Schnebel B E, Simmons J W, Chowning J, Davidson R
Alamo Bone and Joint Clinic, San Antonio, Texas.
Spine (Phila Pa 1976). 1988 Mar;13(3):309-12. doi: 10.1097/00007632-198803000-00014.
The effects of flexion and extension exercises on lumbar discs and low-back pain are controversial. Our goals were to develop a technique and program for digitizing and analyzing discograms and to study the motion of intradiscal dye in response to flexion and extension. Thirty-five patients following awake discography were evaluated with lateral radiographs obtained in an extension position and a flexion position. Fifty-three segments with normal morphology and 47 segments with abnormal morphology were studied. Discograms with normal morphology showed numerically significant change in position with a more anterior position occurring during extension. Changes in the position of intradiscal dye in discs with abnormal morphology were less predictable. Digitizing was an advantageous technique.
屈伸运动对腰椎间盘和下腰痛的影响存在争议。我们的目标是开发一种用于椎间盘造影数字化和分析的技术及程序，并研究椎间盘内染料在屈伸运动时的移动情况。对35例清醒状态下接受椎间盘造影的患者，在伸展位和屈曲位拍摄侧位X线片进行评估。研究了53个形态正常的节段和47个形态异常的节段。形态正常的椎间盘造影显示位置有显著的数字变化，伸展时位置更靠前。形态异常的椎间盘内染料位置变化较难预测。数字化是一种有利的技术。
