Tibial Tubercle–Sparing Anterior Closing Wedge Osteotomy With Cross-Screw Fixation to Correct Pathologic Posterior Tibial Slope

Abstract

Anterior cruciate ligament reconstruction failure remains a commonly seen outcome despite advances in technique and graft options. Recent studies have shown that the declination of the tibial plateau slope in the sagittal plane affects the in situ stress on the anterior cruciate ligament. The native posterior tibial slope has been described to range from 7° to 10°. However, several authors have suggested that a posterior tibial slope >12° should be considered pathologic. Given the recent evidence, our institution has begun performing a tibial tubercle–sparing anterior closing wedge proximal tibial osteotomy with cross screw fixation to decrease sagittal plane tibial slope.