Homo neanderthalensis

HOMO NEANDERTHALENSIS

Homo neanderthalensis flourished 500-30 thousand years ago in Europe and Asia. It is assumed that its ancestor could have been Homo ergaster or Homo heidelbergensis (2005KleinR).

Homo sapiens neanderthalensis «Mr. N» Neanderthal Museum in Mettmann, fragment of the original photograph; source in the wikimedia.org collection (license CC BY-SA 4.0, no changes).

Neanderthal, late type, the old man from La Chapelle-aux-Saints, reconstruction by M.M. Gerasimov; exposition of the Orlov Paleontological Museum (Moscow); photo by the author.

A reconstruction of the pelvis of the Neanderthal "Kebara 2" (Israel), whose remains are dated to 64-59 Kya (2021AdegboyegaMT_WeaverTD), is known. The well-preserved right pelvic bone (Fig. 1) has a large acetabulum with fossa and acetabular notch, indicating the presence of ligamentum capitis femoris (LCF).

Neanderthal pelvis, right acetabulum view from the lateral side (3-D model); original image on sketchfab.com.

The configuration of the acetabulum of Homo neanderthalensis leaves no doubt about the presence of LCF in this species. Additional evidence is the fossa of the femoral head. We were unable to personally examine the femoral head of Homo neanderthalensis with a fovea for LCF. The presence of the said structure in Homo neanderthalensis is confirmed in the dissertation of K.H. Tamvada (2015), which examines in detail the biomechanics of the femur of this species. In particular, the author, modeling the proximal femur and its movements, identifies the fovea capitis node «to imitate the ligamentum teres».

References

Klein R. Hominin dispersals in the Old World. In: Scarre C (Ed). The Human Past: World Prehistory & the Development of Human Societies. Thames & Hudson, 2005:84-123. [researchgate.net]

Adegboyega MT, Stamos PA, Hublin JJ, Weaver TD. Virtual reconstruction of the Kebara 2 Neanderthal pelvis. Journal of Human Evolution. 2021;151:102922. [academia.edu]

Tamvada KH. The biomechanical and behavioral significance of the Neanderthal femur. Legacy Theses & Dissertations (2009 - 2024). 1522. University at Albany, State University of New York, 2015. [scholarsarchive.library.albany.edu]

Keywords

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, doctrine, homo neanderthalensis

The original text in Russian is available at the link: Homo neanderthalensis

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BLOG CONTENT

999–10 Kya

Comments

2025ArkhipovSV. Why Acetabular Labrum Repair May Be Ineffective

Original in Russian is available at the link: С.В. Архипова «Почему восстановление вертлужной губы может быть неэффективно?» (06.04.2025) , below is a machine translation edited by a non-native speaker (version dated 06/04/2025). Thematic Internet Journal About round ligament of femur April 2025 WHY ACETABULAR LABRUM REPAIR MAY BE INEFFECTIVE?: A NOTE ON THE MYSTERIOUS "DARK MATTER" OF THE HIP JOINT S.V. Arkhipov, Independent Researcher, Joensuu, Finland Abstract Acetabular labrum repair and reconstruction do not prevent hip joint instability during gait and the development of osteoarthritis in the case of an elongated ligamentum capitis femoris. This conclusion is based on mathematical calculations and analysis of experiments conducted on a mechanical hip joint model. Keywords : arthroscopy, hip joint, acetabular labrum, ligamentum capitis femoris, ligamentum teres, ligament of head of femur , reconstruction, repair Introduction Nearly 80% of primary hip ar...

2025ArkhipovSV. Human Children

The monograph Arkhipov S.V. Human Children: The Origins of Biblical Legends from a Physician's Perspective. An essay with references to interactive materials. 2nd revised and expanded edition. Joensuu: Author's Edition, 2025. [In Russian]. The monograph dates the writing of the Book of Genesis and the events depicted in it, as well as refutes the authorship of Moses. I offer mutually beneficial cooperation (50/50) in literary translation into English or native language. Proofreading of machine translation and cooperation in editing are expected. Requirements for co-author: 1. Native speaker 2. Experience as a writer. E-mail: archipovsv(&)gmail.com Annotation The first version of the Book of Genesis appeared in Ancient Egypt approximately 3,600 years ago, during the Hyksos period. The work was conceived as a fairy tale epic. An unknown physician-encyclopedist, who is also presumed to have authored the Edwin Smith Papyrus, played a role in its composition...

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...

Grok. Review of the Article by S.V. Arkhipov "Why Restoration of the Acetabular Labrum May Be Ineffective?".

At our request, Grok, artificial intelligence developed by xAI, 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 ). In accordance with the comments, the article was revised and sent for re-review to the ChatGPT language model prepared to assist in the analysis and editing of texts (OpenAI, 2025). Below is the original text of the review by Grok: Review of the Article by S.V. Arkhipov "Why Restoration of the Acetabular Labrum May Be Ineffective?: A Note on the Mysterious 'Dark Matter' of the Hip Joint". This review focuses on the analysis of argumentation, as requested. The author asserts that restoration of the acetabular labrum fails to prevent hip joint instability and osteoarthritis when the ligame...

