Effect of fixation angle and graft tension in double-bundle anterior cruciate ligament reconstruction on knee biomechanics

Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA
Yusuke SasakiFreddie H Fu

Abstract

To compare the effect of graft fixation angle and tension in double-bundle anterior cruciate ligament (ACL) reconstruction on knee biomechanics. Fourteen cadaver knees were tested using a robotic system under two loadings: (1) an 89-N anterior tibial load (ATL) at full extension (FE), 15°, 30°, 45°, 60°, and 90°, and (2) combined 7 N m valgus and 5 N m internal tibial torques (simulated pivot-shift test) at FE, 15° and 30°. Four graft fixation angles and tensions were used for the anteromedial (AM) and posterolateral (PL) bundles, respectively: (Recon 1) 30°/20N and FE/20N, (Recon 2) 30°/30N and FE/10N, (Recon 3) 45°/20N and 15°/20N, and (Recon 4) 45°/30N and 15°/10N. All fixation protocols closely restored the intact knee kinematics under ATL and simulated pivot-shift loading. For the AM bundle under ATL, the in situ force (ISF) with Recon 3 at the FE was significantly lower than that of the intact knee. For the PL bundle under ATL, the ISF with Recon 3 at the FE, 15° and 30° was significantly higher than that of the intact knee. In PL bundle under simulated pivot-shift loading, the ISF with Recon 1 and Recon 2 at FE was lower and the ISF of the PL bundle with Recon 3 at the 15° was higher than that of the intact knee. The AM-...Continue Reading

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Citations

Sep 15, 2016·Current Reviews in Musculoskeletal Medicine·Jan-Hendrik NaendrupVolker Musahl
Mar 1, 2017·The Journal of Bone and Joint Surgery. American Volume·Matthew J KraeutlerJonathan T Bravman
Nov 7, 2019·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Yongtao MaoCarola F van Eck
Apr 28, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Weimin ZhuFreddie H Fu
May 26, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Junjun ZhuFreddie H Fu
Apr 21, 2017·Archives of Orthopaedic and Trauma Surgery·B H DrewsL Dürselen
Jun 25, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Libin ZhengFreddie H Fu
Apr 25, 2018·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Laura MorrisonOlufemi R Ayeni
Jul 28, 2020·Arthroscopy Techniques·Weninger PatrickFeichtinger Xaver
Sep 10, 2021·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Junjun ZhuPatrick Smolinski

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