Miller R A, Hardcastle P, Renwick S E
Department of Orthopaedic Surgery, University of New Mexico Hospital, Albuquerque.
Orthop Rev. 1992 Jun;21(6):753-7.
The study presented here used lateral flexion and extension roentgenograms to determine lumbosacral motion in healthy persons and in patients with spondylolisthesis. The lumbosacral corset, Jewett extension brace, and plastic thoracolumbosacral orthosis (TLSO) were then placed and repeat roentgenograms were done to see if effective immobilization could be obtained. Although individual variation existed, there appeared to be no significant difference in lower lumbar motion between the two groups studied, and the orthotics acted in a similar fashion on both the volunteers and the patients. The lumbosacral corset was unable to immobilize the L3-S1 levels. There was a statistically significant decrease in the average lateral disk space motion at L3-4 and L4-5 with the use of the Jewett brace and the TLSO (P less than .01); however, the motion was never completely eliminated. No brace could adequately immobilize the L5-S1 level, and some people demonstrated increased motion at this level while wearing the orthotics.
本研究采用腰椎侧屈和后伸X线片来确定健康人和腰椎滑脱患者的腰骶部活动情况。随后佩戴腰骶束腹带、朱厄特伸展支具和塑料胸腰骶矫形器（TLSO），并重复拍摄X线片，以观察是否能实现有效固定。尽管存在个体差异，但在研究的两组人群中，下腰椎活动似乎没有显著差异，并且这些矫形器对志愿者和患者的作用方式相似。腰骶束腹带无法固定L3 - S1节段。使用朱厄特支具和TLSO时，L3 - 4和L4 - 5节段的平均椎间盘间隙活动有统计学意义的显著降低（P小于0.01）；然而，这种活动从未完全消除。没有一种支具能充分固定L5 - S1节段，并且有些人在佩戴矫形器时该节段的活动反而增加。
