New technique to extend the useful life of a biodegradable cartilage implant

T. L. Spain; C. M. Agrawal; K. A. Athanasiou

New technique to extend the useful life of a biodegradable cartilage implant

T. L. Spain, C. M. Agrawal, K. A. Athanasiou

Department of Orthopaedics

Research output: Contribution to conference › Paper › peer-review

Abstract

A blend of three copolymers of 50:50 poly(DL-lactide-co-glycolide) with inherent viscosities of 0.23, 0.58 and 1.37 dl/gm was used as the starting material of a cartilage implant. The new design's salient in vitro biodegradation characteristics were obtained and compared with those of the current design. The axial strain was calculated at the surface of the implant by normalizing the equilibrium creep value with the initial implant thickness. The Boussinesq-Papkovitch equation was used to calculate Young's modulus, and the porosity was quantified by applying the NIH Image 1.60 software to the images produced by scanning electron microscopy.

Original language	English (US)
Number of pages	1
State	Published - 1998
Event	Proceedings of the 1998 17th Southern Biomedical Engineering Conference - San Antonio, TX, USA Duration: Feb 6 1998 → Feb 8 1998

Other

Other	Proceedings of the 1998 17th Southern Biomedical Engineering Conference
City	San Antonio, TX, USA
Period	2/6/98 → 2/8/98

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "New technique to extend the useful life of a biodegradable cartilage implant",

abstract = "A blend of three copolymers of 50:50 poly(DL-lactide-co-glycolide) with inherent viscosities of 0.23, 0.58 and 1.37 dl/gm was used as the starting material of a cartilage implant. The new design's salient in vitro biodegradation characteristics were obtained and compared with those of the current design. The axial strain was calculated at the surface of the implant by normalizing the equilibrium creep value with the initial implant thickness. The Boussinesq-Papkovitch equation was used to calculate Young's modulus, and the porosity was quantified by applying the NIH Image 1.60 software to the images produced by scanning electron microscopy.",

author = "Spain, {T. L.} and Agrawal, {C. M.} and Athanasiou, {K. A.}",

year = "1998",

language = "English (US)",

note = "Proceedings of the 1998 17th Southern Biomedical Engineering Conference ; Conference date: 06-02-1998 Through 08-02-1998",

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TY - CONF

T1 - New technique to extend the useful life of a biodegradable cartilage implant

AU - Spain, T. L.

AU - Agrawal, C. M.

AU - Athanasiou, K. A.

PY - 1998

Y1 - 1998

N2 - A blend of three copolymers of 50:50 poly(DL-lactide-co-glycolide) with inherent viscosities of 0.23, 0.58 and 1.37 dl/gm was used as the starting material of a cartilage implant. The new design's salient in vitro biodegradation characteristics were obtained and compared with those of the current design. The axial strain was calculated at the surface of the implant by normalizing the equilibrium creep value with the initial implant thickness. The Boussinesq-Papkovitch equation was used to calculate Young's modulus, and the porosity was quantified by applying the NIH Image 1.60 software to the images produced by scanning electron microscopy.

AB - A blend of three copolymers of 50:50 poly(DL-lactide-co-glycolide) with inherent viscosities of 0.23, 0.58 and 1.37 dl/gm was used as the starting material of a cartilage implant. The new design's salient in vitro biodegradation characteristics were obtained and compared with those of the current design. The axial strain was calculated at the surface of the implant by normalizing the equilibrium creep value with the initial implant thickness. The Boussinesq-Papkovitch equation was used to calculate Young's modulus, and the porosity was quantified by applying the NIH Image 1.60 software to the images produced by scanning electron microscopy.

UR - http://www.scopus.com/inward/record.url?scp=0031700024&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031700024&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:0031700024

T2 - Proceedings of the 1998 17th Southern Biomedical Engineering Conference

Y2 - 6 February 1998 through 8 February 1998

ER -

New technique to extend the useful life of a biodegradable cartilage implant

Abstract

Other

ASJC Scopus subject areas

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