1824BarclayJ

 

The author expressed the original opinion: ligamentum capitis femoris (LCF) movements stimulate the production of synovial fluid. Additionally, John Barclay believed that the LCF restricts the translational movements of the femoral head upwards and outwards. 

PLATE  XXII.  Continued,

THE ACETABULUM.

R, the acetabulum in which the head of the femur ; rolled, is better seen in the preceding Plate. It appears from  the  double  lines  that  it  is  formed  by  the  ilium, ischium,  and  pubis  ; the  ischium  forming  the  greatest part,  and  the  pubis  the  least.  It  is  deeper  above than  below,  as  the  femur  is  more  liable  to  be  luxated upwards  than  downwards.  At  the  lower  part,  towards the  foramen  U,  there  is  a deficiency  of  bone,  at  which part,  the  blood-vessels  enter  to  supply  the  organs that  were  lodged  within  the  cavity.  In  the  recent subject,  the  whole  is  deepened  by  a ligamento-cartilagenous brim,  which  protects  the  thin  osseous  margin  ; and  which,  extending  across  the  notch,  affords  also  protection to  the  blood-vessels  that  run  under  it.  The whole  of  the  bottom,  excepting  at  T,  the  seat  of  an interarticular  gland,  is  covered  with  cartilage.  This gland  assists  the  capsular  ligament  in  supplying  the joint  with  the  necessary  quantity  of  lubricating  fluid  : and  from  a ligament  passing  through  it  to  the  head  of the  femur,  a ligament  affected  by  every  change  of  relative position  between  its  opposite  points  of  attachment, the  excitement  of  the  gland,  and  consequently its  secretion,  is  in  ordinary  cases  always  proportioned to  the  quantity  of  motion.  Yet  the  ligament,  besides, performs  another  office  in  contributing  to  the  security of  the  joint ; when  the  femur  is  impelled  upwards and  outwards,  this  ligament  changes  its  direction ; and  when  the  impulse  is  not  too  great,  forces  back the  head  into  the  acetabulum,  producing  the  effect, not  so  much  by  its  physical  strength,  as  by  a happy mechanical  contrivance.  This  effect,  as  well  as  the contrivance  by  which  it  is  produced,  may  be  seen  by removing  the  capsular  ligament,  by  then  dislodging the  head  of  the  femur,  and  afterwards  pushing  it  upwards and  outwards. 

PLATE XXII. 

PLATE XXIII. From Sue.

H, the depression where the ligament was attached that passed through the interarticular gland. 

PLATE XXIII.

External links

Barclay J. A series of engravings representing the bones of the human skeleton: with the skeletons of some of the lower animals and explanatory references, … Plates engraved Edward Mitchell, Edinburgh. Second edition. Edinburgh: MacLachlan and Stewart,1824. [archive.org] 

Authors & Affiliations

John Barclay (1758–1826) was a Scottish comparative anatomist, extramural teacher in anatomy, and director of the Highland Society of Scotland. [wikipedia.org] 

John Barclay 
Engraved by Edward Mitchell (from 1824BarclayJ)

Keywords

ligamentum capitis femoris, ligamentum teres, ligament of head of femur, anatomy, significance, role

                                                                                                                    

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