Orthopaedic Surgery Resident, McGovern Medical School at UTHealth Houston, Houston, Texas.
Department of Radiology, McGovern Medical School at UTHealth Houston, Houston, Texas.
JBJS Case Connect. 2021 Oct 14;11(4):01709767-202112000-00013. doi: e21.00404.
A 79-year-old woman presented after a ground level fall with the inability to bear weight on her right hip. Radiographs and computed tomography (CT) imaging were negative for a femoral neck fracture. Her medical comorbidities precluded magnetic resonance imaging (MRI), so dual-energy CT with focused evaluation for bone edema was performed, identifying a femoral neck fracture that was stabilized surgically.
Dual-energy CT with processing for edema can successfully identify nondisplaced femoral neck fractures in MRI-contraindicated patients. This imaging modality could be useful for diagnosing femoral neck stress fractures and ipsilateral femoral neck fractures in patients sustaining high-energy femoral shaft fractures.
一位 79 岁女性因平地摔倒致右侧髋部无法负重就诊。X 线和 CT 检查均未见股骨颈骨折。因患者合并症较多而不能行 MRI 检查，故进行了双能 CT 检查，重点评估骨水肿，结果发现股骨颈骨折，行手术固定。
双能 CT 骨水肿处理后可成功诊断 MRI 禁忌证患者的无移位股骨颈骨折。该影像学方法可有助于诊断 MRI 禁忌证患者高能量股骨干骨折时的股骨颈应力骨折和同侧股骨颈骨折。
