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Proceedings Paper

Numerical analysis of costal cartilage warping after laser modification
Author(s): Allen Foulad; Cyrus Manuel; Jinwan Kim; Brian J. F. Wong
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Paper Abstract

Grafts obtained from peripheral regions of costal cartilage have an inherent tendency to warp over time. Laser irradiation provides a potential method to control the warping process, thus yielding stable grafts for facial reconstructive surgery. In our current study, we propose a simple and well-fitting model that numerically describes the degree of warping of laser irradiated costal cartilage grafts. Using a Nd:YAG laser (λ=1.32μm) at various exposure settings, grafts harvested from the peripheral regions of porcine costal cartilage were irradiated. The resulting graft geometry was objectively fitted to a curve using a quadratic regression model. The coefficient of determination (R2) demonstrated a very strong fit for all grafts modeled. A quadratic regression is simple to perform and results in a single numerical value that appropriately describes the degree of cartilage warping. Our proposed model is valuable in assessing the effect of laser irradiation on the warping process of costal cartilage.

Paper Details

Date Published: 2 March 2010
PDF: 6 pages
Proc. SPIE 7548, Photonic Therapeutics and Diagnostics VI, 75482M (2 March 2010); doi: 10.1117/12.849618
Show Author Affiliations
Allen Foulad, Beckman Laser Institute and Medical Clinic, Univ. of California, Irvine (United States)
Univ. of California, Irvine (United States)
Cyrus Manuel, Beckman Laser Institute and Medical Clinic, Univ. of California, Irvine (United States)
Jinwan Kim, Beckman Laser Institute and Medical Clinic, Univ. of California, Irvine (United States)
Brian J. F. Wong, Beckman Laser Institute and Medical Clinic, Univ. of California, Irvine (United States)
Univ. of California, Irvine (United States)


Published in SPIE Proceedings Vol. 7548:
Photonic Therapeutics and Diagnostics VI
Anita Mahadevan-Jansen; Andreas Mandelis; Brian Jet-Fei Wong; Nikiforos Kollias; Henry Hirschberg; Kenton W. Gregory; Reza S. Malek; E. Duco Jansen; Guillermo J. Tearney; Steen J. Madsen; Bernard Choi; Justus F. R. Ilgner; Haishan Zeng; Laura Marcu, Editor(s)

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