A correlative study of imaging features between lumbar disc herniation and lumbar Scheuermann's disease as well as Scheuermann's signs
WANG Zhen
LI Yu-qian
WANG Xiao-dong
LI Hong-bin
ZHANG Jian-hua
Abstract：Objective To investigate the relationship between lumbar disc herniation ( LDH ) and lumbar Scheuermann's disease ( LSD ) as well as Scheuermann's signs and the role of LSD in the etiology of LDH by imaging observation. Methods From March 2011 to March 2014, a total of 450 motion segments from 75 patients diagnosed with LDH ( T12 / L1 - L5 / S1 ) in our hospital were chosen as the research objects, among which 143 segments with LDH were selected as the experiment group ( LDH group ), and the left 307 segments were treated as the control group ( N group ). The incidences of Scheuermann's signs and LSD were examined based on the review of CT, MRI and X-ray films. Furthermore, in LDH group, the incidence of LDH within segments with Scheuermann's signs was compared to that within segments without Scheuermann's signs. Results The incidence of all Scheuermann's signs was higher in LDH group than that in N group. The incidence of Schmorl's node was 23.8% ( 34 / 143 ) to 5.5% ( 17 / 307; χ2 = 32.29, P < 0.001 ), and the incidence of irregular endplate was 55.9% ( 80 / 143 ) to 4.2% ( 13 / 307; χ2 = 159.10, P < 0.001 ). The incidence of posterior bony edge separation was 27.3% ( 39 / 143 ) to 0.3% ( 1 / 307; χ2 = 87.47, P < 0.001 ), and the incidence of wedge-shaped vertebra was 7.0% ( 10 / 143 ) to 0.7% ( 2 / 307; χ2 = 12.77, P < 0.001 ). The incidence of LSD in N group was only 0.98% ( 3 / 307; χ2 = 105.78, P < 0.001 ), while 34.26% ( 49 / 143 ) segments in LDH group were associated with LSD. In LDH group, the incidence of LDH within segments with Scheuermann's signs ( Schmorl's node: 66.7%, 34/51; χ2 = 82.61, P < 0.001; irregular endplate: 86.0%, 80/93; χ2 = 191.51, P < 0.001;posterior bony edge separation: 97.5%, 39 / 40; χ2 = 152.47, P < 0.001; wedge-shaped vertebra: 83.3%, 10 / 12;χ2 = 41.05, P < 0.001 ) was all higher than that within segments without Scheuermann's signs ( 12.2%, 39 / 320 ).Conclusions There is a close relationship between LDH and LSD, suggesting that LSD might be involved in the pathogenesis of LDH. Schmorl's node, irregular endplate, wedge-shaped vertebra and posterior bony edge separation are associated with LDH.
Keywords：Scheuermann diseaseIntervertebral disc displacementLumbar vertebraePhotography
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 386-389 )