The Experts below are selected from a list of 261 Experts worldwide ranked by ideXlab platform
Laszlo Rode - One of the best experts on this subject based on the ideXlab platform.
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the patella and Tibial Condyle position after combined and after closing wedge high Tibial osteotomy
Knee Surgery Sports Traumatology Arthroscopy, 2007Co-Authors: Miklos Papp, Zoltan Csernatony, Sandor Kazai, Zoltan Karolyi, Laszlo RodeAbstract:High Tibial osteotomy changes the patella and Tibial Condyle position, which makes the subsequent total knee replacement technically demanding. From 1 January 1993 to 31 December 2000, combined osteotomy [After the first osteotomy made 2 cm distally to the joint line, a bone wedge is removed based laterally. Its tip ends at the center of the Tibial Condyle (half bone wedge). The distal part of the tibia is placed into the valgus position and the half bone wedge is placed into the gap opened medially.] was performed on 103 knees and closing wedge osteotomy was performed on 47 consecutive knees. Eighty combined (group A) and 41 closing wedge (group B) osteotomy were studied. All knees were assessed radiologically before surgery, in the 10th postoperative week, in the 12th postoperative month and at the time of the final follow-up (in group A—66.15 months, in group B—66.61 months). We examined the change of the femoroTibial angle, of the patellar height according to the method of Insall and Salvati, of the Tibial slope angle according to the method of Bonnin, of the Tibial condylar offset according to the method of Yoshida and of the distance between the lateral Tibial plateau and the top of the fibular head. In group A and B, the recurrence of the varus deformity was not noted and valgus alignment did not increase in any case. In group-A, the Insall–Salvati ratio remained unchanged in 65% of knees. The Tibial slope angle decreased in both groups. There was correlation between the change of the Tibial condylar offset and the angle of the correction in both groups. There was correlation between the change of the distance between the lateral Tibial plateau and the top of the fibular head. After combined osteotomy, the transposition of the Tibial Condyle and the decrease of the distance between the lateral Tibial plateau and the top of the fibular head was less than after closing wedge osteotomy, although the average angle of correction was more after combined osteotomy (11.835°), than after closing wedge osteotomy (9.465°). Theoretically, the recurrence of the varus deformity, the increase of the valgus alignment and (in majority of cases) the shortening of the patellar tendon do not compromise the likelihood of successful conversion to the subsequent total knee replacement, either after combined or after closing wedge osteotomy. The combined osteotomy does not lead to considerable transposition of the Tibial Condyle and to considerable lateral Tibial bone loss; therefore, theoretically, the combined osteotomy does not impair the subsequent total knee replacement.
Pascal Schai - One of the best experts on this subject based on the ideXlab platform.
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Is there an influence of the Tibial slope of the lateral Condyle on the ACL lesion?
Knee Surgery Sports Traumatology Arthroscopy, 2008Co-Authors: Lazar Stijak, Richard F. Herzog, Pascal SchaiAbstract: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
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is there an influence of the Tibial slope of the lateral Condyle on the acl lesion a case control study
Knee Surgery Sports Traumatology Arthroscopy, 2008Co-Authors: Lazar Stijak, Richard Herzog, Pascal SchaiAbstract: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.
Lazar Stijak - One of the best experts on this subject based on the ideXlab platform.
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Uloga zadnjeg tibijalnog nagiba u rupturi prednje ukrštene veze The role-share-influence of the posterior Tibial slope on rupture of the anterior cruciate ligament
2020Co-Authors: Originalni ˝ Lanak, Lazar Stijak, Zoran Blagojevi, Marko Kadija, Gordana Stankovi, Vuk Djuleji, Darko Milovanovi, Branislav Filipovi, Niko MiljaniAbstract:Background/Aim. Posterior Tibial slope is one of the most citated factors wich cause rupture of the anterior cruciate ligament (ACL). The aim of this study was to determine the association of a greather posterior Tibial slope on the lateral Condyle, that is a lesser posterior Tibial slope on the medial Condyle, with ACL rupture. Methods. The patients were divided into two groups. The study group included the patients with chronic instability of the knee besause of a previous rupture of ACL. The control group included the patients with knee lesion, but without ACL rupture. Posterior Tibial slope measuring was performed by sagittal MR slices supported by lateral radiograph of the knee. We measured posterior Tibial slope on lateral and medial Condyles of the tibia. Using these values we calculated an average posterior Tibial slope as well as the difference between slopes on lateral and medial Condyles. Results. Patients with ACL rupture have highly statistically significantly greather posterior Tibial slope (p < 0.01) on lateral Tibial Condyle (7.1° : 4.5°) as well as statistically significantly lesser posterior Tibial slope (p < 0.05) on medial Tibial Condyle (5.0° : 6.6°) than patients with intact ACL. Conclusion. Great posterior Tibial slope on lateral Tibial Condyle associated with the small posterior Tibial slope on the medial Tibial Condyle, that is a positive differentce between lateral and medial Tibial Condyles are factors wich may cause ACL rupture.
