Apophyseal avulsion fractures of the pelvis are relatively rare.
We have recently experienced eight cases caused by sports. They consists of six cases at superior anterior iliac crest and two cases at ischial tuberosity. All cases were young men ranged from 14 to 17 years old. The kinds of causal sports were track events for six cases, baseball for one case and soccer for one case. Five cases of them were treated conservatively, and three cases with large displacement operatively. All cases were good results.
Also, we discussed the mechanism of them using telemeter-EMG.
