Central femoral tunnel placement can reduce stress and strain around bone tunnels and graft more than anteromedial femoral tunnel in anterior cruciate ligament reconstruction

Cheng, Rongshan; Wang, Huizhi; Dimitriou, Dimitris; Jiang, Ziang; Cheng, Cheng-Kung; Tsai, Tsung-Yuan

doi:10.5167/uzh-226817

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Cheng, R., Wang, H., Dimitriou, D., Jiang, Z., Cheng, C.-K., & Tsai, T.-Y. (2022). Central femoral tunnel placement can reduce stress and strain around bone tunnels and graft more than anteromedial femoral tunnel in anterior cruciate ligament reconstruction. International Journal for Numerical Methods in Biomedical Engineering, 38, e3590. https://doi.org/10.1002/cnm.3590

Abstract

The present study investigated the effects of anteromedial (AM) and central femoral footprint placement on stress and strain distribution around the femoral and tibial tunnel and graft following anterior cruciate ligament reconstruction (ACLR). A three-dimensional (3D) reconstructed knee model was validated and used for simulating ACLR by finite element analysis. A combined loading during normal human walking was applied to the knee models using different anatomic femoral tunnel placement at 20° knee flexion. The results of von Mises