1991FussFK_BacherA

 

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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