Thermal and diffusion processes in laser-induced stress relaxation and reshaping of cartilage

Баграташвили, В. Н.; Sobol, Emil N.; Sviridov, Аlexander P.; Попов, В. К.; Omelchenko, Alexander I.; Howdle, Steven M.

doi:10.1016/s0021-9290(97)00028-6

Cited by 58 publications

(54 citation statements)

References 9 publications

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“…Laser reshaping of cartilage has been well documented in both experimental studies [10,14,17,18] and controlled clinical trials [19]. While photography and time-dependent measurements of stress relaxation have illustrated the shape changes in tissue which accompany rapid laser heating, studies to date have neither examined the degree of specimen curvature nor quantitatively investigated memory effects.…”

Section: Discussionmentioning

confidence: 99%

Shape retention in porcine‐septal cartilage following Nd:YAG (λ = 1.32 μm) laser‐mediated reshaping

2001

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Section: Discussionmentioning

confidence: 99%

Shape retention in porcine‐septal cartilage following Nd:YAG (λ = 1.32 μm) laser‐mediated reshaping

2001

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“…53 The effect of laser radiation on water mass transfer through cartilage has been studied in Ref. 54. An alteration in the diffusion coefficient was attributed to alterations of the pore size in cartilaginous matrix.…”

Section: Characteristic Features and Physical Mechanisms Of Laser-indmentioning

confidence: 99%

Laser-induced regeneration of cartilage

et al. 2011

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Abstract. Laser radiation provides a means to control the fields of temperature and thermo mechanical stress, mass transfer, and modification of fine structure of the cartilage matrix. The aim of this outlook paper is to review physical and biological aspects of laser-induced regeneration of cartilage and to discuss the possibilities and prospects of its clinical applications. The problems and the pathways of tissue regeneration, the types and features of cartilage will be introduced first. Then we will review various actual and prospective approaches for cartilage repair; consider possible mechanisms of laser-induced regeneration. Finally, we present the results in laser regeneration of joints and spine disks cartilages and discuss some future applications of lasers in regenerative medicine. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).

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“…During laser irradiation, mechanically deformed cartilage undergoes a subtle change in material properties that permits tissue to be reshaped into new stable configurations [5,6,11,12,[14][15][16][17][18][19][20][21][22]. Although the mechanism responsible for shape change has not been conclusively established, the process is thought to involve a combination of collagen denaturation, alteration of weak van der Waals bonds between proteoglycan molecules, and/or water flux [9,18].…”

Section: Introductionmentioning

confidence: 99%

Characterization of temperature dependent mechanical behavior of cartilage

et al. 2003

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The anisotropic mechanical behavior of cartilage was quantitatively analyzed in the transversely and longitudinally oriented specimens. Viscoelastic behavior appeared to be strongly dependent on the water content. Using empirically determined estimates of the transition zone temperature range accompanying stress relaxation, the activation energy for stress relaxation was calculated using time and temperature superposition theory and WLF equation. Further investigation of the molecular changes, which occur during laser irradiation, may assist in understanding the thermal and mechanical behavior of cartilage and how the reshaping process might to be optimized.

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Thermal and diffusion processes in laser-induced stress relaxation and reshaping of cartilage

Cited by 58 publications

References 9 publications

Shape retention in porcine‐septal cartilage following Nd:YAG (λ = 1.32 μm) laser‐mediated reshaping

Shape retention in porcine‐septal cartilage following Nd:YAG (λ = 1.32 μm) laser‐mediated reshaping

Laser-induced regeneration of cartilage

Characterization of temperature dependent mechanical behavior of cartilage

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