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Effect of CO 2 laser irradiation on experimental fracture healing: A transmission electron microscopic study
Author(s) -
Tang X. M.,
Chai B. P.
Publication year - 1986
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.1900060309
Subject(s) - bone healing , irradiation , laser , transmission electron microscopy , chemistry , blood supply , calcium , electron microscope , wound healing , biomedical engineering , pathology , materials science , anatomy , biophysics , surgery , medicine , biology , optics , nanotechnology , physics , organic chemistry , nuclear physics
The healing of standardized fracture of rabbit radius was expedited as a result of treatment with low‐power CO 2 laser irradiation. Observation with transmission electron microscope revealed the following favorable effects of CO 2 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.