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The blog's publications are dedicated to the ligament of the head of femur, called ligamentum capitis femoris (LCF) in Latin. Articles and illustrative material, updated and publicly discussed.

On our platform, you can post your text about LCF for free in any language and further edit it. It is permissible to publish of significant quotes, annotation, or the entire work of another author, provided that his legal rights are respected. Participation in the project is a promising type of scientific cooperation, a way to increase efficiency in clinical practice and the effectiveness of research activities. Here, everyone's contribution is multiplied by the knowledge and experience of colleagues, as well as previous generations of doctors and scientists who have studied LCF.

All writers gain a convenient opportunity: to participate in discussions on the topics raised in their article, to receive comments from experts, valuable advice in practical work and scientific research. With us, it is possible to present and discuss an idea, record your priority, share links and materials. To help you will be a constantly growing database of texts, quotes, images from sources telling about LCF, formatted bibliographic references, classifications, and reviews.

Send us a new or previously written work (E-mail: archipovlcfbooks&gmail.com). In the letter, clearly express your will, indicating whether you allow:

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Image format: JPG preferred;

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Bibliographic references: any uniform format;

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Attribution (CC BY) – permission to copy, distribute and adapt, including for commercial purposes (author must be indicated).

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CCPlus (CC+) is a standard Creative Commons license extended by an additional agreement.

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We wish you mutually beneficial cooperation!

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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:

Публикации блога посвящены связке головки бедренной кости, именуемой на латыни ligamentum capitis femoris (LCF). Статьи и иллюстративный материал, обновляемый и публично обсуждаемый.

На нашей площадке Вы можете разместить свой текст о LCF бесплатно на любом языке и далее его корректировать. Допустима публикация значимой цитаты, аннотации или всего произведения иного автора при условии соблюдения его законных прав. Участие в проекте – это перспективный вид научной кооперации, способ повышения эффективности в клинической практике и результативности исследовательской деятельности. Здесь вклад каждого умножается знаниями и опытом коллег, а также предшествующих поколений докторов и ученых, изучавших LCF.

Все писатели о LCF обретают удобную возможность: участия в дискуссиях по темам, поднятым в их статье, получать комментарии специалистов и ценные советы в практической работе и научных изысканиях. У нас возможно представить и обсудить идею, зафиксировать свой приоритет, поделиться ссылками и материалами. В помощь Вам будет постоянно увеличивающаяся база текстов, цитат, изображений из источников, повествующих о LCF, отформатированные библиографические ссылки, классификации и обзоры.

Пришлите нам новую или ранее написанную Вами работу (E-mail: archipovlcfbooks&gmail.com). В письме ясно выразите свою волю, отметив разрешаете ли Вы:

1. Использование и копирование Вашего материала коллегами (с обязательным указанием автора);

2. Редактирование Вашего текста и изображений (например: только исправление ошибок и формата);

3. Дополнение Вашей работы текстом, таблицами, графикой других авторов (например: лишь в качестве примечаний).

Основные требования к публикациям:

Тематика: любая с обязательным упоминанием LCF;

Форматирование текста: произвольное;

Стиль: авторский, научный;

Формат изображений: предпочтительно JPG;

Таблицы и диаграммы: в виде слайда презентации;

Размер публикации: разумный;

Библиографические ссылки: любой единый формат;

Желательно указание типа лицензии Creative Commons (подробнее: creativecommons.org; en.wikipedia.org). Кратко об основных типах лицензий:

Public Domain (CC0) – общественное достояние, разрешены все виды использования (можно без указания автора.

Attribution (CC BY) – разрешено копировать, распространять и адаптировать, в том числе для коммерческих целей (обязательно указание автора).

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Attribution-ShareAlike (CC BY-SA) – разрешено распространять и всячески адаптировать, подразумевая коммерческие цели, но с той же лицензией (обязательно указание автора).

Attribution-NoDerivs (CC BY-ND) – запрещено вносить изменения, использовать «как есть» (обязательно указание автора).

Attribution-NonCommercial-ShareAlike (CC BY-NC-SA) – разрешено только для некоммерческих целей, возможно видоизменение, производное произведение с такой же ицензией (обязательно указание автора).

Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) – разрешено только для некоммерческих целей, запрещены изменения (обязательно указание автора).

CCPlus (CC+) – стандартная лицензия Creative Commons расширенная дополнительным соглашением.

Важно, что площадка по обмену мнениями на веб-сервисе Blogger позволяет сохранить свою публикацию доступной для коллег в течение неограниченного времени и без финансовых затрат. Желаем Вам взаимовыгодного сотрудничества!

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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...

LCF in 2026 (May)

LCF in 2026 (May ) (Quotes from articles and books published in May 2026 mentioning the ligamentum capitis femoris) Kim, P. S., Kang, C., Lee, J. K., & Hwang, J. M. (2026). Hip arthroscopy to treat symptomatic paralabral cysts: a retrospective analysis of clinical outcomes. Arthroscopy and Orthopedic Sports Medicine , 13 (1), 27-34. [i] e-aosm.org Ko, H. Y. (2026). Vascular Anatomy of the Extremities and Lungs. In Practical Functional Anatomy for Spinal Cord Injury Rehabilitation: A Guide for Physiatrists and Rehabilitation Specialists (pp. 191-223). Singapore: Springer Nature Singapore. [ii] link.springer.com Aiba, H., Yamaguchi, M., Kimura, H., & Murakami, H. (2026). Advances in limb-salvage surgery and reconstruction for pediatric bone and soft tissue tumors. Frontiers in Pediatrics , 14 , 1817788. [iii] pmc.ncbi.nlm.nih.gov Bajwa, A., Villar, R., ...

