Paajanen H, Tertti M
Department of Orthopedic Surgery, Central Hospital of Mikkeli, Finland.
Arch Orthop Trauma Surg. 1991;111(1):16-9. doi: 10.1007/BF00390186.
The concurrence of early disc degeneration and abnormal segmental motion in spondylolysis of young low back pain patients (n = 14) was investigated using magnetic resonance imaging (MRI) and flexion-extension radiography. Seven patients with L5 spondylolisthesis had normal discs on MRI and 7 had disc degeneration below the slipped vertebra. The parallel motion, angular mobility and centre of motion were similar in the degenerated discs and in normal discs. The present study shows that in adolescents the motion pattern and hydration of discs associated with spondylolysis and spondylolisthesis are not always abnormal. The early dehydration and degeneration of lumbar discs observed on MRI are not always associated with abnormal mobility of the corresponding motion segment.
利用磁共振成像（MRI）和屈伸位X线摄影术，对14例年轻下腰痛患者腰椎峡部裂早期椎间盘退变与节段运动异常的并发情况进行了研究。7例L5椎体滑脱患者的MRI显示椎间盘正常，7例患者滑脱椎体下方存在椎间盘退变。退变椎间盘与正常椎间盘的平行运动、角向活动度及运动中心相似。本研究表明，在青少年中，与腰椎峡部裂和椎体滑脱相关的椎间盘运动模式及水合作用并不总是异常的。MRI上观察到的腰椎间盘早期脱水和退变并不总是与相应运动节段的异常活动相关。
