CHANGES IN THE CARTILAGE OF THE POSTERIOR INTERVERTEBRAL JOINTS AFFER ANTERIOR FUSION

Abstract
1. This paper describes the macroscopic and microscopic changes that are seen in posterior intervertebral joints after anterior vertebral fusion. 2. We now have a reasonably clear view of the types of change seen under these circumstances. The type varies from case to case and in different parts of the same specimen. So far we have no clear idea of the sequence or the pattern that leads from the normal to complete fibrosis or osseous ankylosis. 3. Further experimental work is needed in order to build up a clear concept of the sequence of events and of their relative importance. To do this it will be necessary to immobilise joints for longer than before.

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