The specimen is cartilage some 10 cm long on the outer edge, and 5 cm in the inner edge. The
outer side is thickened up to 1 cm and is nodular in appearance; a 1 cm tear can be seen extending
from the inner edge into the substance of the structure.
Two years before, this man suffered a rugby injury and developed an ache on the lateral
side of the joint particularly on full extension, on first waking in the morning. A year later, a further
rugby injury led to pain and reduction in movement, and the cartilage was removed.