変へん形けい性せい膝しつ関かん節せつ症しょう

also: へんけいせいひざかんせつしょう

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Meanings

osteoarthritis of the knee; gonarthrosis

Medical term for degenerative knee joint disease. Commonly used in clinical contexts.

変へん形けい性せい関かん節せつ症しょう
General term for osteoarthritis; 変形性膝関節症 specifies the knee.
関かん節せつリウマチ
Rheumatoid arthritis, an autoimmune condition, distinct from degenerative osteoarthritis.

変形性膝関節症
- へんけいせいしつかんせつしょう
  Standard medical term using the kanji 膝.
- へんけいせいひざかんせつしょう
変へん形けい性せいひざ関かん節せつ症しょう
Variant spelling with ひざ in kana, making it easier to read for non-specialists.
へんけいせいひざかんせつしょう

Compound of 変形性 (deformity-type), 膝 (knee), 関節 (joint), and 症 (disease). A modern medical coinage.