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...

1943SinzWA

Sinz WA , s culpture Jacob and the Angel (1943). 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 ). Walter A. Sinz – Jacob and the Angel (1943). Ceramic. Gift of Hilda Kisella (2007.187) ; original in clevelandart.org collect...

2008ArkhipovSV

On the Role of the Ligamentum Capitis Femoris in the Maintenance of Different Types of Erect Posture S.V. Arkhipov Keywords: ligamentum capitis femoris, ligamentum teres, ligament of head of femur, abductor muscle group, role, function, hip joint, model, biomechanics, walk, gait cycle, single-legged stance ABSTRACT New experimental and clinical data on the function of the ligamentum capitis femoris (LCF) and its participation in maintaining an erect posture were obtained. It was established that this anatomical element is involved in constraining the hip joint adduction and may ﬁ x the joint in the frontal plane, turning it into an analogue of a second-class lever. In both unstrained one-support and asymmetrical two-support orthostatic postures, when the LCF is stretched and the abductor muscle group is exerted, a load equal to the body weight is evenly distributed between the upper and lower hemispheres of the caput femoris. In addition, the LCF fu...

1132Sant’Orso

Collegiate Church of Sant’Orso of Aosta (France), capital – Jacob with the Angel (1132). 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 ). Collegiate Church of Sant’Orso of Aosta (1132) Capital № 21 – Jacob with the Angel. О riginal ...

1753TarinP

Fragments from the book Tarin P. Ostéo-graphie (1753). The author notes the localization of ligamentum capitis femoris (LCF) and uses synonyms: ligament rond, ligamentum teres capitis femoris. The text is prepared for machine translation using a service built into the blog from Google or your web browser. Quote p. 24 Les Ligamens de l'extrémité inférieure sont, 1°. la Membrane capsulaire, &c. de la cavité cotyloïde, le Ligament rond, l'Appareil ligamenteux propre à cette cavité; le Ligament transveríal interne de son bord, le transversal externe, les deux Ligamens glanduleux; … Quote p. 54. Illæ tres offeæ portiones simul unitæ Cavitatem cotyloïdeam q.t. a. constituunt, in qua occurrit Foveols h. glandulas synoviales articulationis excipiens, cuique sesc inserit ligamentum teres capitis femoris, &c. Vid. t. u. v. TAB. I. II. III. External links Tarin P. Ostéo-graphie, ou Description des os de l'adulte, du foetus, &c. Precedée d'une introduction a l'etu...

20c.WikstromB

Wikstrom B , s culpture I will not let you go» (Jacob wrestling the Angel , 20th 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 ). Brit Wikstrom – « I will not let you go» (Jacob wrestling the Angel , 20th?) . O riginal in gg...

Postulates of LCF Mechanics

Postulates of LCF mechanics We continue to develop a new scientific direction « Mechanics of the Ligamentum Capitis Femoris »: https://roundligament.blogspot.com/2024/10/lcf-mechanics.html Analysis of the accumulated information allowed us to clarify the postulates of this scientific discipline: - Strong, flexible, and non-stretchable with specific attachment points. - Limits adduction, rotation, and cranial displacement of the femur. - Ensures rhythmicity, symmetry, and energy efficiency of walking. - Performs the function to suspend the pelvis during single-leg support. - Shunts load on the femoral head and the abductor muscle group of the hip joint. NB! Considering these positions in your clinical practice, you will reduce the likelihood of developing hip osteoarthritis and gait disturbances in patients. Join the group LIGAMENTUM CAPITIS FEMORIS Publication in the facebook group 05/11/2025. BLOG CONTENT NEWS AND ANNOUNCEMENTS FACEBOOK

1531SteucoA

Content [i] Annotation [ii] Original text (in Latin) [iii] English translation [iv] Source & links [v] Notes [vi] Authors & Affiliations [vii] Keywords [i] Annotation Fragments from the book: Steuco A . Augustini Steuchi Eugubini Veteris Testamenti ad ueritatem Hebraicam recognitio (1531). The author discusses the term ligamentum capitis femoris (LCF) in the book of Genesis and notes that this structure serves a supporting and motor function and, when injured, causes lameness. The text in Russian is available at the following link: 1531SteucoA . [ii] Original text (in Latin) Quote p. 308 Tetigit neruum fœmoris כַּף יְרֵבוּ id est Latitudinem coxæ asseruntqs. Hebræi significare hoc loco latum os coxæ: ut ab Auen Esdra quoqs annotatu est : in ea parte neruus coxæ est : at qs hoc est quòd post neruū arefactum claudicabat Iacob. Nõ enim neruus hoc loco, membrű genitale significat: q...

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