The anterior cruciate ligament (ACL) is considered the principal stabilizer of the knee joint and it is frequently damaged. Anatomical features are thought to be one the primary unmodifiable risk factors of ACL rupture. It is intimately related to the parameters of the intercondylar notch as well as the tibial slope. Intercondylar notch width (NW), Intercondylar notch width index (NWI), Intercondylar notch angle (INA), Posterior (PTS), lateral (LTS) and medial tibial slopes (MTS) have been linked to higher risk of ACL tear.
AIM OF THE STUDY:
The aim of this work was to assess the relationship of intercondylar notch angle (INA), lateral (LTS) and medial tibial slope (MTS) in cases with anterior cruciate ligament (ACL) injuries using magnetic resonance imaging technique.
PATIENTS AND METHODS:
This study was conducted on eighty subjects; 40 ACL injured patients and 40 normal subjects ‘as a control group' with intact ACL yet presenting with another knee problem, referred to the MRI unit at the Radiodiagnosis department at Alexandria University Hospitals for MR imaging. Intercondylar angle (INA), lateral (LTS) and medial tibial slopes (MTS) were measured. INA is the angle between the femoral axis and Blumensaat line. LTS and MTS are measured between the lines of the tibial condyles and the line perpendicular to the long axis of the tibia.