Frobin W, Brinckmann P, Biggemann M
Institut für Experimentelle Biomechanik, Westfälische Wilhelms-Universität, Münster.
Z Orthop Ihre Grenzgeb. 1997 Sep-Oct;135(5):394-402. doi: 10.1055/s-2008-1039407.
Published methods to quantify height of lumbar discs from lateral radiographic views of the lumbar spine yield inaccurate results due to distortion in central projection. Normal values of disc height have not been compiled.
Starting from an analysis of the imaging properties of vertebral bodies in a lateral view and following a logical evolution of Farfan's proposal, a new protocol for the measurement of disc height is given which is independent of distortion. A database of normal values of the height of lumbar discs from T12/L1 to L5/S1 was compiled from 892 lateral views of healthy male and female subjects in the age range between 16 and 57 years.
Employing the new protocol, height of all discs on a lateral view can be measured. Variations in position (standing, side-lying) do not influence the result. Retrospective investigations are feasible. The precision of the disc height measurement amounts to 4.15%. Normal, age-appropriate values for the height of lumbar discs are given for the first time. In the individual case, disc height can be quantitatively evaluated by comparison with the normative database.
The new protocol can be employed to quantitatively identify processes which effect a decrease of disc height. In the individual case, the new protocol and the comparison with the normal database can be employed to quantitatively assess overload injury to lumbar discs in compensation cases.
由于中央投影的畸变，已发表的从腰椎侧位X线片量化腰椎间盘高度的方法会产生不准确的结果。尚未汇编椎间盘高度的正常值。
从对侧位椎体成像特性的分析开始，并遵循法凡提议的逻辑演变，给出了一种独立于畸变的测量椎间盘高度的新方案。从年龄在16至57岁之间的892名健康男性和女性受试者的侧位片中汇编了从T12/L1至L5/S1的腰椎间盘高度正常值数据库。
采用新方案，可以测量侧位片上所有椎间盘的高度。体位（站立、侧卧）的变化不影响结果。回顾性研究是可行的。椎间盘高度测量的精度为4.15%。首次给出了与年龄相符的腰椎间盘高度正常值。在个别病例中，可以通过与标准数据库比较来定量评估椎间盘高度。
新方案可用于定量识别导致椎间盘高度降低的过程。在个别病例中，新方案以及与正常数据库的比较可用于定量评估赔偿案件中腰椎间盘的过载损伤。