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The role-share-influence of the posterior Tibial slope on rupture of the anterior cruciate ligament
Vojnosanitetski Pregled, 2012Co-Authors: Lazar Stijak, Marko Kadija, Zoran Blagojevic, Gordana Stankovic, Vuk Djulejić, Darko Milovanovic, Branislav FilipovićAbstract:Background/Aim. Posterior Tibial slope is one of the most citated factors wich cause rupture of the anterior cruciate ligament (ACL). The aim of this study was to determine the association of a greather posterior Tibial slope on the lateral Condyle, that is a lesser posterior Tibial slope on the medial Condyle, with ACL rupture. Methods. The patients were divided into two groups. The study group included the patients with chronic instability of the knee besause of a previous rupture of ACL. The control group included the patients with knee lesion, but without ACL rupture. Posterior Tibial slope measuring was performed by sagittal MR slices supported by lateral radiograph of the knee. We measured posterior Tibial slope on lateral and medial Condyles of the tibia. Using these values we calculated an average posterior Tibial slope as well as the difference between slopes on lateral and medial Condyles. Results. Patients with ACL rupture have highly statistically significantly greather posterior Tibial slope (p < 0.01) on lateral Tibial Condyle (7.1° : 4.5°) as well as statistically significantly lesser posterior Tibial slope (p < 0.05) on medial Tibial Condyle (5.0° : 6.6°) than patients with intact ACL. Conclusion. Great posterior Tibial slope on lateral Tibial Condyle associated with the small posterior Tibial slope on the medial Tibial Condyle, that is a positive differentce between lateral and medial Tibial Condyles are factors wich may cause ACL rupture.
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Is there an influence of the Tibial slope of the lateral Condyle on the ACL lesion?
Knee Surgery Sports Traumatology Arthroscopy, 2008Co-Authors: Lazar Stijak, Richard F. Herzog, Pascal SchaiAbstract: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
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is there an influence of the Tibial slope of the lateral Condyle on the acl lesion a case control study
Knee Surgery Sports Traumatology Arthroscopy, 2008Co-Authors: Lazar Stijak, Richard Herzog, Pascal SchaiAbstract: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.
Miklos Papp - One of the best experts on this subject based on the ideXlab platform.
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the patella and Tibial Condyle position after combined and after closing wedge high Tibial osteotomy
Knee Surgery Sports Traumatology Arthroscopy, 2007Co-Authors: Miklos Papp, Zoltan Csernatony, Sandor Kazai, Zoltan Karolyi, Laszlo RodeAbstract:High Tibial osteotomy changes the patella and Tibial Condyle position, which makes the subsequent total knee replacement technically demanding. From 1 January 1993 to 31 December 2000, combined osteotomy [After the first osteotomy made 2 cm distally to the joint line, a bone wedge is removed based laterally. Its tip ends at the center of the Tibial Condyle (half bone wedge). The distal part of the tibia is placed into the valgus position and the half bone wedge is placed into the gap opened medially.] was performed on 103 knees and closing wedge osteotomy was performed on 47 consecutive knees. Eighty combined (group A) and 41 closing wedge (group B) osteotomy were studied. All knees were assessed radiologically before surgery, in the 10th postoperative week, in the 12th postoperative month and at the time of the final follow-up (in group A—66.15 months, in group B—66.61 months). We examined the change of the femoroTibial angle, of the patellar height according to the method of Insall and Salvati, of the Tibial slope angle according to the method of Bonnin, of the Tibial condylar offset according to the method of Yoshida and of the distance between the lateral Tibial plateau and the top of the fibular head. In group A and B, the recurrence of the varus deformity was not noted and valgus alignment did not increase in any case. In group-A, the Insall–Salvati ratio remained unchanged in 65% of knees. The Tibial slope angle decreased in both groups. There was correlation between the change of the Tibial condylar offset and the angle of the correction in both groups. There was correlation between the change of the distance between the lateral Tibial plateau and the top of the fibular head. After combined osteotomy, the transposition of the Tibial Condyle and the decrease of the distance between the lateral Tibial plateau and the top of the fibular head was less than after closing wedge osteotomy, although the average angle of correction was more after combined osteotomy (11.835°), than after closing wedge osteotomy (9.465°). Theoretically, the recurrence of the varus deformity, the increase of the valgus alignment and (in majority of cases) the shortening of the patellar tendon do not compromise the likelihood of successful conversion to the subsequent total knee replacement, either after combined or after closing wedge osteotomy. The combined osteotomy does not lead to considerable transposition of the Tibial Condyle and to considerable lateral Tibial bone loss; therefore, theoretically, the combined osteotomy does not impair the subsequent total knee replacement.
Seppo Honkonen - One of the best experts on this subject based on the ideXlab platform.
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indications for surgical treatment of Tibial Condyle fractures
Clinical Orthopaedics and Related Research, 1994Co-Authors: Seppo HonkonenAbstract:Abstract The residual radioanatomic changes influencing the functional, subjective, and clinical outcome of 131 Tibial Condyle fractures were studied. Clinical function was found to deteriorate rapidly with increasing values of residual medial tilt of the Tibial plateau, whereas lateral tilt of the plateau was well tolerated up to 5 degrees. Articular step-off up to 3 mm and condylar widening up to 5 mm had no adverse effects. Seventy percent of knees with moderate or severe instability were functionally unacceptable. It was concluded that a medial unicondylar fracture with any displacement, and all medially tilted bicondylar fractures, should be operated upon. In fracture of the lateral Condyle, open reduction and internal fixation is indicated when lateral tilt or valgus malalignment exceeds 5 degrees, articular step-off exceeds 3 mm, or condylar widening exceeds 5 mm. The same limits apply to laterally tilted bicondylar fractures, provided that the medial Condyle is undisplaced. Any displacement seen in the axial bicondylar fracture is an indication for surgical treatment. If there is any mediolateral instability in the extended knee joint after rigid internal fixation, repair of a collateral ligament should be considered. An avulsed anterior cruciate ligament should be fixed, if pathologic laxity exists, but the torn ligament can be ignored and reconstructed later if needed.
