Inflammation of a bone and its overlying articular cartilage. [osteo- + G. chondros, cartilage, + -itis, inflammation]
- o. deformans juvenilis SYN: Legg-Calvé-Perthes disease.
- o. deformans juvenilis dorsi SYN: Scheuermann disease.
- o. dissecans complete or incomplete separation of a portion of joint cartilage and underlying bone, usually involving the knee, associated with epiphyseal aseptic necrosis.
- syphilitic o. inflammation of the epiphysial line associated with congenital syphilis. SYN: Wegner disease.

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os·teo·chon·dri·tis -.kän-'drīt-əs n inflammation of bone and cartilage

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1. necrosis of a bone due to interruption of its blood supply, which causes it to fragment and collapse before undergoing revascularization. See Kienböck's disease, Köhler's disease, Legg-Calvé-Perthes disease.
2. inflammation of an apophysis from the pull of the attached tendon, usually occurring during the adolescent growth spurt. A fragment of bone may be avulsed (see avulsion), producing a lump. See Osgood-Schlatter disease, Sever's disease.

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os·teo·chon·dri·tis (os″te-o-kon-driґtis) [osteo- + chondr- + -itis] inflammation of both bone and cartilage.

Medical dictionary. 2011.

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