IC 307-2022: Advanced Techniques for the ACL Surgeon: Meniscal Root and Ramp Tears, Collateral Ligament Injuries, Anterolateral Complex, and Tibial Slope.-Advanced Techniques for the ACL Surgeon: Meniscal Root and Ramp Tears, Collateral Ligament Injuries, Anterolateral Complex, and Tibial Slope. (2/5)

Advanced Techniques for the ACL Surgeon: Meniscal Root and Ramp Tears, Collateral Ligament Injuries, Anterolateral Complex, and Tibial Slope. (2/5)

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Video Transcription

Video Summary

In this video, Dr. Cain discusses tibial slope and its relationship to ACL injuries. Tibial slope refers to how flat or steep the top of the shinbone (proximal tibia) is. Normal slope ranges from 7 to 9 degrees. Different methods are used to measure tibial slope, including the midpoint and circle methods. It is important to get a true lateral view to ensure accurate measurements. Studies have shown that a steeper lateral tibial slope increases the risk of ACL injury by increasing internal rotation and stress on the ACL. Tibial slope also affects the success of ACL grafts, with higher slopes associated with higher rates of graft failure. Tibial slope may also contribute to other knee injuries like root and ramp tears. Correcting tibial slope through osteotomy can be considered in revision ACL surgeries or if the slope is greater than 12 degrees. However, more research is needed to understand the indications and outcomes of slope-correcting osteotomies. Other factors like patient-specific anatomy, graft selection, and concurrent injuries should be taken into consideration.

Asset Caption

Patrick Kane, MD

Keywords

tibial slope

ACL injuries

measurement methods

graft failure

osteotomy

patient-specific anatomy