caa a22 4500 605455856 CHVBK 20210128100214.0 cr unu---uuuuu 210128e20150101xx s 000 0 eng 10.1007/s00167-014-3241-9 doi (NATIONALLICENCE)springer-10.1007/s00167-014-3241-9 The effect of medial meniscal horn injury on knee stability [Elektronische Daten] [Lianxu Chen, Monica Linde-Rosen, Sun Hwang, Jingbin Zhou, Qiang Xie, Patrick Smolinski, Freddie Fu] Purpose: This study investigated the effect of damage of the posterior and anterior horns of the medial meniscus on knee stability. Methods: Twenty fresh-frozen porcine knees were divided into two groups (anterior horn and posterior horn injury). Each group was tested in three states: intact medial meniscus, posterior or anterior horn of medial meniscus resection and total medial meniscectomy. A robotic testing system was used to test anterior tibial translation (ATT) at 30° (full extension), 60° and 90° of knee flexion with an external anterior tibial load of 89N, internal rotation (IR) and external rotation (ER) at 30° and 60° of knee flexion under a 4Nm tibial rotation torque. Results: In response to an IR torque, there was a significant difference between the state of intact medial meniscus and anterior and posterior horn damage, except for anterior horn resection at 60° of knee flexion. In response to an ER torque, there were no significant differences between the state of intact meniscus and horn damage except for anterior horn resection at 30° of knee flexion. Meniscal damage had no significant effect on ATT. Conclusion: The results indicated that the posterior horn was more important in controlling the IR stability than the anterior horn with knee flexion, and the anterior horn was more important in controlling the ER stability than the posterior horn at full knee extension in the anterior cruciate ligament-intact knee. These findings further the understanding of the mechanisms, the prevention of injuries and rehabilitation of meniscal horn injury in clinical practice. European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA), 2014 Medial meniscal horn nationallicence Internal rotation nationallicence External rotation nationallicence Porcine knee nationallicence Chen Lianxu Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut Linde-Rosen Monica Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut Hwang Sun Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut Zhou Jingbin Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut Xie Qiang Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut Smolinski Patrick Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut Fu Freddie Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/1(2015-01-01), 126-131 0942-2056 23:1<126 2015 23 167 https://doi.org/10.1007/s00167-014-3241-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00167-014-3241-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chen Lianxu Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut NATIONALLICENCE 700 1- Linde-Rosen Monica Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut NATIONALLICENCE 700 1- Hwang Sun Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut NATIONALLICENCE 700 1- Zhou Jingbin Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut NATIONALLICENCE 700 1- Xie Qiang Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut NATIONALLICENCE 700 1- Smolinski Patrick Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut NATIONALLICENCE 700 1- Fu Freddie Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, USA aut NATIONALLICENCE 773 0- Knee Surgery, Sports Traumatology, Arthroscopy Springer Berlin Heidelberg 23/1(2015-01-01), 126-131 0942-2056 23:1<126 2015 23 167