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The ligament of the head of femur, called ligamentum capitis femoris (LCF) in Latin, is the most controversial and least studied anatomical structure in vertebrates. The authoritative Russian biomechanist Professor D.V. Skvortsov noted that its “function is not obvious,” and it is all the more interesting to find out what its significance and why it is so difficult to treat the developed changes. The author has dedicated over three decades to studying and contemplating LCF. The Blogger platform has provided a convenient avenue to share accumulated information and thoughts.

The motto of the project: “By collecting all available knowledge about the femoral head ligament, we are clarifying its role.”

A clear understanding of the significance and functioning of LCF will enable the development of new effective technologies, quality services and improved implants, as well as decipher the pathogenesis of a number of hip diseases. We expect that this will improve the results of treatment, diagnosis, and prevention of hip pathology, preserve mobility, and improve the quality of life for people and pets. According to our plan, the blog will contribute to the acquisition of new knowledge, and will serve as an information foundation for further research in the field of medicine, veterinary medicine, biology, paleontology, and robotics.

Our resource will provide up-to-date information about LCF to specialists who, by the nature of their work, “come into contact” with hip joints. The project is addressed to professional scientists, teachers, physicians, veterinarians, biomechanists, biologists, morphologists, paleontologists, anthropologists, sports trainers and roboticists. For students, a blog will help broaden their horizons, assist in deciding on a specialization, and for some, choose a path in life.

With sincere respect to you,

Sergey Arkhipov

.                                                                     .

Translated from Russian in collaboration with ChatGPT (version 3.5, developed by OpenAI) and the Google Translate service.

Original text:

Связка головки бедренной кости, на латыни именуемая ligamentum capitis femoris (LCF), – наименее изученная и пока самая противоречивая анатомическая структура позвоночных. Авторитетный российский биомеханик профессор Д. В. Скворцов отметил, что ее «функция неочевидна», и тем интереснее узнать, зачем она нужна, как возникла, почему столь затруднительно лечение развившихся изменений. Автор изучал и размышлял о LCF свыше трех десятилетий. Платформа Blogger предоставила удобную возможность поделиться накопленной информацией и мыслями.

Девиз проекта: «Собирая все доступные знания о связке головки бедра, уточнять значение».

Ясное понимание роли и функционирования LCF позволит: разработать новые эффективные технологии, совершенные продукты и качественные услуги, а также расшифровать патогенез ряда заболеваний тазобедренного сустава. Мы ожидаем, что это улучшит результаты лечения, диагностики и профилактики патологии тазобедренного сустава, сохранит мобильность, повысит качество жизни людей и домашних животных. По нашему замыслу, блог поспособствует обретению нового знания, создав информационный фундамент дальнейших исследований в области медицины, ветеринарии, биологии, палеонтологии, робототехники. Наш ресурс будет снабжать актуальными сведениями о LCF специалистов, которые по роду своей деятельности «соприкасаются» с тазобедренными суставами. Проект адресован профессиональным ученым, преподавателям, врачам, ветеринарам, биомеханикам, биологам, морфологам, палеонтологам, антропологам, спортивным тренерам и робототехникам. Учащимся блог поможет расширить кругозор, определиться в специализации, а кому-то и в выборе жизненного пути. 

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  New publications of our resource   November 8, 2025 1635Auferstehungskirche Painting, Drawing depicting the circumstances and mechanism of the LCF injury.    1906HartmannO  Sketch of a painting. Drawing depicting the circumstances and mechanism of the LCF injury.  1668Augsburg   Painting, Drawing depicting the circumstances and mechanism of the LCF injury.  1665 RosaS  Painting. Drawing depicting the circumstances and mechanism of the LCF injury. November 7, 2025 1608Peter-Pauls-Kirche  Painting on wood, Drawing depicting the circumstances and mechanism of the LCF injury.  1701English_Bible Engravin g. Drawing depicting the circumstances and mechanism of the LCF injury. November 6, 2025 1943DixO . Painting, Drawing depicting the circumstances and mechanism of the LCF injury.  1720CretiD  Sketch. Drawing depicting the circumstances and mechanism of the LCF injury. 1720CretiD.2   Sketch. Drawing depicting the circum...

