J Korean Orthop Assoc.  2001 Jun;36(3):293-293.

Extension of Necrotic Area by Recurrent Ischemic Episodes in Osteonecrosis of the Femoral Head: A Report of Three Cases

  • 1Department of Orthopedic Surgery, Seoul National University College of Medicine, seoul, korea.
  • 2Department of Orthopedic Surgery, Chosun University College of Medicine, kwangju, korea.


We describe three cases of osteonecrosis of the femoral head (ONFH) in which the extent of necrosis increased after repeated episodes of ischemic attack. In all cases the evidence for two different ischemic attacks was clearly seen on MR images. The significance of the recurrent ischemic attacks is not clear yet but the detectable incidence of recurrence seems to be very low. We discuss the possibility that the increased extent of osteonecrosis may be the result of multiple ischemic attacks.


Osteonecrosis of the femoral head (ONFH); Recurrent ischemic attacks; The increased extent of osteonecrosis
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