eburnation


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Related to eburnation: eburnation of dentin

eburnation

 [e″ber-na´shun]
conversion of bone into a hard, ivory-like mass.

eb·ur·na·tion

(ē'bŭr-nā'shŭn),
A change in exposed subchondral bone in degenerative joint disease in which it is converted into a dense substance with a smooth surface like ivory.
Synonym(s): bone sclerosis
[L. eburneus, of ivory]

eburnation

(ē′bər-nā′shən, ĕb′ər-)
n.
Degeneration of bone into a hard, ivorylike mass, as that which occurs at the articular surfaces of bones in osteoarthritis.

eburnation

A specific type of bone sclerosis consisting of a marbled appearance of weight-bearing joints with complete cartilaginous erosion, leaving polished, sclerotic bone as the new articular surface. Cross-section of the articulation reveals a narrowed joint space, osteosclerosis and cystic changes overlying the affected bone, which is surrounded by bony and cartilaginous overgrowths (osteophytes/exostoses).

eburnation

Bone sclerosis A marbled appearance of weight-bearing joints with complete cartilaginous erosion, leaving polished, sclerotic bone as the new articular surface. See Osteoporosis.

e·bur·na·tion

(ē-bŭr-nā'shŭn)
A change in exposed subchondral bone in degenerative joint disease in which it is converted into a dense substance with a smooth surface like ivory.
[L. eburneus, of ivory]

eburnation

1. The loss or thinning of the bearing cartilage of a joint, that occurs in degenerative disease such as OSTEOARTHRITIS, so that the underlying bone is exposed and becomes dense and polished by friction.
2. The burnishing or hardening of the exposed DENTINE of a tooth that results from the calcification of the soft material in the tubules.

e·bur·na·tion

(ē-bŭr-nā'shŭn)
A change in exposed subchondral bone in degenerative joint disease in which it is converted into a dense substance with a smooth surface like ivory.
[L. eburneus, of ivory]
References in periodicals archive ?
Another might be that the infected cells were lost during the final stages of otosclerotic eburnation. The latter explanation is supported by the well-known morphologic pattern seen in late-stage otosclerosis, in which only a very small number of osteoblasts, blood vessels, and connective tissue cells can be found.
A, There are changes consistent with osteoarthritis with eburnation and subchondral sclerosis present on the medial femoral condyle and medial tibial plateau.
Osteoarthritis, evidenced by lipping, porosity and eburnation, was recorded by location, severity and extent.
The joint-space loss is associated with subchondral bony eburnation and cyst formation.
(12) This procedure has well established effectiveness, as long as there is only early chondromalacia and no frank cartilage eburnation found intraoperatively.
Schmorl's nodes, eburnation, osteophytes, and changes in disc space narrowing were visualized at multiple discovertebral junctions (Figure 1).
We feel osteotomy should be performed before complete compartment eburnation has occurred.