Abstract and citation of the article Fuss FK, Bacher A. New aspects of the morphology and function of the human hip joint ligaments (1991). The authors suggest that ligamentum capitis femoris (LCF) is unable to exert a restricting function, despite reaching a state of tension in extreme adduction.
Quote 1.
Abstract
The capsular ligaments of the human
hip joint were submitted to exact morphological analysis, and they proved to be
multiple and numerous. We have described various ligamentous systems and their
interconnections, and have suggested new terminologies and systematics. The
ligaments were subjected to functional analysis by means of measuring strips to
determine the positions in which the ligaments are taut. The ligament systems
were all found to serve a restrictive function, and various parts of the
apparatus restricted all possible movements in the hip joint. Extension is
restricted by the medial iliofemoral complex, abduction by the pubofemoral
ligament, and adduction by the posterior coxal ligaments and by the superior
ischiofemoral ligament. Flexion is restricted by the inferior ischiofemoral
ligaments, inward rotation by the superior ischiofemoral ligament, and outward
rotation by the lateral iliofemoral complex. Only the ligament of the femoral
head is unable to exert a restricting function, despite reaching a state of
tension in extreme adduction.
Quote 2.
The function of the ligament of the
femoral head
The distance between acetabular and
femoral attachments of the ligament of the femoral head is maximal in extreme
adduction (when not combined with extreme flexion or extension). The anterior
part is most lengthened during inward rotation, while the posterior part is
most stretched in the course of outward rotation. The ligament was found to be
under some degree of tension in these positions. This was also proven by the fact
that the transverse ligament of the acetabulum was pulled slightly upwards in
maximal adduction. However, no augmentation of adduction could be obtained by
severing the ligament of the femoral head. The ligaments of the articular
capsule thus are solely responsible for the restriction of adduction. When the opposite
situation was tested (capsule removed but ligament of the femoral head
maintained), an increase of adduction could only be obtained by dislocating the
joint, and this only when the axis of dislocation coincided with the acetabular
notch (Fig. 7). In summary, we cannot attribute any significant role to the
ligament of the femoral head, specifically with regard to restricting
adduction.
External links
Fuss FK,
Bacher A. New aspects of the morphology and function of the human hip joint
ligaments. American
journal of anatomy. 1991;192(1)1-13.
[onlinelibrary.wiley.com]
Authors &
Affiliations
Franz
K. Fuss
Institute
of Anatomy (1st Department) of the University of Vienna, Vienna, Austria
Andreas
Bacher
Institute
of Anatomy (1st Department) of the University of Vienna, Vienna, Austria
Keywords
ligamentum capitis
femoris, ligamentum teres, ligament of head of femur, role, significant, anatomy
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