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dc.creatorTsarouhas, A.en
dc.creatorGiakas, G.en
dc.creatorMalizos, K. N.en
dc.creatorSpiropoulos, G.en
dc.creatorSideris, V.en
dc.creatorKoutedakis, Y.en
dc.creatorHantes, M. E.en
dc.date.accessioned2015-11-23T10:50:56Z
dc.date.available2015-11-23T10:50:56Z
dc.date.issued2015
dc.identifier10.1016/j.arthro.2015.02.028
dc.identifier.issn0749-8063
dc.identifier.urihttp://hdl.handle.net/11615/33813
dc.description.abstractPurpose: To examine differences in anterior tibial translation in 3 groups: single-bundle anterior cruciate ligament (ACL)-reconstructed, double-bundle ACL-reconstructed, and ACL-intact knees under gradual dynamic quadriceps muscle activation. Methods: Thirty male patients underwent successful single-bundle (n = 15) and double-bundle (n = 15) ACL reconstructions; 15 healthy controls were included in the study. Anterior tibial translation was assessed at 30 degrees of knee flexion in the resting position (0% quadriceps activation) and under 50% and 100% of maximum quadriceps concentric contraction using an isokinetic dynamometer with the KT-2000 arthrometer securely attached to the participants' knees. Results: The 2 ACL-reconstructed groups were similar regarding International Knee Documentation Committee (IKDC), Knee Injury and Osteoarthritis Score (KOOS), Tegner, and Lysholm scores and preliminary isokinetic evaluation (P = .38). Quadriceps activation significantly affected anterior tibial translation (P = .001, alpha = 0.98). In all 3 study groups, anterior tibial translation was significantly higher under 100% quadriceps activation compared with 0% contraction (P = .01) and 50% quadriceps activation (P = .047). There were no between-group differences in anterior tibial translation with 0%, 50%, or 100% quadriceps activation (P = .46). Conclusions: Under quadriceps muscle activation, anteroposterior knee laxity in ACL-intact and ACL-reconstructed knees is gradually increased. Single-bundle and double-bundle ACL-reconstructed knees show a similar increase in anterior tibial translation under gradual quadriceps contraction. When comparing different ACL reconstruction techniques in the experimental setting, dynamic, in addition to static, testing is advised to reach a comprehensive assessment of anteroposterior knee stability.en
dc.sourceArthroscopy-the Journal of Arthroscopic and Related Surgeryen
dc.source.uri<Go to ISI>://WOS:000357524100013
dc.subjectIN-SITU FORCESen
dc.subjectKNEE FLEXIONen
dc.subjectKINEMATICSen
dc.subjectROTATIONen
dc.subjectVITROen
dc.subjectMETAANALYSISen
dc.subjectOrthopedicsen
dc.subjectSurgeryen
dc.titleDynamic Effect of Quadriceps Muscle Activation on Anterior Tibial Translation After Single-Bundle and Double-Bundle Anterior Cruciate Ligament Reconstructionen
dc.typejournalArticleen


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