI. In accordance with the comments of both reviewers, the article was corrected and published. Below is the original text of the review by ChatGPT: Scientific Review and Critical Commentary On the article: “Why Acetabular Labrum Repair May Be Ineffective: A Note on the Mysterious ‘Dark Matter’ in the Hip Joint” Author: S.V. Arkhipov, Independent Researcher, Joensuu, Finland I. Scientific...

Grok. Review of the Article by S.V. Arkhipov "Why Restoration of the Acetabular Labrum May Be Ineffective?".

At our request, Grok, artificial intelligence developed by xAI, wrote a review of the article by Arkhipov SV. Why Acetabular Labrum Repair May Be Ineffective: A Note on the Mysterious ‘Dark Matter’ in the Hip Joint ([Ru] Архипов СВ . Почему восстановление вертлужной губы может быть неэффективно?: Заметка о таинственной «темной материи» в тазобедренном суставе. 06.04.2025 ). In accordance with the comments, the article was revised and sent for re-review to the ChatGPT language model prepared to assist in the analysis and editing of texts (OpenAI, 2025). Below is the original text of the review by Grok: Review of the Article by S.V. Arkhipov "Why Restoration of the Acetabular Labrum May Be Ineffective?: A Note on the Mysterious 'Dark Matter' of the Hip Joint". This review focuses on the analysis of argumentation, as requested. The author asserts that restoration of the acetabular labrum fails to prevent hip joint instability and osteoarthritis when the ligame...

LCF in 2025 (March)

LCF in 2025 ( March ): Quotes from articles and books published in March 2025 mentioning the ligamentum capitis femoris. Matsushita, Y., Sugiyama, H., Hayama, T., Sato, R., & Saito, M. (2025). Long-term Outcome of Pediatric Arthroscopic Surgery for Avulsion Fracture of the Ligamentum Teres: A Case Report. JBJS Case Connector , 15 (1), e25. [i] journals.lww.com Arkhipov, S. V. (2025). Inferior Portal for Hip Arthroscopy: A Pilot Experimental Study. Pt. 2. Inferior Portal Prototypes. About Round Ligament of Femur . February 26, 2025. [ii] researchgate . net Pfirrmann, C. W., & Kim, Y. J. (2025). Advanced Imaging. In Surgical Hip Dislocation: A Comprehensive Approach to Modern Hip Surgery (pp. 29-42). Cham: Springer Nature Switzerland. [iii] link.springer.com Singh, R., & Yadav, N. (2025). Morphometry and Morphology of the Fovea Capitis of the Femoral Head an...

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T he ligament of the head of femur or ligamentum capitis femoris (LCF) is the key to a graceful gait and understanding the causes of hip joint diseases. We present promising scientific knowledge necessary for preserving health, to create new implants and techniques of treating degenerative pathology and damage of the hip joint. Project objective : preserving a normal gait and quality of life, helping to study of hip joint biomechanics, developing effective treatments for its diseases and injuries. In translating to English, the author is assisted by ChatGPT (version 3.5) and the Google Translate service . We're sorry for any flaws in the syntax. The meaning makes up for the imperfections! TABLES OF CONTENTS ANCIENT MENTIONS (Early literary evidence and early authors... ) 976-1115Theophilus Protospatharius The author writes about the normal anatomy of the LCF and its connective function. 10...

2000-1600bcBM29663

Fragment of the text of clay tablet BM 29663 (Mesopotamia, 2000-1600 BC). In the list of body parts of a sheep, the author indicates ligamentum capitis femoris (LCF). See our commentary at the link: 2000-1600bcBM29663 [Rus]. Quote [Akk] Clay tablet BM 29663 (original source: photo - British Museum britishmuseum.org , text - 2018CohenY , p. 134). Translation [Eng] List of Sheep Body Parts ( с lay tablet BM 29663, obverse) 10. ni-im-šu → nimšu, “sciatic nerve”, “sinew” . ( original source: 2018CohenY , p. 135). ( original source: British Museum britishmuseum.org , CC BY-NC-SA 4.0) External links Clay tablet; museum number 29663; registration number 1898,1115.49. Middle East, Old Babylonian period (2000-1600 BC). [ britishmuseum.org , cdli.mpiwg-berlin.mpg.de ] Sigrist M, Zadok R, Walker C. Catalogue of the Babylonian tablets in the British Museum. Catalogue of the Babylonian tablets in the British Museum. London: British Museum Press, 2006. ...

2025ArkhipovSV. An Artistic Etude

The English translation of the artistic etude by Sergei Arkhipov, titled “ Истоки библейских преданий в обозрении врача ”. The etude that mentions LCF is based on the Prologue and Epilogue of the essay: Архипов СВ. Дети человеческие: истоки библейских преданий в обозрении врача. Йоэнсуу: Издание Автора, 2025 . [ Arkhipov SV. Human Children: The Origins of Biblical Legends from a Physician's Perspective ]. We hope that the machine translation has preserved the meaning and poetic tone of the original Russian text. Thematic Internet Journal About round ligament of femur April 2025 The Origins of Biblical Legends from a Physician’s Perspective Sergey Arkhipov Scene Nurmes is a quiet town, anchored among the waves of emerald hills of Northern Karelia. At night, the windows and lanterns of the settlement are reflected in the adjacent lakes, like the lights of an impressive ship in the mirror of the roadstead. During the day, along the long street-deck, past the birch masts, wis...

1758MonroA

Fragments from the book Monro A. The Anatomy of the Human Bones and Nerves… Sixth Edition (1758). The author writes about the attachment, role and strength of the ligamentum capitis femoris (LCF). Quote p. 273 The upper End of the Thigh-bone is not continued in a streight Line with the Body of it, but is set off obliquely inwards and upwards, whereby the Distance here between these two Bones at their upper Part is considerably increased. – This End is formed into a large smooth round Head [Vertebrum], which is the greater Portion of a Sphere unequally divided. Towards its lower internal Part a round rough spongy Pit is observable, where the strong Ligament, commonly, but unjustly, called the round one, is fixed, to be extended from thence to the lower internal Part of the receiving Cavity, where it is considerably broader than near to the Head of the Thigh-bone. … Quote p. 277. The Thigh-bone is articulated above with the Acetabulum of the Ossa innominata, which affords its round...

1836-1840PartridgeR

«Prof. Partridge in his lectures on anatomy at King's College was accustomed to compare the Ligamentum Teres, in its function, to the leathern straps by which the body of a carriage is suspended on springs » ( 1874SavoryWS ). Perhaps Nikolai Pirogov listened to these lectures ( 1859PirogoffN ). The analogy that Richard Partridge used could have arisen after reading the monograph Bell J. The Principles of Surgery (1801) . In it, the author depicted a cart and a pelvis resting on the head of one and two femurs. However, there is no mention of ligamentum capitis femoris (LCF) in the chart descriptions. References Savory WS. On the use of the ligamentum teres of the hip joint. J Anat Physiol. 1874;8(2)291-6. [ ncbi.nlm.nih.gov , archive.org ] Pirogoff N. Anatome topographica sectionibus per corpus humanum congelatum triplici directione ductus illustrate. Petropoli: Typis Jacobi Trey, 1859. [ books.google , archive.org ] ...

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