Biomechanical properties of the scapholunate ligament and the importance of its portions in the capitate intrusion injury

Nikolopoulos, FV; Apergis, EP; Poulilios, AD; Papagelopoulos, PJ; Zoubos, AV; Kefalas, VA

dc.contributor.author	Nikolopoulos, FV	en
dc.contributor.author	Apergis, EP	en
dc.contributor.author	Poulilios, AD	en
dc.contributor.author	Papagelopoulos, PJ	en
dc.contributor.author	Zoubos, AV	en
dc.contributor.author	Kefalas, VA	en
dc.date.accessioned	2014-03-01T02:01:46Z
dc.date.available	2014-03-01T02:01:46Z
dc.date.issued	2011	en
dc.identifier.issn	02680033	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29249
dc.subject	Displacement	en
dc.subject	Dorsal	en
dc.subject	Intermediate	en
dc.subject	Ligament	en
dc.subject	Load	en
dc.subject	Palmar	en
dc.subject	Scapholunate	en
dc.subject	Stiffness	en
dc.subject.other	Displacement	en
dc.subject.other	Dorsal	en
dc.subject.other	Intermediate	en
dc.subject.other	Load	en
dc.subject.other	Palmar	en
dc.subject.other	Scapholunate	en
dc.subject.other	Repair	en
dc.subject.other	Stiffness	en
dc.subject.other	Surgery	en
dc.subject.other	Biomechanics	en
dc.subject.other	adult	en
dc.subject.other	aged	en
dc.subject.other	article	en
dc.subject.other	biomechanics	en
dc.subject.other	capitate bone	en
dc.subject.other	capitate intrusion injury	en
dc.subject.other	female	en
dc.subject.other	force	en
dc.subject.other	human	en
dc.subject.other	human tissue	en
dc.subject.other	ligament	en
dc.subject.other	ligament surgery	en
dc.subject.other	male	en
dc.subject.other	mechanical torsion	en
dc.subject.other	musculoskeletal system parameters	en
dc.subject.other	pilot study	en
dc.subject.other	priority journal	en
dc.subject.other	scapholunate ligament	en
dc.subject.other	tension	en
dc.subject.other	wrist	en
dc.subject.other	wrist injury	en
dc.subject.other	Aged	en
dc.subject.other	Aged, 80 and over	en
dc.subject.other	Biomechanics	en
dc.subject.other	Cadaver	en
dc.subject.other	Capitate Bone	en
dc.subject.other	Female	en
dc.subject.other	Humans	en
dc.subject.other	Ligaments	en
dc.subject.other	Male	en
dc.subject.other	Middle Aged	en
dc.subject.other	Orthopedics	en
dc.subject.other	Scaphoid Bone	en
dc.subject.other	Stress, Mechanical	en
dc.subject.other	Tensile Strength	en
dc.subject.other	Wrist	en
dc.title	Biomechanical properties of the scapholunate ligament and the importance of its portions in the capitate intrusion injury	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.clinbiomech.2011.04.009	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.clinbiomech.2011.04.009	en
heal.publicationDate	2011	en
heal.abstract	Background: Repair of the dorsal component of the scapholunate ligament alone is the usual surgical treatment for scapholunate injuries. Recent literature has suggested that additionally repairing the palmar component of the scapholunate ligament leads to improved and lasting clinical outcomes. The aim of this study was to determine the biomechanical properties of both portions of scapholunate ligaments derived from the same wrist and compare them with the whole scapholunate ligament. The goal was to further elucidate the importance of the palmar portion of the scapholunate ligament from a biomechanical perspective. Methods: Scapholunate ligaments and their components were harvested from the same fresh frozen cadaveric wrists. Force at failure and stiffness were measured. Findings: The mean maximum loads to failure for the entire scapholunate ligament, dοrsal and palmar portions were found to be 147 (SD 54)N, 83 (SD 18)N and 86 (SD 16)N respectively. No statistical difference was found between the mean maximum load and stiffness for palmar and dorsal components (P = 0.05). Mean maximum load and stiffness, of the intermediate portion, were 36 (SD 15)N and 25 (SD 23)N/mm. Interpretation: Our biomechanical findings on the dorsal and palmar portions of the scapholunate ligament suggest that each portion contributes approximately 50% to the whole ligament tensile force. These results appear to agree with other reports about the stabilizing role of the palmar portion of the scapholunate ligament and suggest that the palmar portion of the ligament should be considered for surgical repair. © 2011 Elsevier Ltd. All rights reserved.	en
heal.journalName	Clinical Biomechanics	en
dc.identifier.doi	10.1016/j.clinbiomech.2011.04.009	en
dc.identifier.volume	26	en
dc.identifier.issue	8	en
dc.identifier.spage	819	en
dc.identifier.epage	823	en