Lumbar lordosis and sacral slope in lumbar spinal stenosis: standard values and measurement accuracy

Archives of Orthopaedic and Trauma Surgery
J BredowF Beyer

Abstract

Radiological study. To asses standard values, intra- and interobserver reliability and reproducibility of sacral slope (SS) and lumbar lordosis (LL) and the correlation of these parameters in patients with lumbar spinal stenosis (LSS). Anteroposterior and lateral X-rays 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 therapy. Lumbar lordosis averaged 45.6° (range 2.5°-74.9°; SD 14.2°), intraobserver correlation was between Pearson r = 0.93 and 0.98. The measurement of SS averaged 35.3° (range 13.8°-66.9°; SD 9.6°), intraobserver correlation was between Pearson r = 0.89 and 0.96. Intraobserver reliability ranged from 0.966 to 0.992 ICC in LL measurements and 0.944-0.983 ICC in SS measurements. There was an interobserver reliability ICC of 0.944 in LL and 0.990 in SS. Correlation between LL and SS ...Continue Reading

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Citations

Mar 30, 2016·Clinical Orthopaedics and Related Research·Christina I EspositoDavid J Mayman
Oct 11, 2017·PM & R : the Journal of Injury, Function, and Rehabilitation·Leigh F HankePeter J Moley
Jan 10, 2021·BMC Musculoskeletal Disorders·Trixie MakJason Pui Yin Cheung

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