Crosslinking characteristics of porcine tendons: Effects of fixation with glutaraldehyde or epoxy

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Title:	Crosslinking characteristics of porcine tendons: Effects of fixation with glutaraldehyde or epoxy
Authors:	Sung,HW;Shih,JS;Hsu,CS
Contributors:	化學工程與材料工程學系
Keywords:	BIOLOGICAL VALVED CONDUIT;CRUCIATE LIGAMENT;BOVINE PERICARDIUM;XENOGRAFT;COLLAGEN;REPAIR;GRAFT
Date:	1996
Issue Date:	2010-06-29 17:31:56 (UTC+8)
Publisher:	中央大學
Abstract:	Anterior cruciate ligament (ACL) injuries, if left untreated, often produce significant disability in the athletically active population. Currently, autogenous tissue is the most commonly used substitute for ACL reconstruction because its immunogenicity is virtually nonexistent. However, the functional amount of autogenous tissue available for transplantation is limited. Additionally, this transplantation procedure may create a defect at the donor site, which can result in functional disability. To address these concerns, a prototype xenograft ligament prosthesis, epoxy-fixed porcine Achilles tendon, was developed. This study was intended to investigate the crosslinking characteristics of the epoxy-fixed porcine tendon. The fresh and glutaraldehyde-fixed porcine Achilles tendons were used as controls. Fresh porcine Achilles tendons procured from a slaughterhouse were used to fabricate the ligament prostheses. A 4% epoxy (ethylene glycol diglycidyl ether) solution or a 0.625% glutaraldehyde solution was employed to fix the porcine tendons. Samples of each group were taken out at various elapsed fixation periods. The crosslinking characteristics denaturation temperature, moisture content, and fixation index-of each sample were then determined. In the study, it was learned that the crosslinking rate for the glutaraldehyde fixation was faster than that for the epoxy fixation. While the denaturation temperatures and the fixation indices for both studied groups were higher than for the fresh one, the denaturation temperature of the glutaraldehyde-fixed tendon was relatively higher than its epoxy-fixed counterpart. However, the fixation index and the moisture content for both studied groups were comparable. Also, it was noted that the epoxy-fixed tendon appeared more natural as compared to its glutaraldehyde-fixed counterpart. The implications of these findings for the epoxy-fixed tendon in the clinical ACL reconstruction require further investigation. (C) 1996 John Wiley & Sons, Inc.
Relation:	JOURNAL OF BIOMEDICAL MATERIALS RESEARCH
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

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