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Abstract
Damage to the articular cartilage does occur, on occasion, during the course of diagnostic
arthroscopy and arthroscopic surgery. Because of this, we decided to do an arthroscopic
gross and histologic study of the alterations in the articular cartilage and the underlying
bone that we produced in the joints of dogs. Depending upon the instruments used and
the depth of the lesion created, various types of lesions were produced in the cartilage,
including track-like fissures, patch-like defects, and even superficial damage to
the subchondral bone. Superficial lesions reaching only to the transitional zone were
repaired by a smoothing of the edges of the defects. In the deeper lesions, repair
consisted of a flat fibrous covering with sclerosis of the subchondral bone. These
defects were followed for a period of 6 months, and in no case did a complete filling
in occur. We realize that this animal experimental study is not a model for human
osteoarthritis, but it casts some light on the importance of iatrogenic lesions of
the joint. This study was carried out for the purpose of drawing attention to damage
of the articular cartilage that can occur during arthroscopic surgery, especially
in narrow joint spaces. These findings underline the need for responsible and effective
education in the field of diagnostic and therapeutic arthroscopy.
Key Words
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Copyright
© 1986 Arthroscopy Association of North America. Published by Elsevier Inc.
