In:
Zeitschrift für Orthopädie und Unfallchirurgie, Georg Thieme Verlag KG
Abstract:
Purpose Retrospective radiological examination (X-ray and MRI) aims to investigate the diagnostic value of various methods of measurement with regard to the determination of the
intervertebral disc heights of the lumbar spine. Methods Of 130 patients without detectable damage to the intervertebral discs, the X-ray and MRI images of the lumbar spine were evaluated. The measurements were made either in the
center line (Hurxthal) or in the 2-point method according to Dabbs or in the 3-point method according to Fyllos. Results The average intervertebral disc height for all measured segments was 8.8 mm (SD 1.4 mm). In the Hurxthal measurement, the significantly (p 〈 0.001) highest values were
measured with an average of 9.1 mm (SD 1.3 mm). The average readings for the Fyllos method were 7.5 mm (SD 1.2 mm) and according to Dabbs 6.7 mm (SD 1.2 mm). The measured values of Observer I were on average 1.2 mm (SD 0.3 mm) smaller than those of Observer II (p 〈 0.001). The highest interobserver correlation was found in the measurements in projection radiography in the AP
method according to Dabbs and Fyllos. The measured values in men were 0.5 mm (SD 0.01 mm) larger than in women (p 〈 0.001), regardless of the method. The height of the intervertebral
discs increases significantly until the age of 40, but beyond the age of 40, the height of the intervertebral discs either remains constant or falls off slightly, but not significantly. The lordosis angle of the lumbar spine and the concavity index of the vertebral bodies showed no correlation with the measured disc heights. Conclusions The radiological measurements to determine the intervertebral disc height have only moderate reliability. The results of X-rays are superior to those of MRI examination.
The most accurate results are provided by measurements based on exact landmarks of the vertebral bodies. The method according to Dabbs seems to be the most accurate at the moment. There is no clear age-atypical chondrosis in patients without intervertebral disc damage.
Type of Medium:
Online Resource
ISSN:
1864-6697
,
1864-6743
Language:
German
Publisher:
Georg Thieme Verlag KG
Publication Date:
2023
detail.hit.zdb_id:
2280747-0
detail.hit.zdb_id:
2304338-6