Two cartilage autografts used for ossiculoplasty for 3 and 8 years were examined under the transmission electron microscope. The most significant change was progressive deposition of calcium salts in the matrix of the cartilage. Chondrocytes showed degenerative changes in the nuclei, cytoplasm, and cell walls. Contrary to common belief, autograft cartilage did not seem to resorb in time.
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