The human incudomalleal joint. Chondroid articular cartilage and degenerative arthritis

✍ Scribed by Ruth Gussen

• Publisher: John Wiley and Sons
• Year: 1971
• Tongue: English
• Weight: 864 KB
• Volume: 14
• Category: Article
• ISSN: 0004-3591
• DOI: 10.1002/art.1780140406

✦ Synopsis

Abstract

The articular cartilage of the incudomalleal joint appears to be secondary or chondroid cartilage, formed and maintained by the synovial cells of the joint space. It might be considered epiphyseal cartilage, forming chondroid cartilage and chondroid bone normally within the deep cartilage of the joint. The early joint changes seen with age consist of globule formation and cell clustering in the superficial cartilage layer, with gradual transformation to a chondro‐osseous matrix at the surface. The changes of degenerative arthritis are loss of surface demarcation, focal surface defects, and foci of thinning and absence of the intra‐articular disc with approximation of uneven, calcified joint surfaces.