gms | German Medical Science

Deutscher Kongress für Orthopädie und Unfallchirurgie
74. Jahrestagung der Deutschen Gesellschaft für Unfallchirurgie
96. Tagung der Deutschen Gesellschaft für Orthopädie und Orthopädische Chirurgie
51. Tagung des Berufsverbandes der Fachärzte für Orthopädie und Unfallchirurgie

26. - 29.10.2010, Berlin

The sacro-iliac joint ligaments

Die Bandstrukturen des Sacroilacalgelenkes

Meeting Abstract

  • N. Hammer - Institut für Anatomie, Universität Leipzig, Germany
  • H. Steinke - Institut für Anatomie, Universität Leipzig, Germany
  • V. Slowik - Fakultät Bauwesen, HTWK Leipzig, Germany
  • J. Böhme - Universitätsklinikum, Klinik für Unfall-, Wiederherstellungs- und Plast. Chirurgie, Leipzig, Germany
  • K. Spanel-Borowski - Institut für Anatomie, Universität Leipzig, Germany
  • C. Josten - Universitätsklinikum, Klinik für Unfall-, Wiederherstellungs- und Plast. Chirurgie, Leipzig, Germany

Deutscher Kongress für Orthopädie und Unfallchirurgie. 74. Jahrestagung der Deutschen Gesellschaft für Unfallchirurgie, 96. Tagung der Deutschen Gesellschaft für Orthopädie und Orthopädische Chirurgie, 51. Tagung des Berufsverbandes der Fachärzte für Orthopädie. Berlin, 26.-29.10.2010. Düsseldorf: German Medical Science GMS Publishing House; 2010. DocIN16-1368

doi: 10.3205/10dkou093, urn:nbn:de:0183-10dkou0933

Published: October 21, 2010

© 2010 Hammer et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en). You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.


Outline

Text

Objective: The ligaments of the human sacro-iliac joint (SIJ) were investigated morphometrically.

A macroscopical study was performed to measure the anterior sacro-iliac ligament (ASL), the interosseous sacro-iliac ligament (ISL) and the posterior sacro-iliac ligament (PSL) applying different methods of ligament visualization.

Summary of Background Data: Little is known about the SIJ ligaments, especially about the ISL. Pelvic computer simulations neglect these ligaments due to the lack of information. Computer simulations of the SIJ ligaments may help to improve the clinical outcome of SIJ operations.

Methods: 7-tesla MR images, CT images and corresponding thin slice plastinates of the SIJ of one male and one female specimen were obtained. Serial sections of the SIJ of 32 frozen specimens (13 males, 19 females) were generated to gather measurements of the SIJ ligaments.

Results and conclusions: By means of the MR images and the plastinates, a virtual reconstruction of the SIJ ligaments was accomplished. Parallelepipeds were attributed to the cranial, middle and caudal parts of all SIJ ligaments. This allowed precise measurements and statistical comparison including positional relationships. The ISL volumes and origin surfaces were the largest. Statistically, the ASL and PSL parameters were larger in males, while the ISL parameters were larger in females. The height of the cranial ASL part showed large negative correlations in spite of positive correlations of the other heights.

The combined use of high-resolution MRI and thin slice plastination allows precise reconstructions of the SIJ ligaments. With these techniques, the ligaments can be visualized in situ and described morphometrically if based on substantive data. The SIJ ligaments are gender-dependent. This has to be taken into account for pelvic computer simulations.