BLOG CONTENT

T he ligament of the head of femur or ligamentum capitis femoris (LCF) is the key to a graceful gait and understanding the causes of hip joint diseases. We present promising scientific knowledge necessary for preserving health, to create new implants and techniques of treating degenerative pathology and damage of the hip joint. Project objective : preserving a normal gait and quality of life, helping to study of hip joint biomechanics, developing effective treatments for its diseases and injuries. In translating to English, the author is assisted by ChatGPT (version 3.5) and the Google Translate service . We're sorry for any flaws in the syntax. The meaning makes up for the imperfections! TABLES OF CONTENTS ANCIENT MENTIONS (Early literary evidence and early authors... ) 976-1115Theophilus Protospatharius The author writes about the normal anatomy of the LCF and its connective function. 10...

922-722bcElohist

Excerpt from the book of Bereishit (Genesis), the lost biblical source Elohist, written in Paleo-Hebrew script. A variant of the oldest description of damage to the ligamentum capitis femoris (LCF) and the cause of lameness in Hebrew, dating from 922-722 BCE. See our commentary at the link: 922-722bcElohist [Rus]. Quote [ Paleo-Hebrew ] Elohist. Bereshit 32:32-33 (original source: 5784 Moshe Ben Amram, p. 41; our correction) Translation [Eng] Elohist. Bereshit 32:32-33 and the sun riseth on him when he hath passed over Penuel, and he is halting on his thigh; therefore the sons of Israel do not eat the sinew which shrank, which is on the hollow of the thigh, unto this day, because He came against the hollow of Jacob's thigh, against the sinew which shrank. (our correction-reconstruction of the version 1898 YoungR ( p. 23, Bereishit 32:32-33); preserved the text of the age of 922-722 BC belonging to the lost biblical source "Elohist") Moshe Ben Amram. Pentateuch in P...

165-257Shmuel

Sayings of Yehuda ben Ilai extracted from the tractates Pesachim and Chullin (Babylonian Talmud). Babylonian Talmud was written between about 450 - 550 in present-day Iraq (formerly Babylonia). Babylonian physician identifies location and distal attachment site of ligamentum capitis femoris (LCF) and demonstrates knowledge of its injury potential. See our commentary at the link: 165-257Shmuel [Rus]. Quote 1. [Heb] Pesachim 83b10 (original source: sefaria.org ) Quote 2. [Heb] Chullin 91a2 (original source: sefaria.org ) Quote 3. [Heb] Chullin 93b9 (original source: sefaria.org ) Quote 4. [Heb] Chullin 96a11 (original source: sefaria.org ) Quote 5. [Heb] Chullin 96b3 (original source: sefaria.org ) Translation Quote 1. [Eng] Passover Festivals 83b10 Ravina said: This discussion pertains to the outer nerve, and it is in accordance with that which Rav Yehuda said that Shmuel said, as Rav Yehuda said that Shmuel said: There are t...

Pathological Changes of LCF

Version : 20240419 RESULT OF PATHOLOGICAL CHANGE OF LCF 1. Absence of detectable changes 2. Elongation 3. Shortening 4. Thinning (hypotrophy) 5. Thickening (hypertrophy) 6. Disappearance 7. Impingement (within the joint space) 8. Compression (in the fossa of the acetabulum) 9. Marginal defect 10. Distally detached fragment 11. Proximally detached fragment 12. Two-fragments injury (in the midsection) 13. Avulsion-fracture of the distal end 14. Avulsion-fracture of the proximal end 15. Subsynovial avulsion of the distal end 16. Subsynovial avulsion of the proximal end 17. Synovial sheath 18. Partial distal end detachment 19. Partial proximal end detachment 20. Partial subsynovial injury 21. Complete subsynovial injury 22. Combination of pathological changes PATHOMORPHOLOGICAL CHANGES OF LCF 1. Edema 2. Dystrophic change in the stroma 3. Total dystrophic change 4. Metaplasia 5. Sclerosis 6. Hyalinosis 7. Fibrosis ...

1956SingerCJ

Fragment from the book Singer CJ (Ed., trans.). On anatomical procedures: De anatomicis administrationibus (1956). Galen writes about the high resiliency and hardness of ligamentum capitis femoris (LCF), and also notes its connective function. See our commentary at the link: 1956SingerCJ [Rus], and 2020ArkhipovSV_ProlyginaIV . Quote. p. 55. [Eng] On anatomical procedures; Book II. Chapter 10. As with the arm you examined the ligaments of the bones, so now examine those of all the exposed joints and first of the hip. This has one ligament embracing it [capsular ligament], as with all joints. A second, hidden in the depths of the joint [ligamentum teres], ties the head of the femur to the hollow in the hip-bone [acetabulum]. It is so tough that it could be called a 'cartilaginous sinew'. (Transl. by Ch. Singer; original source: 1821KühnCG ). External links Singer CJ (Ed., trans.). On anatomical procedures: De anatomicis administrationibus. London, New York, Toronto: P...

1801BellJ

Selected fragments of the book Bell J. The Principles of Surgery (1801). The author discusses hip injuries and the mechanism of ligamentum capitis femoris (LCF) injury. Bell's drawing and reasoning probably led 1823GerdyPN to consider the role of LCF tension in hip dislocation. Quote pp. 523-524 The acetabulum or socket for the thigh bone is formed in the centre of the greatest and firmest bone of the pelvis, named os innominatum, from its irregular shape. It is in the adult the largest and firmest bone of the pelvis, but in the child it is formed of three distinct bones, the Ilium, Ischium, and Pubis. These are joined by an intermediate cartilage, and are easily separated into distinct bones. At an early age this cartilage is prominent, and somewhat of a triangular form. The cartilage is ossified in the adult, and it being ossified, becomes more prominent, and makes a high triangular projection in the centre of the socket; this prominence gives a firmer connexio...

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