[Ossification of the distal femoral epiphysis. On the question of osteochondrosis dissecans in children].

The authors report on ossification variants: roughness (Ludloff: protruberances), so-called isolated ossification centers or islands and accessory ossification centers which are illustrated with reference to personal observations. Their clinical significance is pointed out. The existence of osteochondrosis dissecans in children and pre-adolescents is refuted, especially since no histologically proven observation has been described in the literature.