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dc.contributor.authorJohnson, Joshua E.
dc.contributor.authorLee, Phil
dc.contributor.authorMcIff, Terence E.
dc.contributor.authorToby, E. Bruce
dc.contributor.authorFischer, Kenneth J.
dc.date.accessioned2017-03-17T19:42:20Z
dc.date.available2017-03-17T19:42:20Z
dc.date.issued2013-04-22
dc.identifier.citationJohnson, Joshua E., Phil Lee, Terence E. Mciff, E. Bruce Toby, and Kenneth J. Fischer. "Effectiveness of Surgical Reconstruction to Restore Radiocarpal Joint Mechanics after Scapholunate Ligament Injury: An in Vivo Modeling Study." Journal of Biomechanics 46.9 (2013): 1548-553.en_US
dc.identifier.urihttp://hdl.handle.net/1808/23435
dc.description.abstractDisruption of the scapholunate ligament can cause a loss of normal scapholunate mechanics and eventually lead to osteoarthritis. Surgical reconstruction attempts to restore scapholunate relationship and shows improvement in functional outcomes, but postoperative effectiveness in restoring normal radiocarpal mechanics still remains a question. The objective of this study was to investigate the benefits of surgical repair by observing changes in contact mechanics on the cartilage surface before and after surgical treatment. Six patients with unilateral scapholunate dissociation were enrolled in the study, and displacement driven magnetic resonance image based-surface contact modeling was used to investigate normal, injured and postoperative radiocarpal mechanics. Model geometry was acquired from images of wrists taken in a relaxed position. Kinematics were acquired from image registration between the relaxed images, and images taken during functional loading. Results showed a trend for increase in radiocarpal contact parameters with injury. Peak and mean contact pressures significantly decreased after surgery in the radiolunate articulation and there were no significant differences between normal and postoperative wrists. Results indicated surgical repair improves contact mechanics after injury and that contact mechanics can be surgically restored to be similar to normal. This study provides novel contact mechanics data on the effects of surgical repair after scapholunate ligament injury. With further work, it may be possible to more effectively differentiate between treatments and degenerative changes based on in vivo contact mechanics data.en_US
dc.publisherElsevieren_US
dc.rightsThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subjectScapholunate dissociationen_US
dc.subjectModelingen_US
dc.subjectContact pressureen_US
dc.subjectMagnetic resonance imagingen_US
dc.subjectPosttraumatic osteoarthritisen_US
dc.titleEFFECTIVENESS OF SURGICAL RECONSTRUCTION TO RESTORE RADIOCARPAL JOINT MECHANICS AFTER SCAPHOLUNATE LIGAMENT INJURY. AN IN VIVO MODELING STUDYen_US
dc.typeArticleen_US
kusw.kuauthorFischer, Kenneth J.
kusw.kudepartmentMechanical Engineeringen_US
dc.identifier.doi10.1016/j.jbiomech.2013.03.020en_US
kusw.oaversionScholarly/refereed, author accepted manuscripten_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccess


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This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Except where otherwise noted, this item's license is described as: This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.