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Effect of CO2 laser irradiation on experimental fracture healing: A transmission electron microscopic study

✍ Scribed by X. M. Tang; B. P. Chai

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
883 KB
Volume
6
Category
Article
ISSN
0196-8092

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✦ Synopsis

The healing of standardized fracture of rabbit radius was expedited as a result of treatment with low-power COz laser irradiation. Observation with transmission electron microscope revealed the following favorable effects of C02 laser irradiation: (1) The red blood cells were induced to disintegrate, thus promoting the absorption of the hematoma. (2) The macrophages emerged early and increased in number so that debridement of the necrotic tissues was enhanced. (3) The fibroblasts were more active in producing the fibrous callus. (4) The chondrocytes were unusually active in forming bone tissues. ( 5 ) The early and sustained appearance of osteoclasts favored the bone remodeling process. ( 6) Increased capillary formation endowed the fracture healing with rich blood supply. ( 7) Deposition of calcium salts took place early.

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