PMID: 11912094Mar 26, 2002Paper

The effect of injury to the posterolateral structures of the knee on force in a posterior cruciate ligament graft: a biomechanical study

The American Journal of Sports Medicine
Robert F LaPradeJack L Lewis

Abstract

To determine whether untreated grade 3 posterolateral knee injuries contribute to a significant increase in force on a posterior cruciate ligament reconstruction graft, we measured the force on the graft during joint loading of a posterior cruciate ligament-reconstructed knee with otherwise intact structures and then selectively cut the popliteofibular ligament, popliteus tendon, and the fibular collateral ligament. A posterior cruciate ligament reconstruction was performed in eight fresh-frozen cadaveric knees. One end of the graft was fixed to a tensioning jig with a load cell used to measure force in the graft as loads were applied to the knee. The force on the graft was significantly higher with the posterolateral structures cut during varus loading at 30 degrees, 60 degrees, and 90 degrees of flexion than it was in the same joint under the same loading conditions but with the posterolateral structures intact. Additionally, coupled loading of posterior drawer force and external tibial torque at 30 degrees, 60 degrees, and 90 degrees significantly increased force on the graft with the posterolateral structures cut. There was no significant increase in force on the graft under any condition with a posterior force, valgus forc...Continue Reading

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Citations

Oct 21, 2004·The American Journal of Sports Medicine·Robert F LaPradeFred A Wentorf
Apr 14, 2005·The American Journal of Sports Medicine·James P StannardDavid A Volgas
Jul 9, 2005·The American Journal of Sports Medicine·Robert F LaPradeKeith Meister
Jan 26, 2006·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Robert F LaPradeErik J Olson
Dec 1, 2006·Sports Medicine and Arthroscopy Review·Anthony R SanchezRobert F LaPrade
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Jul 3, 2010·The American Journal of Sports Medicine·Robert F LaPradeChad J Griffith
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Dec 30, 2014·Sports Medicine and Arthroscopy Review·Evan W JamesRobert F LaPrade
Sep 25, 2015·Revista Brasileira De Ortopedia·Bernardo CrespoRobert F LaPrade
Aug 12, 2015·The American Journal of Sports Medicine·Andrew G GeeslinRobert F LaPrade
Jul 30, 2016·The American Journal of Sports Medicine·Gilbert MoatsheRobert F LaPrade
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Aug 12, 2015·The American Journal of Sports Medicine·Samuel G MoultonRobert F LaPrade
Feb 5, 2016·The American Journal of Sports Medicine·Kyoung Ho YoonDae Hyun Tak
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