Guilbeau J C, Arrivé L, Maurice F, Nahum H
J Radiol. 1986 Oct;67(10):741-4.
A case of insufficiency fracture of the sacrum is reported. These fractures usually occur in elderly women and are secondary to various conditions, mainly postmenopausal or steroid-induced osteoporosis and radiation therapy. They are often overlooked or confused clinically and radiographically with metastatic disease. Findings on plain films are often subtle. Radionuclide bone scan shows a characteristic H or butterfly shaped pattern of increased uptake in the sacral alae. The diagnosis is confirmed by conventional tomograms or CT which show the fracture always surrounded by prominent sclerosis.
报告了一例骶骨应力性骨折病例。这些骨折通常发生在老年女性中，继发于多种情况，主要是绝经后或类固醇诱导的骨质疏松症以及放射治疗。它们在临床和影像学上常被忽视或与转移性疾病混淆。平片上的表现通常不明显。放射性核素骨扫描显示骶骨翼有特征性的H形或蝴蝶形摄取增加模式。通过传统断层扫描或CT确诊，这些检查显示骨折总是被明显的硬化所包围。
