Figure 1.

Template for categorizing macroscopical joint lesions in sows. a: Cartilage erosion (arrows) on the medial humeral condyle. b: Cartilage ulceration (arrow) on the medial femoral condyle. c: Cartilage repair (arrow) of the medial femoral condyle d: Marginal osteophytes (arrows) on processus anconeus of ulna. e: Cartilage infoldings (arrow) on the medial femoral condyle. f: Cartilage infoldings on the medial femoral condyle. Cross section of Fig. 2e.