With Irony About the Author

More than a quarter of a century ago, I asked myself the question: why do penguins and people waddle?

I studied the locomotion of people and animals, movement of machines, observed in zoos and museums, studied the structure of birds and human, experimented and analyzed, developed a mathematical apparatus. For the penguins the operation was developed: circular periacetabular osteotomy of the pelvis with rotational transposition of the proximal area of attachment of the ligament of the head of femur (ligamentum capitis femoris, ligamentum teres). A similar operation can improve the gait of some people too.

In the beginning, there was a question...

Track Music: Blue Dot Sessions, Vittoro (CC BY-NC 4.0 DEED / fragment)

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LCF in 2025 (November)

LCF in 2025 ( November ) (Quotes from articles and books published in October 2025 mentioning the ligamentum capitis femoris) Awad, A., Rizk, A., ElAlfy, M., Hamed, M., Abdelghany, A. M., Mosbah, E., ... & Karrouf, G. (2025). Synergistic Effects of Hydroxyapatite Nanoparticles and Platelet Rich Fibrin on Femoral Head Avascular Necrosis Repair in a Rat Model. Journal of Biomedical Materials Research Part B: Applied Biomaterials , 113 (11), e35672. [i] onlinelibrary.wiley.com Loughzail, M. R., Aguenaou, O., Fekhaoui, M. R., Mekkaoui, J., Bassir, R. A., Boufettal, M., ... & Lamrani, M. O. (2025). Posterior Fracture–Dislocation of the Femoral Head: A Case Report and Review of the Literature. Sch J Med Case Rep , 10 , 2483-2486. [ii] saspublishers.com , saspublishers.com Vertesich, K., Noebauer-Huhmann, I. M., Schreiner, M., Schneider, E., Willegger,...

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 ] ...

1996(r)ArkhipovSV

METHOD OF PELVIS OSTEOTOMY (Способ остеотомии таза) Patent Application RU96120699A Inventor Сергей Васильевич Архипов Original Assignee Sergey Vasilyevich Arkhipov Application RU96120699/14A events 1996-10-01 Application filed by С . В . Архипов 1999-01-20 Publication of RU96120699A Claims The method of pelvic osteotomy by complete intersection of the ilium above the capsule and acetabulum, characterized in that after arthrotomy of the hip joint the hip bones additionally intersect in front and behind the acetabulum, as well as above it between the capsule and limb, with the displacement of the formed intermediate fragment laterally and osteosynthesis fragments, in addition, plastic or prosthetics of the ligament of the femoral head can be performed, and an osteograft can be fixed over the intermediate fragment. Description of the invention Description in Russian is available at the link: 1996(r) АрхиповСВ (the blog has a translation function)....

1996(d)ArkhipovSV

The endoprosthesis of the femoral head ( Эндопротез головки бедренной кости ) Patent Application RU96118782A Inventor Сергей Васильевич Архипов Original Assignee Sergey Vasilyevich Arkhipov Application RU96118782/14A events 1996-09-20 Application filed by С.В. Архипов 1998-12-27 Publication of RU96118782A Claims The endoprosthesis of the femoral head, comprising a head connected to the intraosseous rod, characterized in that the head is formed as a hollow spherical segment, is provided with a through hole, and intramedullary rod has a longitudinal bore there through and the stiffeners, and connected to lateral extramedullary plate provided with through-cone holes which set screws with conical head connected to the extramedullary medial plate, and through the die opening intraosseous rod channel omitted flexible member of dynes end connected to the extramedullary lateral plate and the other with a fastening member. Description of the invention Description in Russian is...

1190Rambam

Fragment from the book Rambam . Guide for the Perplexed (1190). The treatise is philosophical work and an explanation of the Biblical account of creation, was written in Egypt ( sefaria.org ). The author mentions a variant of the pathology ligamentum capitis femoris (LCF, גיד) in humans. See our commentary at the link: 1190Rambam [Rus]. Quote. [Heb] Part 3.48:6 «:וטעם 'גיד הנשה' כתוב» (original source: sefaria.org ). Translation Quote. [Eng] Part 3, Chapter 48.6 The reason why the sinew that shrank is prohibited is stated in the Law (Gen. xxxii.33). (trans. M. Friedländer ; original source: 1956MaimonidesM, p. 371) External links Rambam . Guide for the Perplexed. Egypt, 1190. [ sefaria.org ] Maimonides M. The Guide for the Perplexed by Moses Maimonides. Transl. M. Friedländer London: Routledge & Kegan Paul Ltd. [1904] [ sacred-texts.com ] Maimonides M. The Guide for the Perplexed by Moses Maimonides. Transl. M. Friedländer London: G. Routledge & Sons...

