Radiographic Detection of Osteoporotic Vertebral Fracture without Collapse
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Background: On retrospective basis, we investigated the detection of osteoporotic ver-tebral fractures (OVFs) without radiologic collapse using a modified Yoshida’s classifica-tion, which was designed by the authors. Methods: We observed 82 cases in 76 patients with confirmed OVFs without collapse at the thoracolumbar junction. The following fac-tors were measured: age, gender, body mass index (BMI, kg/m2), bone mineral density (BMD, mg/cm3), type of a modified Yoshida’s classification. The correct diagnosis rate for the presence and location of OVFs and the correct diagnosis rate according to the mor-phological type by a modified Yoshida’s classification of the OVFs were analyzed. Re -sults: The mean BMI was 21.2; mean BMD, 44.1; and T-score, -4.4. As for the four sub-types of anterior cortical morphological change, there were 14 cases of the protruding type, 12 cases of the indented type, 5 cases of the disrupted type and 8 cases of the prow type. As for the three subtypes of endplate depression, there were 20 cases of up-per endplate depression, 12 cases of lower endplate depression and 11 cases of end-plate slippage type. According to the examiners, there was a significant difference be-tween being informed before and after the modified Yoshida’s classification. For the rela-tionship of examiners and the type of fracture, there was a significant difference be-tween being informed before and after the modified Yoshida’s classification, particularly in the protruding type and the upper plate type. Conclusions: A modified Yoshida’s clas -sification can be helpful for the diagnosis of OVFs without radiologic collapse in a simple radiograph.
Abstract
Background: On retrospective basis, we investigated the detection of osteoporotic ver-tebral fractures (OVFs) without radiologic collapse using a modified Yoshida’s classifica-tion, which was designed by the authors. Methods: We observed 82 cases in 76 patients with confirmed OVFs without collapse at the thoracolumbar junction. The following fac-tors were measured: age, gender, body mass index (BMI, kg/m2), bone mineral density (BMD, mg/cm3), type of a modified Yoshida’s classification. The correct diagnosis rate for the presence and location of OVFs and the correct diagnosis rate according to the mor-phological type by a modified Yoshida’s classification of the OVFs were analyzed. Re -sults: The mean BMI was 21.2; mean BMD, 44.1; and T-score, -4.4. As for the four sub-types of anterior cortical morphological change, there were 14 cases of the protruding type, 12 cases of the indented type, 5 cases of the disrupted type and 8 cases of the prow type. As for the three subtypes of endplate depression, there were 20 cases of up-per endplate depression, 12 cases of lower endplate depression and 11 cases of end-plate slippage type. According to the examiners, there was a significant difference be-tween being informed before and after the modified Yoshida’s classification. For the rela-tionship of examiners and the type of fracture, there was a significant difference be-tween being informed before and after the modified Yoshida’s classification, particularly in the protruding type and the upper plate type. Conclusions: A modified Yoshida’s clas -sification can be helpful for the diagnosis of OVFs without radiologic collapse in a simple radiograph.
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