BLOG MOTTO

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

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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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1605BauhinC

Fragment from the book Bauhin C. Theatrum anatomicum (1605). The author writes about the attachment, function, possible elongation and damage of the ligamentum capitis femoris (LCF). Lameness after dislocation is mentioned and its cause is explained. In the margins of the page are references to the works of other authors Vesalius , Laurens , Arch ang ( Archangelo Piccolomini ??? ) . Quote p. 1244. Liber IV. DE LIGAMENTIS OSSIS ILII & sacri et que in toto pede habentur. CAP. XXXIX. Femur, coxendicis articulo duplici ligamento nectitur; altero communi membrane, articulum orbiculatim ambit, quod Græci [ischos], totius articuli nomine vocarunt; quod cætera, articulos ambientia crassitie, duritie, & robore su perat, cum articulus hic corpus totum sustinere & motus validos perferre debuerit. Hoc articulo & femoris ceruici accumbit & solum radici magni processus orbiculatim adnascitur, quo motus capitis ipsius femoris non impediantur. Alterum ipsius ligamentum teres...

LCF in 2026 (July)

LCF in 2026 (July ) (Quotes from articles and books published in July 2026 mentioning the ligamentum capitis femoris) Çetik, R. M., Bakırcıoğlu, S., Büyükdoğan, K., Çağlar, Ö., Atay, Ö. A., & Atilla, B. (2026). Cam-type femoro-acetabular impingement: Mid-term functional results and joint awareness of arthroscopic, mini-open and surgical dislocation techniques. Acta Medica , 57 (2), 123-131. [i] actamedica.org Khan, M. Y., Khan, R., Shaikh, H., Persaud, N. A., Rama, S., & Khan, Y. (2026). Evolution of Hip Arthroscopy in Modern Orthopedic Practice. Cureus , 18 (6). [ii] cureus.com Sanders, W. J., Ji, X. P., & Jablonski, N. G. (2026). New remains of Stegodon zhaotongensis (Proboscidea, Stegodontidae) from the Late Miocene site of Shuitangba, Yunnan Province, China. Journal of Mammalian Evolution , 33 (3), 33. [iii] link.springer.com Randelli, F. (2026...

Great Compilation. Chapter 41

English version of the article: Архипов СВ. Книга Берешит как великая компиляция текстов и смыслов Второго переходного периода Египта: пилотная культурологическая, медицинская, археологическая и текстологическая экспертиза преданий против традиционной атрибуции. Введение. О круглой связке бедра . 14.02.2026 . The text in Russian is available at the following link: 2026АрхиповСВ . The Book of Genesis as a Great Compilation of Texts and Meanings from the Second Intermediate Period of Egypt: A Pilot Culturological, Medical, Archaeological, and Textological Examination of the Legends versus Traditional Attribution. Chapter 41 By Sergey V. Arkhipov, MD, PhD CONTENT [i] Abstract [ii] Book of Genesis. Chapter 41 Analysis [iii] Notes to Chapter 41 [iv] AI Agent's Conclusion [v] Content [vi] External links [vii] Application [i] Abstract The Book of Genesis (Bereshith) was compo...

911-612bcK2453

Fragment of the text of clay tablet K 2453 (Nineveh; ca. 911-612 BC; maybe 5000-4000 BC). A recommendation for a ritual or magical act may mention the sheep's ligamentum capitis femoris (LCF). See our commentary at the link: 911-612bcK2453 [Rus]. Quote [Akk] Clay tablet К 2453 (original source: photo by Ashurbanipal Library Project cdli.mpiwg-berlin.mpg.de , text: 1906 ThompsonRC , plate. 12). Translation [Eng] Clay tablet К 2453 (reverse ) 42. (if a man’s leg is affected) SA ÚR UDU.NITÁ ša GÙB teleqqe you take the sinew from the left thigh of a sheep ( original source: 1992RothMT , p. 312). ( original source: Cuneiform Digital Library Initiative cdli.mpiwg-berlin.mpg.de ) External links Clay tablet; CT 23, pl. 05-14, K 02453 + (P365736). Nineveh (mod. Kuyunjik), Neo-Assyrian period (ca. 911-612 BC). [ cdli.mpiwg-berlin.mpg.de , ebl.lmu.de ] Thompson RC. Cuneiform Texts. Cuneiform Texts from Babylonian Tablets in the British Museum. P...

1990HarveyB

Harvey B, sculpture, Jacob wrestling with the angel (ca. 1990). 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 ). Bessie Harvey – tree root sculpture Jacob Wres tling with the Angel (ca. 1990); original in the high.org collection (Fair...

