Intercondylar roof impingement pressure after anterior cruciate ligament reconstruction in a porcine model

被引：0
作者：
Takanori Iriuchishima
Goro Tajima
Sheila J. M. Ingham
Wei Shen
Takashi Horaguchi
Akiyoshi Saito
Patrick Smolinski
Freddie H. Fu
机构：
[1] University of Pittsburgh Medical Center,Department of Orthopaedic Surgery
[2] University of Pittsburgh,Department of Mechanical Engineering and Material Science
[3] Nihon University School of Medicine,Department of Orthopaedic Surgery
来源：
Knee Surgery, Sports Traumatology, Arthroscopy | 2009年 / 17卷
关键词：
Anterior cruciate ligament; Reconstruction; Anatomical; Double bundle; Impingement; Pressure;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Anterior cruciate ligament (ACL) graft impingement against the intercondylar roof has been postulated, but not thoroughly investigated. The roof impingement pressure changes with different tibial and femoral tunnel positions in ACL reconstruction. Anterior tibial translation is also affected by the tunnel positions of ACL reconstruction. The study design included a controlled laboratory study. In 15 pig knees, the impingement pressure between ACL and intercondylar roof was measured using pressure sensitive film before and after ACL single bundle reconstruction. ACL reconstructions were performed in each knee with two different tibial and femoral tunnel position combinations: (1) tibial antero-medial (AM) tunnel to femoral AM tunnel (AM to AM) and (2) tibial postero-lateral (PL) tunnel to femoral High-AM tunnel (PL to High-AM). Anterior tibial translation (ATT) was evaluated after each ACL reconstruction using robotic/universal force-moment sensor testing system. Neither the AM to AM nor the PL to High-AM ACL reconstruction groups showed significant difference when compared with intact ACL in roof impingement pressure. The AM to AM group had a significantly higher failure load than PL to High-AM group. This study showed how different tunnel placements affect the ACL-roof impingement pressure and anterior-posterior laxity in ACL reconstruction. Anatomical ACL reconstruction does not cause roof impingement and it has a biomechanical advantage in ATT when compared with non-anatomical ACL reconstructions in the pig knee. There is no intercondylar roof impingement after anatomical single bundle ACL reconstruction.
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页码：590 / 594
页数：4
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