Pressure and morphologic analysis of discography in diagnosis of discogenic low back pain
10.3760/cma.j.issn.0253-2352.2012.04.005
- VernacularTitle:椎间盘造影压力及形态学变化对椎间盘源性腰痛的诊断意义
- Author:
Yue HAN
;
Qun XIA
;
Yongcheng HU
;
Jidong ZHANG
;
Baoshan XU
;
Ning JI
- Publication Type:Journal Article
- Keywords:
Low back pain;
Intervertebral disk;
Radiography;
Pressure;
Diagnosis
- From:
Chinese Journal of Orthopaedics
2012;32(4):317-322
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore and evaluate the clinical significance of pressure-controlled discography in diagnosis of discogenic low back pain.Methods From July 2008 to October 2009,pressurecontrolled discography under C-arm guidance was taken in 52 patients with suspected discogenic low back pain,including 83 degenerative discs and 52 good discs.Based on the pressure of discography inducing pain,the discs were divided into 4 groups:pressure ≤ 30 psi,30 psi＜pressure ≤50 psi,50 psi＜pressure≤70psi,and pressure＞70 psi.By using SPSS 11.0 statistical software,the correlation of pressure of discography and morphologic representation was analyzed.Results Among 83 degenerative discs,positive discography was detected in 46 discs.During discography,the pressure of positive degenerative discs was (36.5±15.7)psi; the pressure of negative degenerative discs was (50.5±26.2) psi,and the normal discs’ pressure was (98.6±3.7) psi.A significant difference could be found between the mentioned three groups.Among different pressure groups,the positive rate were analyzed by x2 test,and a significant difference was found as well.But no significant difference was found between the group of less than 30 psi and group of 30 to 50 psi.According to Adams’ morphological classification of discography,the pressure of disc varied from 30 to 50 psi in grade Ⅲ,while less than 30 psi in grade Ⅳ.There was a significant difference of discography pressure between discography positive grade Ⅲ and grade Ⅳ.Conclusion The pressure-controlled discography is valuable for clinical diagnosis of discogenic low back pain.The morphological classification of discs could indicate the degree of the disruption of annular fibrosus.
