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Sinuvertebral nerve block treats discogenic low back pain: a retrospective cohort study
Zezheng Liu1, Runxun Ma1, Chaohui Fan1
1Department of Orthopedics, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China.
Background:
Discogenic low back pain (DLBP) is considered the most common type of chronic low back pain (CLBP). Sinuvertebral nerve block (SVNB) is a rapid and precise intervention performed under local anesthesia to treat DLBP induced CLBP. Thus, in this study, we aimed to explore the clinical efficacy of SVNB for DLBP.
Methods:
We retrospectively included 32 DLBP patients from July 2020 and April 2021. Inclusion criteria: The patients had chronic pain, diagnosed as single-segment disc degeneration induced DLBP, and suffered from one-year ineffective conservative treatment. SVNB was performed and the patients were followed up at 3 and 7 days, and at 1 and 3 months after SVNB. The basic clinical characteristics, including age and gender, were collected. The measurements of Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI) were assessed.
Results:
The average age was 49.31±14.37 years, and females vs. males was 20 (62.50%) vs. 12 (37.50%). The preoperative VAS and ODI score were 5.75±1.41 and 32.59±21.56, respectively. The VAS score was reduced to 2.50±1.46, 2.63±1.60, 3.53±2.17, and 3.78±2.18 at 3 and 7 days, and 1 and 3 months after SVNB, respectively (P<0.05). The improvement rates in the VAS score were 56.52%, 54.34%, 38.61%, and 34.26% at 3 and 7 days, and 1 and 3 months after SVNB, respectively. 18 patients (56.25%) experienced varying degrees of pain recurrence within 3 months. The ODI score was reduced by 17.28±13.06, 16.84±13.51, 19.63±17.12, and 21.44±19.03 points at 3, 7 days and 1, 3 months after SVNB, respectively (P<0.05). At 3 day and 3 month after SVNB, the ODI scores of 22 patients (68.75%) and 20 patients (62.50%) decreased to ≤20, respectively. The ODI improvement rates were 46.98%, 48.33%, 39.80%, and 34.24% at 3, 7 days and 1, 3 months after SVNB, respectively.
Conclusions:
We conducted a retrospective study of the clinical efficacy of SVNB for DLBP. As a rapid and cost-effective minimally invasive treatment, SVNB provided some assistance for the short-term pain relief and physical functional improvement of DLBP. SVNB could be a good choice for the treatment of DLBP.
