From the Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Clin Nucl Med. 2015 Sep;40(9):752-4. doi: 10.1097/RLU.0000000000000886.
Subchondral insufficiency fracture of the femoral head may be confused with osteonecrosis, mainly because of radiological overlap. SPECT/CT with Tc-99 m hydroxymethylene diphosphonate images in 7 patients with subchondral insufficiency fracture were retrospectively reviewed and compared with those from 11 patients with symptomatic early osteonecrosis. In all of the hips with subchondral insufficiency fracture, SPECT/CT showed increased uptake at the subchondral lesions of the femoral head. On the other hand, in all of the hips with osteonecrosis, absence of uptake was confirmed at the subchondral lesions. SPECT/CT may assist in differentiating subchondral insufficiency fracture from osteonecrosis.
股骨头的软骨下不全骨折可能与骨坏死混淆，主要是因为影像学上的重叠。回顾性分析了 7 例软骨下不全骨折患者和 11 例有症状早期骨坏死患者的 Tc-99m 亚甲基二膦酸盐 SPECT/CT 图像。在所有的股骨头软骨下不全骨折的髋关节中，SPECT/CT 显示在股骨头的软骨下病变处摄取增加。另一方面，在所有的骨坏死髋关节中，均证实软骨下病变处无摄取。SPECT/CT 可能有助于区分软骨下不全骨折和骨坏死。
