ABSTRACT

Complete avulsion fracture of the tibial tuberosity is rarely seen in adolescents. Aseptic necrosis (Osgood-Schlatter disease) of the tibial tuberosity is a predisposing factor. The duration and intensity of physical activities play major roles in ligamentous injuries around the knee joint in adolescents. Two patients with Ogden type IIIA avulsion fracture of the tibial tuberosity are presented here. One patient had been diagnosed with Osgood-Schlatter disease before the injury, and the other was postoperatively found to have tight hamstrings. Both fractures occurred while the patients were running during football matches. Both were treated with open reduction and internal fixation with cannulated screws. During the two-year follow-up, no complications were detected.