engleski

The Length and Position of the Lateral Intercondylar Ridge

Introduction: Lateral intercondylar ridge (LIR) is recognized as anterior border of the anterior cruciate ligament’s (ACL) femoral footprint. It is the main landmark to determine the placement of the femoral tunnel during anatomic reconstructions of the anterior cruciate ligament. Aim: The purpose of this investigation was to establish the incidence of presence of the LIR in femoral specimens, and to determine the length and position of the LIR on the roof of the intercondylar fossa. Materials and methods: We analyzed 19 femoral specimens of unknown age and gender at the Department of Anatomy, Faculty of Medicine, University of Rijeka. The LIR has been divided into the part that belongs to the condyle and the part that belongs to the roof of intercondylar fossa. The border is presented by the sagittal axis which is extending in the spatial angle between the lateral condyle and the roof of intercondylar fossa. The length of LIR was measured from the sagittal axis to the LIR end on the roof of intercondylar fossa. Results: The condylar part of the RR was in standard linear position in all examined specimens. The length of the LIR at the roof of intercondylar fossa was 0, 631 cm expressed as mean value (SD ± 0, 065). In only one case the LIR at the roof of intercondylar fossa was double–curved, "S" form. In some cases, the LIR at the roof of intercondylar fossa exceeds from linear form to irregularly shaped rough area. Conclusion: Our result showed that LIR is represented rather by straight line than curved. Its part which belongs to lateral femoral condyle is mostly linear. In majority of samples LIR part which belongs to the roof of the intercondylar fossa is also linear. These findings are important in performing anatomic ACL reconstructions, especially if personalized double bundle technique is used.

anterior cruciate ligament; double bundle technique; human knee

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