Kaplan P A, Orton D F, Asleson R J
Department of Radiology, University of Nebraska Medical Center, Omaha 68105.
Radiology. 1987 Nov;165(2):533-5. doi: 10.1148/radiology.165.2.3659378.
Osteoporosis frequently affects the vertebral column and causes compression fractures, biconcave ("fish-mouth") vertebrae, kyphosis, and pain. The cases are reported of three postmenopausal osteoporotic women who had neurologic symptoms of the lower extremities because of vertebral body fractures with a retropulsed fragment narrowing the spinal canal. None of the women had experienced trauma. The fractures resembled burst-type fractures that result from axial loading with major trauma. The retropulsed fragments could be seen best on computed tomographic or magnetic resonance images and were very subtle on conventional radiographs, on which an abnormal posterior vertebral body line was the only abnormality detected. This complication of osteoporosis of the spine is important to recognize so that appropriate treatment can be instituted.
骨质疏松症常累及脊柱，导致压缩性骨折、双凹形（“鱼嘴样”）椎体、脊柱后凸和疼痛。本文报告了3例绝经后骨质疏松症女性病例，她们因椎体骨折伴后移骨块使椎管狭窄而出现下肢神经症状。这些女性均未经历过外伤。这些骨折类似于由重大外伤引起的轴向负荷导致的爆裂型骨折。后移骨块在计算机断层扫描或磁共振图像上显示最佳，在传统X线片上则非常细微，后者仅检测到椎体后缘线异常这一唯一异常情况。认识到脊柱骨质疏松症的这一并发症很重要，以便能够采取适当的治疗措施。
