Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association
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Ochronotic arthropathy is a progressive joint disorder resulting from the deposition of a derivative of homogentisic acid into connective tissues, especially meniscal and articular cartilage. Patients may present with symptoms, physical examination results, and radiographic changes consistent with degenerative joint disease. We present a case in which an operative arthroscopy of the knee was highly suggestive of ochronotic arthropathy. The definitive diagnosis of ochronosis was subsequently confirmed by laboratory and pathologic evaluation.