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dc.contributor.authorH. Wangen_US
dc.contributor.authorK. J. Simpsonen_US
dc.contributor.authorS. Chamnongkichen_US
dc.contributor.authorT. Kinseyen_US
dc.contributor.authorO. M. Mahoneyen_US
dc.date.accessioned2018-09-11T09:21:59Z-
dc.date.available2018-09-11T09:21:59Z-
dc.date.issued2005-05-01en_US
dc.identifier.issn02680033en_US
dc.identifier.other2-s2.0-14344264918en_US
dc.identifier.other10.1016/j.clinbiomech.2004.12.003en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=14344264918&origin=inwarden_US
dc.identifier.urihttp://cmuir.cmu.ac.th/jspui/handle/6653943832/62108-
dc.description.abstractBackground. Compared to the design of a traditional multi-axis total knee arthroplasty, the single-axis arthroplasty studied has a fixed flexion/extension center of rotation in the femoral component. The influence of this characteristic on functional daily activity, i.e., stand-to-sit, is not well understood. The purpose of this study was to investigate the effect of different arthroplasty designs on knee kinematic and lower limb muscular activation for the stand-to-sit movement. Methods. Sixteen unilateral, posterior-stabilized knee arthroplasty participants (8 single-axis and 8 multi-axis) with excellent Knee Society scores performed 4 trials of the stand-to-sit test. Three-dimensional video analysis of whole body and joint kinematics and electromyography analysis of quadriceps and hamstrings were conducted. One-way ANOVAs were used for statistical analyses (α = 0.05). Findings. The multi-axis group showed some functional adaptations while sitting down. The single-axis group exhibited less arthroplasty limb quadriceps electromyography and hamstring co-activation electromyography than the multi-axis group. For the arthroplasty limb, single-axis demonstrated less abduction angular displacement and reached peak abduction earlier than the multi-axis arthroplasty limb. The estimated effect size for this study was 0.196. Interpretation. The single-axis design requires less eccentric knee extensor muscle activation and exhibits greater medio-lateral stability than the multi-axis designs. Findings from this study could provide useful information to orthopedic knee surgeons and rehabilitative specialists. © 2004 Elsevier Ltd. All rights reserved.en_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.subjectMedicineen_US
dc.titleA biomechanical comparison between the single-axis and multi-axis total knee arthroplasty systems for the stand-to-sit movementen_US
dc.typeJournalen_US
article.title.sourcetitleClinical Biomechanicsen_US
article.volume20en_US
article.stream.affiliationsQueens College, City University of New Yorken_US
article.stream.affiliationsThe University of Georgiaen_US
article.stream.affiliationsChiang Mai Universityen_US
article.stream.affiliationsAthens Orthopedic Clinicen_US
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