We report a case of osteochondritis dissecans (OCD) in a 4000 year old mummy from
ancient Chile. This middle-age female specimen had characteristic bilateral medial femoral
condyle erosions consistent with modern day presentations of OCD. The knee joints also
demonstrated associated loose bodies of fairly similar dimensions and shape. OCD belongs
to a group of disorders, the so-called osteochondroses, affecting the joints of the skeleton
producing fragmentation, collapse, sclerosis as well as re-ossification and reconstitution of …