Biomechanical comparison of figure-of-8 versus cylindrical tibial inlay constructs for arthroscopic posterior cruciate ligament reconstruction

Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association
Ramon A Ruberte ThieleJon K Sekiya

Abstract

To determine the biomechanical strength of Achilles tendon allografts with 2 different bone plug configurations as prepared for arthroscopic posterior cruciate ligament reconstruction when fixed as tibial inlay constructs. Nine matched pairs of cadaveric tibias were reconstructed by a standardized tibial inlay technique by use of either a cylindrical bone plug (12 mm in diameter) or a figure-of-8 bone plug (12 x 18 mm). Constructs were subjected to cyclic tensile loading followed by load to failure. The statistical analysis consisted of paired t tests with significance set at P < .05. No significant differences were found in yield load, ultimate load, stiffness, load at 5 mm, and total cyclic displacement between the groups. Although both constructs showed equivalent biomechanical properties, the tendons of the cylindrical bone plugs failed predominantly by shear off the bone compared with the figure-of-8 plugs, which failed by the sutures tearing through the tibial plateau. Tibial constructs with cylindrical and figure-of-8 bone plugs as prepared for use in arthroscopic posterior cruciate ligament reconstruction have comparable immediate biomechanical stability when fixed by a tibial inlay technique in a cadaveric model. Cylin...Continue Reading

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Citations

Jun 23, 2011·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·M EttingerM Jagodzinski
Jul 23, 2013·Arthroscopy Techniques·Gerard G Adler
Jul 4, 2013·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·M EttingerM Jagodzinski
Jul 23, 2014·Clinical Orthopaedics and Related Research·Alexander E WeberJon K Sekiya
Aug 13, 2011·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Hemang B Panchal, Jon K Sekiya
Apr 7, 2010·Arthroscopy : the Journal of Arthroscopic & Related Surgery : Official Publication of the Arthroscopy Association of North America and the International Arthroscopy Association·Karen M BovidJon K Sekiya
Aug 2, 2011·The American Journal of Sports Medicine·James E VoosThomas L Wickiewicz
Sep 1, 2018·Poultry Science·P DvořákV Rulík

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