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Osteoarthrosis and apatite synovitis. Pathological study of a metacarpophalangeal joint
R Lagier1, C A Baud, D Lacotte
1Department of Pathology (Osteoarticular Unit), University of Geneva Medical School, Switzerland.
Virchows Archiv. A, Pathological Anatomy and Histopathology
|January 1, 1989
Abstract:
A case of metacarpophalangeal osteoarthrosis associated with synovial apatite deposits is reported. The size of the crystals indicates that they have been thickened by a recrystallization process; the latter could have been provoked by Ca and Po4 ions released by dissolution of some apatite crystals brought by calcified debris of bone or cartilage coming from the abraded osteoarthrotic surfaces. The role of such thickened crystals in synovial inflammation is discussed as well as their possible diagnostic value in determining origin and pathogenesis of a given synovial apatite deposit.