Femoral tunnel widening after double-bundle anterior cruciate ligament reconstruction with hamstring autograft produces a small shift of the tunnel position in the anterior and distal direction: Computed tomography–based retrospective cohort analysis
Arthroscopy Apr 16, 2021
Lee DK, Kim JH, Lee SS, et al. - This study was carried out to ascertain if the femoral tunnel position remains in an anatomical footprint after tunnel widening and shifting. In this retrospective cohort study, researchers recruited a total of 56 patients who had undergone unilateral double-bundle anterior cruciate ligament reconstruction with hamstring autograft and performed computed tomography scan assessment at the time of 5 days and 1 year postoperatively. They reconstructed three-dimensional models of the femur and femoral tunnels from computed tomography scan data. This study’s findings demonstrate that tunnel widening shifts the tunnel position to the anterior and distal direction, which could change the initial tunnel position. However, after tunnel widening and shifting, the majority of tunnel positions remained in the anatomical position.
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