4Chen YC, Lee SH, Chen D. Intradiscal pressrue study of percuta- neous disc decompression with nrcleoplasty in human cadavers [ J ]. Spine,2003,28 ( 7 ) : 661-665.
2Andersson GB. Epidemiologic features of chronic low-back pain. Lancet, 1999, 354(9178): 581-585.
3Dagenais S, Caro J, Haldeman S. A systematic review of low back pain cost of illness studies in the United States and internationally. Spine J, 2008, 8(1): 8-20.
4Deyo RA, Weinstein JN. Low back pain. N Engl J Med, 2001, 344(5): 363-370.
5Crock HV. A reappraisal of intervertebral disc lesions. Med J Aust, 1970, 1(20): 983-989.
6Schwarzer AC, Aprill CN, Derby R, et al. The prevalence and clinical features of internal disc disruption in patients with chronic low back pain. Spine, 1995, 20(17): 1878-1883.
7Singh K, Ledet E, Carl A. Intradiscal therapy: a review of current treatment modalities. Spine, 2005, 30 (17 Suppl): S20-26.
8Merskey H, Bogduk N. Classification of chronic pain. Descriptions of chronic pain syndrome and definitions of pain terms.Seattle: IASP Press, 1994: 180-181.
9Sachs BL, Vanharanta H, Spivey MA, et al. Dallas discogram description. A new classification of CT/discography in low-back disorders. Spine, 1987, 12(3): 287-294.
10Herkowitz HN, Garfin SR, Balderston RA, et al. Rothman-Simeone the spine. 4th ed. Beijing: Science Press, 2001: 750.
