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Fig. 1 | BMC Musculoskeletal Disorders

Fig. 1

From: Spontaneous femoral neck fracture resulting from osteonecrosis involving lateral femoral head-neck junction: a retrospective study

Fig. 1

The imaging performance of a 77-year-old woman who presented with SFF with osteonecrosis involving lateral femoral head-neck junction. A, the radiograph 10 days before the SFF occurred. A low density zone appeared at the right lateral femoral head-neck junction, but there were no occult fractures. B, the radiograph after the SFF occurred. C, the CT (computerized tomography) presentation. D, the T2 weighted image of MRI showed high signal around the femoral head-neck junction

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