World Library  
Flag as Inappropriate
Email this Article

Ligament of head of femur

Article Id: WHEBN0005012913
Reproduction Date:

Title: Ligament of head of femur  
Author: World Heritage Encyclopedia
Language: English
Subject: Acetabular fossa, Joints of lower limbs, Posterior tibiofibular ligament, Dorsal talonavicular ligament, Pubofemoral ligament
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Ligament of head of femur

Ligament of head of femur
Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis (Ligament of head of femur labeled as ligt. teres at cente.)
Hip-joint, front view. The capsular ligament has been largely removed (ligament visible at center labeled as ligam teres)
Details
Latin Ligamentum capitis femoris, ligamentum teres femoris
From Femur head
To Acetabular notch
Anatomical terminology

In human anatomy, the ligament of the head of the femur (round ligament of the femur or the foveal ligament) is a ligament located in the hip. It is triangular in shape and somewhat flattened. The ligament is implanted by its apex into the antero-superior part of the fovea capitis femoris and its base is attached by two bands, one into either side of the acetabular notch, and between these bony attachments it blends with the transverse ligament.[1]

It is ensheathed by the synovial membrane, and varies greatly in strength in different subjects; occasionally only the synovial fold exists, and in rare cases even this is absent.[1]

The ligament of the head of the femur contains within it the acetabular branch of the obturator artery.

Function

The ligament is made tense when the thigh is semiflexed and the limb then abducted or rotated outward; it is, on the other hand, relaxed when the limb is adducted.[1]

Research suggests it contributes little influence as a ligament past childhood,[2] although it may still be important in transmitting arterial supply to the head.

In humans, it has been suggested that it is not the ligamentum teres but the hip capsule (specifically the iliofemoral, ischiofemoral and pubofemoral ligaments) that provides the primary resistance to dislocation in the extended hip. However, recent research has suggested the ligamentum teres of the femur may have a number of functions, including a significant biomechanical role on the basis of cadaveric studies where increases of range of motion were seen after sectioning of the ligament.[3]

Other animals

It has been suggested that some animals, such as the orangutan and Indian elephant lack a ligamentum teres.[4][5] However, the presence of a ligamenum teres, albeit with a morphology different to the human version, has been found upon dissection in both these animals. In the orangutan it is believed to play a significant role in preventing dislocation of the femoral head in extreme ranges of motion. In the Indian elephant it is the primary support of the hip joint when the hind limbs are abducted.[6]

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

  1. ^ a b c Gray's Anatomy (1918), see infobox
  2. ^ Tan CK, Wong WC (August 1990). "Absence of the ligament of head of femur in the human hip joint". Singapore Medical Journal 31 (4): 360–3.  
  3. ^ [3], O'Donnell, J. M., Pritchard, M., Salas, A. P., & Singh, P. J. (2014). The ligamentum teres--its increasing importance. Journal of Hip Preservation Surgery, 1(1), 3-11. doi: 10.1093/jhps/hnu003
  4. ^ Femur article, Encyclopædia Britannica.
  5. ^ Ishida, Hidemi (2006). "Current Thoughts on Terrestrialization in African Apes and the Origin of Human Bipedalism". In Ishida, Hidemi; Tuttle, Russell; Pickford, Martin; Ogihara, Naomichi; Nakatsukasa, Masato. Human Origins and Environmental Backgrounds. Developments in Primatology: Progress and Prospects. pp. 259–66.  
  6. ^ [4], Crelin, E. S. (1988). Ligament of the head of the femur in the orangutan and Indian elephant. Yale J Biol Med, 61(5), 383-388.
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.