a condition of a joint with significant erosion of the concave surface, resulting in migration of the convex surface medially. SEE ALSO: Otto disease. [arthro- + G. katadysis, a dipping under, a setting, fr. dyo, to make sink]

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ar·thro·ka·tad·y·sis (ahr″thro-kə-tadґə-sis) [arthro- + Gr. katadysis a falling down] protrusio acetabuli.

Medical dictionary. 2011.

Look at other dictionaries:

  • Arthrokatadysis — Ar|thro|kata̱|dysis [zu ↑arthro... u. gr. ϰαταδυειν = untergehen; untertauchen] w; , ...dy̲sen (in fachspr. Fügungen: ...a̱dyses): Funktionseinschränkung eines Gelenks (z. B. des Hüftgelenks bei ↑Protrusio acetabuli) …   Das Wörterbuch medizinischer Fachausdrücke

  • protrusio acetabuli — SYN: Otto disease. * * * a sinking in or subsidence of the floor of the acetabulum with protrusion of the femoral head through it (intrapelvic protrusion) resulting in limitation of movement of the hip joint. Called also arthrokatadysis and Otto… …   Medical dictionary

  • Protrusion — Pro|trusio̱n [zu lat. protrudere, protrusum = fortstoßen] w; , en, in fachspr. Fügungen: Pro|tru̱sio, Mehrz.:̱|nes: Hervortreten, Verlagerung nach außen (z. B. eines Organs aus seiner normalen Lage). Pro|tru̱sio aceta̱buli: Verlagerung der… …   Das Wörterbuch medizinischer Fachausdrücke

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