Laser Reshaping of Cartilage

Sobol, Emil N.; Sviridov, Аlexander P.; Omelchenko, Alexander I.; Баграташвили, В. Н.; Китай, М. С.; Harding, Stephen E.; Jones, Nicholas; Jumel, Kornelia; Mertig, Michael; Pompe, W.; Ovchinnikov, Yuri; Shekhter, Anatoly B.; Свистушкин, В. М.

doi:10.1080/02648725.2000.10648005

Cited by 83 publications

(110 citation statements)

References 39 publications

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“…1c). These findings are according to the previous data that the first step of the cartilage reshaping process is the bound-free water transition [3,4,9] and that PG network undergoes noticeable changes under reshaping and disturbs during prolonged laser treatment [4,7,9].…”

Section: Resultssupporting

confidence: 91%

Molecular processes and structural alterations in laser reshaping of cartilage

Ignatieva

Захаркина

Leroy³

et al. 2007

Laser Phys. Lett.

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Abstract:The effects of non-destructive laser irradiation on the structure and molecular processes in cartilage were studied using Raman microscopy, differential scanning calorimetry and biochemical analysis. A structural reorganization of the irradiated tissue similar to poliginization in polycrystalline solids was observed for the first time in a cartilage matrix. The difference in the Raman spectra of the irradiated and control samples was interpreted in term of a conformational alteration of glycosaminoglycan macromolecules in the reshaping mode. Laser induced modification of collagen macromolecules was not revealed by Raman spectroscopy. Thermal and biochemical analysis confirmed a preservation of triple helix for laser settings used for laserinduced stress relaxation and reshaping of cartilage.Microphotograph of the Group 3 sample with the two particles. Original magnification ×100, scale bar = 20 µm

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Section: Resultssupporting

confidence: 91%

Molecular processes and structural alterations in laser reshaping of cartilage

Ignatieva

Захаркина

Leroy³

et al. 2007

Laser Phys. Lett.

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“…• C as a threshold temperature for laser-induced stress relaxation of cartilage [3], the von Mises criterion gives σ S as 12 MPa. The last value conforms to models of polymer plasticity [20] which give σ S ∼ 7 MPa.…”

Section: Thermal Processes Under Laser Radiationmentioning

confidence: 99%

Laser reshaping and regeneration of cartilage

et al. 2007

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Demonstration of laser-induced stress relaxation in cartilage in 1992 led to the development of a novel laser surgical procedure in otolaryngology for the non-ablative reshaping of cartilage. Follow-up studies found that non-destructive laser irradiation may activate regeneration processes in cartilaginous tissue. Ongoing studies seek to characterize the physical, chemical and biological processes and mechanisms involved in the reshaping and regeneration of deformed and diseased cartilage under moderate laser heating. A theoretical model is developed considering laser-induced stress relaxation in cartilage as a process of micropore formation. Results obtained provide scientific and engineering data for development of novel laser surgical procedures for correction of the nasal septum and treatment of spine disc cartilage diseases. This review is aimed to present state of art and recent results in laser -induced reshaping and regeneration of cartilage.Histological cross-section of porcine nasal septal cartilage after laser reshaping using 1.56 µm laser radiation with power of 1.5 W, spot diameter 2 mm, exposure time of 5 s. Stained with Hematoxylin and Eosin, ×400

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“…60,80,81 It was first used in clinics for the correction of nasal septum deformities and for reshaping ears. [82][83][84][85] The prospects of laser reshaping of costal and tracheal cartilages as well as the epiglottis have also been demonstrated.…”

Section: Laser Regeneration Of Cartilage In Otolaryngologymentioning

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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Laser Reshaping of Cartilage

Cited by 83 publications

References 39 publications

Molecular processes and structural alterations in laser reshaping of cartilage

Molecular processes and structural alterations in laser reshaping of cartilage

Laser reshaping and regeneration of cartilage

Laser-induced regeneration of cartilage

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