Wolf A, Bradford D, Lonstein J, Ogilvie J, Erickson D
Spine (Phila Pa 1976). 1987 Apr;12(3):233-7. doi: 10.1097/00007632-198704000-00007.
Diplomyelia is an uncommon variant of diastematomyelia in which the spinal cord remains divided caudal to the diastematomyelia spur. Presented here are three adults who presented with a sign-and-symptom complex that is likely to occur only when such an anatomic aberration is found. Each patient complained of pain and paresis in one leg. Neurologic examination demonstrated dysfunction of not only both long tracts but also lower motor modalities in the symptomatic leg and no abnormalities in the opposite leg. These findings, therefore, would strongly suggest that each leg was supplied by one of the split spinal cords, with only one cord being compromised. When planning surgical intervention on these patients, one must be aware that removal of the central spur alone may not resolve the problem because the spur, unlike that in diastematomyelia, does not tether the split spinal cords.
脊髓纵裂是脊髓分裂症的一种罕见变体，其中脊髓在脊髓分裂症骨刺的尾侧仍保持分裂状态。本文介绍了三名成年人，他们表现出一种体征和症状组合，这种组合可能仅在发现这种解剖学异常时才会出现。每位患者均主诉一条腿疼痛和无力。神经系统检查显示，不仅双侧长传导束功能障碍，而且患侧下肢运动功能也有障碍，对侧下肢无异常。因此，这些发现强烈提示，每条腿由分裂脊髓中的一条供血，只有一条脊髓受到损害。在为这些患者计划手术干预时，必须意识到仅切除中央骨刺可能无法解决问题，因为与脊髓分裂症中的骨刺不同，该骨刺不会束缚分裂的脊髓。
