膝外側半月板骨化の1例

抄録

Ossification of meniscus of the knee is relatively uncommon and the cause is unknown. Recently we experience a case of ossification of lateral meniscus of the Knee. The patient is a 26 years old male. In January 1984, he inverted and from that time he recognized right gonalgia. In july 1985, radiographs revealed a free body in the lateral joint space of the right knee. In august 1985, arthroscopy and operation of the right knee was performed. The excised specimen showed a discoid meniscus in which the anterior horn had a hard osseous tissue. Radiological examination of the specimen clearly disclosed, the trabeculae.
The ossification of meniscus is classified to a primary type and a secondary type (posttraumatic).