Browsing by Author "Herzog, Richard F. (57197909406)"

This study examines the effect of the tibial slope on the anterior cruciate ligament lesion (separately on the lateral and medial tibial condyle). The study consisted of 33 matched pairs of patients divided into two groups: an examined group with a diagnosed ACL lesion, and a control group with diagnosed patellofemoral pain. The patients were matched on the basis of four attributes: age, sex, type of lesion (whether it was profession-related), and whether the lesion was left- or right-sided. Measurements were carried out by radiography and MRI. In the examined group, the lateral tibial plateau was significantly greater than in the control group (P < 0.001), and the medial tibial plateau had lower tibial slope values than the control group; however, the difference was not statistically significant (P = 0.066). In both groups, the difference between the slopes on the lateral and medial plateaus was statistically significant (P < 0.001). In relation to ACL intact patients, population with ACL rupture have greater tibial slope of the lateral condyle. The greater tibial slope of the lateral tibial plateau may be the factor that leads to the injury of the anterior cruciate ligament. Compared to the medial plateau, the population with ACL rupture have a greater tibial slope on the lateral plateau, while the population of the intact ACL have greater tibial slope on the medial plateau. The tibial slope of the medial and lateral condyle should be compared separately because the values obtained from the two sets of data were different, revealing apparently opposing effects on the ACL lesion. © 2007 Springer-Verlag.

The position of the anterior cruciate ligament (ACL) is one of the anatomical factors that lead to its injury. We evaluated 66 patients divided in two groups: 33 patients in the examined group with a diagnosed ACL lesion, and 33 patients in the control group with diagnosed patellofemoral pain. The patients were matched by age, sex, type of lesion (whether it was profession related) and whether the lesion was left or right sided. Measurements were carried out by radiography and MRI. The following positions of angles were measured: the angle of ACL in sagittal and frontal plane, the angle of the inner side of lateral condyle in frontal and horizontal plane and the angle between the course of ACL and the inner side of lateral condyle. In our study there is a significant difference (P < 0.05) in the degree of the ACL angles in the frontal plane between the examined group (74.5°) and the control group (70.6°). Also, there was a significant difference (P < 0.05) in the degree of the ACL angle in the sagittal plane between the examined group (48°) and the control (50.4°). The angle between the inner side of the lateral condyle of the femur and the ACL of the examined group (32.9°) differs significantly (P < 0.01) from the same angle of the control group (40.6°). According to the results of our study it appears that the increment of the ACL angle in the frontal plane, the decrement of the ACL angle in the sagittal plane and the decrement of the angle between the ACL and the inner side of the lateral condyle in the frontal plane are associated with the rupture of the ACL. © Springer-Verlag 2009.