Human LCF intersection

HUMAN LCF INTERSECTION In the south of China, in the Guangxi Zhuang Autonomous Region, the archaeological Neolithic site of Dingsishan was investigated. Burials of 355 people were found in this place. The authors of the article (2024YeZ_LiFJ) identified 91 skeletons with traces of manipulations with the remains. They are attributed to burials of the Dingsishan III-IV phase, aged 8.0-4.5 thousand years. 13 notches were found on the proximal part of various femurs. « Cutmarks on the femoral head, neck and intertrochanteric line, as well as along the medial linea aspera of the femoral shaft, suggest that soft tissue around the hip, including the iliofemoral ligament and the iliacus and adductor muscles, was severed to disarticulate the joint.» This and other postmortem bone injuries «... suggests that corpse treatment at Dingsishan included disarticulation » (2024YeZ_LiFJ). Figure 4 of the cited article shows the distribution and direction of cutmarks on human skeletons from Dingx...

Vertebrates

VERTEBRATES According to the molecular clock, a specific method for dating phylogenetic events, vertebrates (Vertebrata) separated from arthropods (Arthropoda) 976±97 Ma (2004HedgesSB_ShoeJL). The latter began to dominate in species diversity with the Cambrian burst of radiation, which occurred 520 Ma (2010EdgecombeGD). This ratio in the fauna of the Earth is still preserved. Approximately 525 Ma, the phylum Chordates separated from the group of bilaterally symmetrical animals (1995ChenJY_ZhouGQ). In turn, the evolution of chordate organisms led to the formation of the first vertebrates at least 500 Ma, from which the jawed mouths 450-400 Ma descended, becoming the ancestors of the placoderms or "armored" fish (Placodermi) (1979 НаумовНП _ КарташевНН ). Sculptural reconstruction of the placoderm Coccosteus from the order Arthrodires, Middle Devonian, 393.3-382.7 Ma ; exposition of the Orlov Paleontological Museum (Moscow); photo by the author. The first cartilaginou...

Inferior Portal. Part 1.

Original in Russian is available at the link: Нижний портал. Часть 1. below is a machine translation edited by a non-native speaker ( version dated 03/02/2025 ) . INFERIOR PORTAL FOR HIP ARTHROSCOPY: A PILOT STUDY PART 1. Background and Hypothesis Arkhipov S.V., Independent Researcher, Joensuu, Finland Abstract: The article presents, theoretically and graphically substantiates the technique of a new arthroscopic approach to the central compartment of the hip joint. It is proposed to introduce the optical system of the arthroscope from below through the acetabular notch without traction. Similar approaches were used for puncture, arthroscopy, arthrography, and arthrotomy of the hip joint. Diagnostics using the described lower portal will exclude complications caused by distraction of the leg and compression of the perineal support during surgery. CONTENTS PART 1. Background and Hypothesis [1] . Introduction [2] . Passage through t...

80-58bcApollonius Citiensis

Fragment from the treatise Apollonius Citiensis Commentary on the Hippocrates’ book On Joints ( Περὶ αρθρων π ραγματεὶα , 80-58 BC). The author notes the possibility of damage to the ligamentum capitis femoris (LCF) during hip dislocation. See our commentary at the link: 80-58bcApollonius Citiensis [Rus], and 2020ArkhipovSV_ProlyginaIV . Quote. [Grc] Περὶ αρθρων π ραγματεὶα . Βιβλιον γ ʹ . (original source: 1965KolleschJ_KudlienF, pp. 86, 88) Translation [Eng] Commentary On Joints ( Commentary on the Hippocrates’ book On Joints). Book 3. If the dislocated and displaced hip could not remain in place, then the physician [Hippocrates] would have clearly indicated the incurability of this case, so that we would not be led astray. Don't those who hold the opposite opinion know about the nature of joints, ligaments and the teachings about these things in general? After all, the physician considered the cause of the mild or, on the contrary, complex displacement and ...

THE OLDEST LCF

The very first four-legged animal, the lobe-finned fish Tiktaalik roseae, lived about 375 million years ago. Based on indirect evidence (paired notches of the acetabulum), we believe that in the hip joint it had two ligaments of the head of femur, in Latin called ligamentum capitis femoris (LCF). A similar anatomy of the hip joint is preserved in the salamander. Illustration Tiktaalik roseae is the first animal to have a LCF A) 3D model of the right pelvic bone of the fish Tiktaalik roseae (fragment of a screenshot: media.hhmi.org ), where we depicted the dissected anterior LCF (lig.cap.fem.ant.) and posterior LCF (lig.cap.fem.post.), that are attached to the corresponding notches of the acetabulum ( inc.ac.ant. & inc.ac.post.). Below the pelvis is a photograph of our model of the Tiktaalik roseae femur with fragments of two LCFs (a fossil femur of Tiktaalik roseae has not yet been discovered). B) View of a salamander femur with a proximal fragment of the ilia...

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