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Effect of fatigue on tibial rotation after single- and double-bundle anterior cruciate ligament reconstruction: A 3-dimensional kinematic and kinetic matched-group analysis
dc.creator | Hantes, M. E. | en |
dc.creator | Tsarouhas, A. | en |
dc.creator | Giakas, G. | en |
dc.creator | Spiropoulos, G. | en |
dc.creator | Sideris, V. | en |
dc.creator | Christel, P. | en |
dc.creator | Malizos, K. N. | en |
dc.date.accessioned | 2015-11-23T10:29:53Z | |
dc.date.available | 2015-11-23T10:29:53Z | |
dc.date.issued | 2012 | |
dc.identifier | 10.1177/0363546512454413 | |
dc.identifier.issn | 3635465 | |
dc.identifier.uri | http://hdl.handle.net/11615/28421 | |
dc.description.abstract | Background: Fatigue is an extrinsic factor adversely affecting joint proprioception and neuromuscular response, thereby increasing anterior cruciate ligament (ACL) strain and injury risk. The effectiveness of the single- and double-bundle techniques for ACL reconstruction to control residual rotational knee laxity under fatigue has not been examined. Hypothesis: Fatigue results in a significant increase in tibial rotation angles and moments in both ACL-intact and single- and double-bundle ACL-reconstructed knees. The 2 groups with ACL-reconstructed knees will show no significant differences in tibial rotation angles and moments either pre- or postfatigue. Study Design: Controlled laboratory study. Methods: Twenty-four male patients who underwent successful single-bundle (n = 12) or double-bundle (n = 12) ACL reconstructions and 10 matched healthy controls were subjected to a standard lower limb muscle fatigue protocol using an isokinetic dynamometer. Three-dimensional motion analysis was used to measure tibial rotation and rotational knee moments in the preand postfatigue states, during a swinging maneuver on the weightbearing leg from a standing position with the knee in extension. Results: Tibial rotation of the single-bundle group significantly increased postfatigue (prefatigue 22° ± 10° vs 29° ± 15° postfatigue, P = .015). In contrast, the double-bundle group showed similar tibial rotation values pre- and postfatigue (16° ± 6° vs 18° ± 4°, P = .22). The double-bundle group showed a trend toward decreased tibial rotation values pre- and post-fatigue compared with controls (22 ± 4 and 23 ± 4) (P = .065 and .08, respectively). In the prefatigue state, rotational moments (N-mm/Kg) of the single-bundle (339 ± 148) and double-bundle (317 ± 97) groups were significantly lower than that of controls (465 ± 134) (P = .05 and .03, respectively). In the ostfatigue state, an increase was observed in rotational moments of the single-bundle (388 ± 131) and double-bundle (408 ± 187) groups compared with prefatigue values, whereas a decrease was noted in the control group (411 ± 117). Conclusion: Single-bundle ACL-reconstructed knees demonstrate a reduced ability to resist rotational loa s under fatigue. Double-bundle reconstructed knees had significantly better control of tibial rotation when fatigued. However, they demonstrate an excessive, yet not significant, reduction in tibial rotation compared with the intact knee, suggesting a possible overcorrection in rotational laxity. © 2012 The Author(s). | en |
dc.source.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-84866047029&partnerID=40&md5=5b8a4c697649ef1f65494ffcb95e2d99 | |
dc.subject | anterior cruciate ligament | en |
dc.subject | double-bundle | en |
dc.subject | fatigue | en |
dc.subject | tibial rotation | en |
dc.subject | adult | en |
dc.subject | anterior cruciate ligament reconstruction | en |
dc.subject | article | en |
dc.subject | biomechanics | en |
dc.subject | human | en |
dc.subject | injury | en |
dc.subject | joint instability | en |
dc.subject | leg | en |
dc.subject | male | en |
dc.subject | methodology | en |
dc.subject | pathophysiology | en |
dc.subject | rotation | en |
dc.subject | tibia | en |
dc.subject | Humans | en |
dc.subject | Lower Extremity | en |
dc.subject | Young Adult | en |
dc.title | Effect of fatigue on tibial rotation after single- and double-bundle anterior cruciate ligament reconstruction: A 3-dimensional kinematic and kinetic matched-group analysis | en |
dc.type | journalArticle | en |
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