Authors: J Bredow J Oppermann M J Scheyerer K Gundlfinger W F Neiss S Budde T Floerkemeier P Eysel F Beyer
Publish Date: 2015/03/07
Volume: 135, Issue: 5, Pages: 607-612
Abstract
Anteroposterior and lateral Xrays of the lumbar spine of 102 patients with LSS were included in this retrospective radiologic study Measurements of SS and LL were carried out by five examiners Intraobserver correlation and correlation between LL and SS were calculated with Pearson’s r linear correlation coefficient and intraclass correlation coefficients ICC were calculated for inter and intraobserver reliability In addition patients were examined in subgroups with respect to previous surgery and the current therapyLumbar lordosis averaged 456° range 25°–749° SD 142° intraobserver correlation was between Pearson r = 093 and 098 The measurement of SS averaged 353° range 138°–669° SD 96° intraobserver correlation was between Pearson r = 089 and 096 Intraobserver reliability ranged from 0966 to 0992 ICC in LL measurements and 0944–0983 ICC in SS measurements There was an interobserver reliability ICC of 0944 in LL and 0990 in SS Correlation between LL and SS averaged r = 079 No statistically significant differences were observed between the analyzed subgroupsManual measurement of LL and SS in patients with LSS on lateral radiographs is easily performed with excellent intra and interobserver reliability Correlation between LL and SS is very high Differences between patients with and without previous decompression were not statistically significant
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