3Toyone T,Takahashi K,Kitahara H,et al.Visualisation of symptomatic nerve roots.Prospective study of contrastenhanced MRI in patients with lumbar disc herniation[J].J Bone Joint Surg(Br),1993,4(6):529-533.
5Igbinedion B O, Akhigbe A. Correlations of radiographic findings in patients with low back pain [ J ]. Nigerian Medical Journal of the Nigeria Medical Association, 2011, 52 (1) :28 -34.
6Alkhatib B, Rosenzweig D H, Krock E, et al. Acute mechanical injury of the human intervertebral disc: link to degeneration and pain. [ J]. European Cells & Materials, 2014, 28:98 - 111.
7Mathy C, Broonen J P, Henrotin Y, et al. Development and validation of a questionnaire assessing volitional competencies to en- hance the performance of physical activities in chronic low back pain patients[ J]. B mc Musculoskeletal Disorders, 2011, 12 (6) : 1173 - 1174.