Lesson plan
Eburnation
Eburnation is a degenerative process of bone commonly found in patients with osteoarthritis or non-union of fractures. Friction in the joint causes the reactive conversion of the sub-chondral bone to an ivory-like surface at the site of the cartilage erosion. The word derives from Latin eburneus, which means "of ivory". Osteoarthritis is a degenerative disease of the joints characterized largely by central loss of cartilage and compensatory peripheral bone formation (osteophytes). Cameron and Macnab determined that "corrosive wear and abrasive wear play a part in producing eburnation. Laiger observed that eburnation can result from both osteoarthritis (OA) and rheumatoid arthritis (RA) at an advanced stage. They stated that while RA and ochronotic arthropathy have different processes, both may result in similar eburnation patterns. Over time, as the cartilage wears away, bare, subchondral bone is revealed. Eburnation describes the bony sclerosis which occurs at the areas of cartilage loss.
Article summary
Eburnation is a degenerative process of bone commonly found in patients with osteoarthritis or non-union of fractures. Friction in the joint causes the reactive conversion of the sub-chondral bone to an ivory-like surface at the site of the cartilage erosion. The word derives from Latin eburneus, which means "of ivory". Osteoarthritis is a degenerative disease of the joints characterized largely by central loss of cartilage and compensatory peripheral bone formation (osteophytes). Cameron and Macnab determined that "corrosive wear and abrasive wear play a part in producing eburnation. Laiger observed that eburnation can result from both osteoarthritis (OA) and rheumatoid arthritis (RA) at an advanced stage. They stated that while RA and ochronotic arthropathy have different processes, both may result in similar eburnation patterns. Over time, as the cartilage wears away, bare, subchondral bone is revealed. Eburnation describes the bony sclerosis which occurs at the areas of cartilage loss.
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Discussion questions
- Summarise the article in your own words. Which single claim would you verify first, and why?
- Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
- If two sources disagreed about one of these facts, what would you need in order to trust one over the other?
Bibliography
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Key claims and bibliography are generated from the same tracked claims and sources as the article page.