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The effects of a 6-week immobilization period on rabbit knee articular cartilage surfaces were investigated by a new semiquantitative stereomicroscopic method following ink staining and processing for scanning electron microscopy. All surfaces of the immobilized knee joint were affected and displayed significant degenerative alterations. The knee joint contralateral to the immobilized one exhibited slight changes which could be interpreted as a sign of altered loading after immobilization. Articular surfaces of the patella and lateral condyle of the femur proved to be best suited for surface analysis on account of the small size, distinct borders and inherent evenness of the cartilage in non-treated animals.
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Helminen et al. (1983) studied this question.
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