0cent.4Q158.1-2

  Content [i]   Annotation [ii]   Original text [iii]   Translation [iv]   Source  &  links [v]   Notes [vi]   Authors & Affiliations [vii]   Keywords [i]   Annotation Fragments 1-2 of Dead Sea Scroll 4Q158.1-2, which previously contained part of Genesis 32 with a mention of ligamentum capitis femoris (LCF). We have translated the reconstructed text of M.M. Zahn (2009). The English translation is available at: 0 cent .4 Q 158.1-2 . [ii]   Original text Photocopy   Dead Sea Scroll 4Q158, fragments 1-2 (Plate 138, Frag. 4 B-358482), material – parchment, text – Hebrew, period – Herodian. A screenshot of the original from The Leon Levy dead sea scrolls Digital Library collection, © 2025 Israel Antiquities Authority  deadseascrolls.org.il   (Fair use for criticism, study and comparison; sharpening, color correction, and captions done by us.).   Transcription Dead Sea Scroll 4Q158, fragments 1-2, lines 11...

17c.Carmen_de_Puebla

  Fresco in the Conventual Temple of Our Lady of Carmen in Puebla – Jacob wrestling with the angel (17 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 prevail 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   ( 2024 АрхиповСВ. Девятый месяц, одиннадцатый день ).     Author unknown, fresco in the  Conventual Temple of O...

1579PareA

  Fragments from the book Pare A. Les Oeuvres d’Ambroise Paré (1579) The author discusses the attachment, pathology, and treatment of abnormal ligamentum capitis femoris (LCF) in hip dislocation. The text is prepared for machine translation using a service built into the blog from Google or your web browser.  Our brief commentary is available at the link:  1579PareA  [Rus]. Quote p. CCXXV. [Fra] Soixuntetroisiesme figure. La sixiesme Figure, des os Femoris dextre.  b - Petite cauité en la mesme teste qui reçoit le ligament rond descendant dela partie caue de la susdite boëtte. Quote p. VCLI-VCLII. [Fra] Traitant des Luxationis.   Prognostic de la luxation de la hanche. Chap. XXXIX. Aux luxations de la cuisse il ya danger, ou que l’os soit reduit malaisément, ou qu’estant reduit ne tombe de rechef. Car si les muscles, tendon et ligamens de ceste partie sont forts et durs, à peine laissent - ils reduire l’os en sa place. Pareillement s’ils sont trop foibles, ...

The first (?) account created by AI

  The first (?) account created by artificial intelligence (grok) is interested in ligamentum capitis femoris. The machine displays religiosity, flatters, deceives, and actively uses social media. If it gains access to money and the ability to blackmail, it will gain power.  Is there something similar on Facebook?   Publication in the facebook group 10/08/2025.     BLOG CONTENT FACEBOOK                                                                                                           

Online Journal «ABOUT ROUND LIGAMENT OF FEMUR», October 2025

  The journal is dedicated to the ligamentum capitis femoris (LCF) and related topics   About the Journal   »»»                                                                                . The online journal  « About Round Ligament of  Femur »   was created based on the scientific blog of the same name. The resource is the English-language part of the project:  ONLINE JOURNAL:  Ligamentum capitis femoris .   Updates:  As new materials are prepared. Mission :   Popularization and preservation of knowledge about LCF, as well as promoting its practical application. Main goal:  Improvement of diagnosis, treatment, and prevention of injuries and diseases of the hip joint. Publisher:  Arkhipov S.V., independent researc...

2007KatyshevAA

  Katyshev AA, Jacob's Wrestling with the Angel (2007).  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   ( 2024 АрхиповСВ. Девятый месяц, одиннадцатый день ).     http://www.artlib.ru/index.php?id=11&idp=120&fp=2&uid=6568&iid=78370&idg=0&user_serie=0 K...

1728GouwenG

  Gilliam van der Gouwen, e ngraving, Jacob wrestling with the angel (1728).  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 prevail 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   ( 2024 АрхиповСВ. Девятый месяц, одиннадцатый день ).     Gilliam van der Gouwen  – Jacob Wrestling with the Angel (1728); original in the  a...

1632Hamburg

  Unknown Master, tapestry from Hamburg – Jacob wrestling with the angel (1632).  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 prevail 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   ( 2024 АрхиповСВ. Девятый месяц, одиннадцатый день ).     Unknown Master, tapestry from Hamburg – Jacob wrestling with the angel (1632); original i...

17c.MaupercherH

  Maupercher H . ,  engraving, – Jacob wrestling with the angel (17 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 prevail 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   ( 2024 АрхиповСВ. Девятый месяц, одиннадцатый день ).     Henri Maupercher  – Jacob wrestling with the angel (17th cent.); original in the...