What is more important?

What is more important?

What is more important, m. gluteus medius or ligamentum capitis femoris?
See the paradox in the experiment and its analysis:
https://kruglayasvyazka.blogspot.com/2024/07/lcf_9.html
https://kruglayasvyazka.blogspot.com/2024/07/lcf_10.html

Publication in the facebook group 05/15/2025.

My comment on the view on LCF as a shock absorber:

The elastic modulus of rubber is 5-9 MPa, polyethylene film (LDPE) 10-90 MPa.
The elastic modulus of tendon is 160 MPa (Федорова ВН, Фаустов ЕВ, 2008).
The elastic modulus of LCF under tension reaches 252.8±23.0 MPa (Gao F, Yang Y, Ma H, 2008). Mechanical properties show that under load along the fibrils, this structure is not elastic enough. In my opinion, LCF acts not as a spring, but as a low-stretch cord.

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CATALOG OF LITERATURE ON THE LCF

Catalog of literature on the LCF (Books, articles, links, reference, mention …) NEOLITHIC AND BRONZE (8,000 to 2,000 years BCE) https://roundligament.blogspot.com/2024/10/neolithic-and-bronze.html IRON AGE (10th-1st century BCE) https://roundligament.blogspot.com/2024/10/iron-age.html 1st-10th Century https://roundligament.blogspot.com/2024/10/1st-10th-century.html 11th-15th Century https://roundligament.blogspot.com/2024/10/11th-15th-century.html 16th Century https://roundligament.blogspot.com/2024/10/16th-century.html 17th Century https://roundligament.blogspot.com/2024/10/17th-century.html 18th Century https :// roundligament . blogspot . com /2024/10/18 th - century . html 19th Century https://roundligament.blogspot.com/2024/10/19th-century.html 20th Century https://roundligament.blogspot.com/2024/10/20th-century.html 21st Century https://roundligament.blogspot.com/2024/10/21st-century.html BLOG CONTENT TH...

1833GerdyPN

P.N. Gerdy, in his experiment, discovered tensioning of the ligamentum capitis femoris (LCF) during thigh adduction. At the same time, it was noted for the first time that the consequence of LCF tension during hip adduction is a downward and lateral displacement of the femoral head. Normally, this mechanism provides unloading of the upper articular surfaces when supporting one leg (see 1874SavoryWS ). The translation from French was done in collaboration with ChatGPT 3.5. Gerdy PN. Physiologie médicale, didactique et critique. T. 1. Paris: Librairie de Crochard, 1833. [fragment] Quote pp. 551-554 L'inclinaison de la cuisse en dehors, que l'on nomme son abduction, est un mouvement assez étendu, mais qui pourtant ne permet pas à la cuisse de se placer perpendiculairement à sa direction verticale. Les batteleurs peuvent se reposer sur un plan horizontal, les cuisses écartées en sens opposé. Dans l'inclinaison ...

LCF in 2025 (May)

LCF in 2025 (May): Quotes from articles and books published in May 2025 mentioning the ligamentum capitis femoris. Teytelbaum, D. E., Bijanki, V., Samuel, S. P., Silva, S., Israel, H., & van Bosse, H. J. Does Open Reduction of Arthrogrypotic Hips Cause Stiffness?. Journal of Pediatric Orthopaedics , 10-1097. DOI: 10.1097/BPO.0000000000002940 [i] journals.lww.com SANTORI, N., & TECCE, S. M. (2025). FUTURE DIRECTIONS IN ARTHROSCOPY FOR HIP TRAUMA. Advancements of Hip Arthroscopy in Trauma , 136-143. [ii] books.google RANDELLI, F. (2025). ARTHROSCOPIC FREE-BODY REMOVAL AFTER DISLOCATION OR AFTER BULLET/BOMB. Advancements of Hip Arthroscopy in Trauma , 1-11. [iii] books.google APRATO, A. (2025). ARTHROSCOPIC TECHNIQUES FOR FEMORAL HEAD FRACTURE REDUCTION AND FIXATION. Advancements of Hip Arthroscopy in Trauma , 38. [iv] books.google Brinkman, J. C., & Hartigan, D. E. (2025). Indications f...

1290Egerton1066

Miniature Jacob Wrestling with the Angel from Egerton 1066 (ca. 1270 – 1290?). Depicting the circumstances and mechanism of the ligamentum capitis femoris (LCF) injury based on the description in the Book of Genesis: 25 And Jacob 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 ). Initial E from Egerton 1066 – Jacob Wrestling with the Angel (ca. 1270 – 1290?) original ...

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...

INVITATION TO COOPERATION

We offer cooperation in the following areas: - biomechanics of the hip joint in normal and pathological conditions; - hip joint endoprostheses with ligament analogues; - non-standard methods of arthroscopy of the hip joint; - reconstruction and prosthetics of the ligament of head of femur; - early diagnosis of coxarthrosis and pathology of the ligament of head of femur; - pathogenesis of dystrophic diseases of the hip joint; - joints with flexible elements for walking robots. Please send correspondence to: archipovlcfbooks&gmail.com 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: Мы п...

THE DOCTRINE OF LCF

THE DOCTRINE OF ligamentum capitis femoris: An Instrument of Knowledge and Innovation. Definition: A set of theoretical provisions on all aspects of knowledge about the anatomical element ligamentum capitis femoris (LCF). 1. Structure of the Doctrine of LCF 2. Practical Application of the Doctrine of LCF : 2.1. Diagnostics 2.1. Prevention 2.3. Prognosis 2.4. Pathology 2.5. Veterinary 2.6. Professions 2.7. Products 2.8. Surgery 3. Theory of LCF Mechanics 4. The Base of the Doctrine of LCF 5. Stairway to the Past or History of the Doctrine of LCF 6. Ultimate Depth of Researches 7. Appendices 7.1. Acceptable Synonyms Structure of the Doctrine of ligamentum capitis femoris . E a R T ...

1996(c)ArkhipovSV

Hip joint prostheses ( Протез тазобедренного сустава ) Patent Application RU96110383A Inventor Сергей Васильевич Архипов Original Assignee Sergey Vasilyevich Arkhipov Application RU96110383/14A events 1996-05-23 Application filed by С.В. Архипов 1998-08-10 Publication of RU96110383A Claims 1. The hip joint prosthesis comprising a femoral component, are fixed in the femoral head, characterized in that the femoral component is designed as a pyramid whose base has the form of a spherical surface, and the faces contains ledges perpendicular trabecular bone, in addition to the femoral component coupled to the flexible member, which is passed through a through hole formed in the femoral component, and the ends of the flexible member are provided with fastening elements. 2. The prosthesis of claim. 1, characterized in that the fastening elements are made of a metal with shape memory. 3. The prosthesis of claim. 1, characterized in that the faces of the femoral component have...

Main Scheme

Interaction of ligaments of the hip joint and muscles during single-leg support BLOG CONTENT IMAGES AND VIDEOS

ACETABULAR CANAL

Acetabular Canal (Anatomy, topography and significance of the functioning area of the ligamentum capitis femoris) Acetabular Canal. Part 1. This article describes the space where the ligamentum capitis femoris (LCF) attaches and functions. Acetabular Canal. Part 2. This article describes the space where the ligamentum capitis femoris (LCF) attaches and functions. Acetabular Canal. Part 3. This article describes the space where the ligamentum capitis femoris (LCF) attaches and functions. BLOG CONTENT THE DOCTRINE OF LCF MORPHOLOGY AND TOPOGRAPHY ...

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