抄録
Both healthy and injured tibial tuberosities in the Osgood-Schlatter's disease were roentgenologically examined on the views of varing roentgenographic penetrations.
1 The small elevation of bone was seen in 35% of normal tibial surface above the tuberosity, and it tended to situate on the medial side of the sagittal plane which included in the center of the tuberosity.
2. In fresh cases of Osgood-Schlatter's disease, the lesions were almost localized in front of the epiphyseal beak and the extents could be divided into four groops.
3. The wide variant of deformity in the final stage of Osgood-Schlatter's disease were classified into four types (I a-b, II a-g, IIIa-c, IV) according to the Kikuchi's method which demonstrates the tuberosity exactly. The abnormal buttress of bone on the tibial surface above the tuberosity, one of the most characteristic featuress in the disease, were seen in 60% of the series. Theses buttress were situated just above or upper medial side of the tuberosities, and seemed to rise from normal elevation of bone. The proximal end of the tibial tuberosity was commonly lifted and in the highly deformed cases the buttress looked ass if to be a part of tuberosity as a result of the fusion with the tuberosity.
