Tarukado Kiyoshi, Tono Osamu, Doi Toshio
Department of Orthopedic Surgery, Kyusyu University Beppu Hospital, Oita, Japan.
Asian Spine J. 2014 Feb;8(1):69-73. doi: 10.4184/asj.2014.8.1.69. Epub 2014 Feb 6.
The posterior epidural migration of lumbar disc fragments is an extremely rare event with an unknown pathogenesis. To the best of our knowledge, there are no previously reported cases of a change of ordinary disc herniation into the posterior epidural migration of lumbar disc fragments as confirmed by magnetic resonance imaging (MRI). A 26-year-old male presented to our department complaining of left buttock and lateral leg pain. An ordinary herniation was shown in the first MRI. The patient's unilateral symptoms changed into bilateral symptoms while awaiting admission to the hospital. Posterior migrated lumbar disc fragments were shown in the second MRI taken at the time of admission. Microendoscopic surgery providing a detailed observation of the region was performed. Our case indicates that an ordinary lumbar disc herniation may lead to the posterior migration of lumbar disc fragments, and that microendoscopic surgery may provide a treatment.
腰椎间盘碎片向后硬膜外迁移是一种极其罕见的情况，其发病机制尚不清楚。据我们所知，此前尚无经磁共振成像（MRI）证实的普通椎间盘突出转变为腰椎间盘碎片向后硬膜外迁移的病例报告。一名26岁男性因左臀部和小腿外侧疼痛前来我院就诊。首次MRI显示为普通椎间盘突出。在等待住院期间，患者的单侧症状转变为双侧症状。入院时进行的第二次MRI显示有腰椎间盘碎片向后迁移。实施了能对该区域进行详细观察的显微内镜手术。我们的病例表明，普通腰椎间盘突出可能导致腰椎间盘碎片向后迁移，且显微内镜手术可能提供一种治疗方法。
