Michel C R, Berard J
Chir Pediatr. 1982;23(5):293-7.
After Harrington's procedure, the authors analyse anatomical modifications observed on the 3 last grafted vertebrae and on the underlying healthy lumbar segment. At the level of the grafted vertebrae it was observed a quite constant discal piching and a change in morphological aspect of the vertebra which become higher than large. The ratio between width and length physiologically at 1,20 was at 0,96. At the level of mobile underlying segment to the graft, lordosis remains at physiological value, although distributed on a shorter lumbar segment and that without change in discal angle. This fact was induced by an increase of the lordosis percentage incumbent to the vertebral body. This percentage physiologically at 10 passed 30 after Harrington's procedure because of an increased wedge-shaped of the 4th and 5th lumbar vertebra. This phenomenon was as much marked as the graft was precociously performed and as they descended lower. This might explain the good long term tolerance for the increased work of the free underlying rachis to a Harrington's procedure.
在哈林顿手术之后，作者分析了在最后3个植入椎体以及其下方健康腰椎节段观察到的解剖学改变。在植入椎体水平，观察到椎间盘相当恒定的变窄以及椎体形态学方面的变化，即椎体变得高大于宽。生理状态下宽长比为1.20，而此时为0.96。在植入物下方的可活动节段水平，前凸保持在生理值，尽管分布在较短的腰椎节段且椎间盘角度无变化。这一事实是由椎体承担的前凸百分比增加所致。由于第4和第5腰椎椎体楔形增加，该百分比在生理状态下为10%，在哈林顿手术后超过了30%。这种现象在植入手术较早进行且植入位置较低时同样明显。这可能解释了对于哈林顿手术中下方自由脊柱增加的负荷，长期耐受性良好的原因。
