gms | German Medical Science

Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016)

25.10. - 28.10.2016, Berlin

Femoral condyle configuration influences anterior cruciate ligament reconstruction

Meeting Abstract

  • presenting/speaker Simon Bischofberger - Uniklinik Köln, Köln, Germany
  • Lena Riemer - Uniklinik Köln, Köln, Germany
  • Peter Schäferhoff - Media Park Klinik Köln, Köln, Germany
  • Hauke Dewitz - Media Park Klinik Köln, Köln, Germany
  • Thomas Steimel - Media Park Klinik Köln, Köln, Germany
  • Sönke Reineck - Media Park Klinik Köln, Köln, Germany
  • Jens Dargel - Uniklinik Köln, Köln, Germany

Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016). Berlin, 25.-28.10.2016. Düsseldorf: German Medical Science GMS Publishing House; 2016. DocIN12-818

doi: 10.3205/16dkou001, urn:nbn:de:0183-16dkou0013

Veröffentlicht: 10. Oktober 2016

© 2016 Bischofberger et al.
Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). Lizenz-Angaben siehe http://creativecommons.org/licenses/by/4.0/.


Gliederung

Text

Objectives: Ruputure of the ACL is remainig a serious knee injury that effect mainly young and physically active people. It is known that the bony geometry of the distal femoral condyles has a significant influence on the knee joint kinematics and could effect the outcome after ACL reconstruction. The aim of this study was to prove if there is a correlation between the different configuration of femoral condyles and the appearance of ACL rerupture. The hypothesis was that femoral condyles with a roll form are more congruent to the tibial plateau than femoral condyles with a spheric configuration. Due to this hypothesis the more spherical the femoral condyles are the higher is the predisposition for ACL rupture or rerupture.

Methods: To analyse the individual surface geometry of the femoral condyles and the tibial plateau, 14 standardised measured parameter were taken from MRI of 335 knee joints. We compared three groups of patients. (1) intact ACL, (2) simply rupture of the native ACL and (3) one or more ruptures of an ACL-graft.

Results and Conclusion: Patients with reruptured ACL show a significant smaller radius of the extension facet (EF) of the medial and lateral femoral condyle when compared with patients with rupture of the native ACL (medial: radius r = 9.26 ± 1.29 mm; p<0,001; lateral: r = 9.91 ± 1.11 mm; p<0.001). Furthermore patients with ACL rupture show a significant smaller radius of the EF of the medial and lateral femoral condyle when compared with patients with an intact ACL (medial: r = 9.57 ± 0.96 mm; p=0.006; lateral: r = 10.20 ± 1.14 mm; p=0.003).

In summary, the smaller the radii of the extension facet of the medial and lateral femoral condyle are the more a patient seems to be proved to ACL rupture or rupture of an ACL graft.

Based on the results of this study, there is a correlation between the shape of the femoral condyles and the appearance of ACL rupture.