1679ChartierR

Fragment from the book Chartier R. (Ed). Operum Hippocratis Coi et Galeni Pergameni archiatron tomus XII (1679). Part of the treatise «Instruments of Reductions» (Mochlicus, Vectiarius) by Hippocrates in Latin and Greek with the mention of ligamentum capitis femoris (LCF). The text is prepared for machine translation using a service built into the blog from Google or your web browser. For a translation of the passage into English, see the link: 1886AdamsF . Quote pp. 536-537. HIPPOCRATIS. MOCHLICUS, SEV VECTIARIUS. Caput I. Ossa hunc in modum a natura sunt coparata. Digitorum quidem, tum ossiu, tum articulorum, simplex est junctura. In manu vero & pede, cum multa alia varie connectuntur, tu maxima sunt quae supremo loco committuntur. Calcis unum os est, quale foras prominet, quo etiam a posteriore parte tedines tendunt. Tibiae duo ossa sunt supra & infra coherentia, medio vero loco distantia. Quod exterius tendit, parvum & juxta parvum digitum paulo tenuius. Plu...

1527BenedettiA

Fragment from the book Benedetti A. Anatomice siue historia corporis humani (1527). The author explains the origin of the rare synonym of ligamentum capitis femoris (LCF) – ischion. Quote. Liber V. De femine et eius prolapsu. Cap. XXXI Sinus coxae à graecis cotylae, à nostris acetabula dicuntur, quae hos sinus complent circa quae uersurae siunt, coxendices uocatur, à graecis ischia, à quib ischiadici dicti sunt, qui coxedice laborant. Nam et neruus quo coxendix acetabulo comittitur, ischion quoqʒ dicitur. Translation [Eng] Book V. On the Hip and Its Prolapse. Chapter XXXI. The pelvic sinuses are called cups (cotylae) by the Greeks, and in these sinuses, we have an inkwell (acetabula). The region around which the movements take place is called the coxendices (hip joint), by the Greeks the sciatic (ischia), from which the term ischiadici (related to the hip) comes for those suffering from hip issues. And the sinew/nerve (neruus) which connects the hip (coxendix) to the ...

Human Children. Retelling of Chapter 15

Short retelling of chapter 15 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 15. EXODUS FROM HARAN Jacob thrives as a shepherd in Haran, amassing wealth while his father-in-law, Laban, grows poorer. Sensing Laban’s growing resentment, Jacob foresees trouble and flees with his family, livestock, and possessions, aiming for “the land of Canaan.” His caravan crosses a river—likely the Euphrates—and heads toward “Mount Gilead.” Genesis doesn’t specify the journey’s duration, but ten days later, Laban overtakes Jacob at Gilead. Here, it’s revealed Jacob labored 20 years in Haran: 14 for his wives, Leah and Rachel, and six under a later deal for livestock. At Mount Gilead, the families reconcile, sealing peace with a monument—a rock pillar encircled by stones—named “Jegar-Sahadutha,” “Galeed,” and “Mizpah.” Laban returns home, and Jacob presses on to “Mahanaim.” ...

2014ArkhipovaAS

In 2014, at the International Olympics Space for school students, Alexandra Arkhipova presented a report on the feasibility of using joints with flexible elements in walking machines. The author was recognized as the overall winner (more details: cyclowiki.org ). The report suggested: «An important area of possible application of walking robots would be remote exploration of other planets». Ten years later, professionals from NASA began to put this idea into practice: Robot dog trains to walk on Moon in Oregon trials (more details: bbc.com ). Below we present the text of the first message about walking machines in space, the ball joint of which contains a flexible element - an analogue of the ligamentum capitis femoris (LCF). Mobile biomorphic platforms with analogues of natural locomotion algorithms Arkhipova A.S. For ten years of its mission, American wheeled Mars rover vehicle 'Opportunity' covered just 40 kilometers through the Red Planet, and its twin Spirit g...

2007ArkhipovSV_ArkhipovaLN

METHOD OF ARTHROSCOPY OF HIP JOINT ( Способ артроскопии тазобедренного сустава ) Patent Application RU2007103463A Inventor Сергей Васильевич Архипов Людмила Николаевна Архипова Original Assignee Sergey Vasilyevich Arkhipov Ludmila Nikolaevna Arkhipova Application RU2007103463/14A events 2007-01-29 Application filed by Сергей Васильевич Архипов (RU), Людмила Николаевна Архипова (RU) 2007-01-29 Priority to RU2007103463/14A 2008-08-10 Publication of RU2007103463A Claims A method for arthroscopy of a hip joint by introducing an optical system and instruments into its acetabular part, characterized in that they are inserted from lateral access through one or more through channels made in the femur in the direction from its outer side to the femoral head, and during examination the acetabular part of the joint, the patient turns so that this hip joint is below the opposite. Description of the invention Description in Russian is available ...

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