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Louisiana State University Knee and Sports Medicine Fellowship, Lake Charles, Louisiana
Louisiana State University Knee and Sports Medicine Fellowship, Lake Charles, Louisiana
Louisiana State University Knee and Sports Medicine Fellowship, Lake Charles, Louisiana
The purpose of this study was to determine normal rotation of the anterior cruciate ligament and to provide a technique for reproduction of this rotation. Ten fresh- frozen knees were dissected of all soft tissue except for the anterior cruciate ligament. Specimens were se cured in a vise in 60° of flexion. Each tibia was allowed to spin freely on the femur, and rotation was recorded. Anterior cruciate ligament reconstructions, using bone- patellar tendon-bone grafts, were then performed on all specimens using four graft rotations. Each specimen was then tested to assess how the graft twist affected tibial rotation. The average tibial rotation of the normal anterior cruciate ligaments was 55° internally. Previous descriptions of anterior cruciate ligament reconstruc tions have advocated medial or internal rotation of the graft to reproduce normal anatomic rotation of the an terior cruciate ligament. Our cadaveric dissections have demonstrated that the anterior cruciate ligament normally produces internal rotation of the tibia in rela tion to the femur. Reproduction of this anatomic rota tion is accomplished with 90° of lateral rotation of the tibial plug toward the fibula.
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E. Berkson, G. H. Lee, A. Kumar, N. Verma, B. R. Bach Jr, and N. Hallab The Effect of Cyclic Loading on Rotated Bone-Tendon-Bone Anterior Cruciate Ligament Graft Constructs Am. J. Sports Med., September 1, 2006; 34(9): 1442 - 1449. [Abstract] [Full Text] [PDF] |
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N. Verma, M. A. Noerdlinger, N. Hallab, C. A. Bush-Joseph, and B. R. Bach Jr. Effects of Graft Rotation on Initial Biomechanical Failure Characteristics of Bone-Patellar Tendon-Bone Constructs Am. J. Sports Med., September 1, 2003; 31(5): 708 - 713. [Abstract] [Full Text] [PDF] |
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J. Hoher, A. Kanamori, J. Zeminski, F. H. Fu, and S. L-Y. Woo The Position of the Tibia during Graft Fixation Affects Knee Kinematics and Graft Forces for Anterior Cruciate Ligament Reconstruction Am. J. Sports Med., November 1, 2001; 29(6): 771 - 776. [Abstract] [Full Text] [PDF] |
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